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Papers by amanda dempsey

Research paper thumbnail of Population-based Assessment of Cardiometabolic-related Diagnoses in Youth With Klinefelter Syndrome: A PEDSnet Study

The Journal of Clinical Endocrinology & Metabolism, 2022

Context Diabetes and cardiovascular diseases are common among men with Klinefelter syndrome (KS) ... more Context Diabetes and cardiovascular diseases are common among men with Klinefelter syndrome (KS) and contribute to high morbidity and mortality. Objective To determine if cardiometabolic-related diagnoses are more prevalent among youth with KS than matched controls in a large population-based cohort. Methods Secondary data analysis of electronic health records from 6 pediatric institutions in the United States (PEDSnet). Patients included all youth with KS in the database (n = 1080) and 4497 youth without KS matched for sex, age (mean 13 years at last encounter), year of birth, race, ethnicity, insurance, site, and duration of care (mean 7 years). The main outcome measures were prevalence of 5 cardiometabolic-related outcomes: overweight/obesity, dyslipidemia, dysglycemia, hypertension, and liver dysfunction. Results The odds of overweight/obesity (OR 1.6; 95% CI 1.4-1.8), dyslipidemia (3.0; 2.2-3.9), and liver dysfunction (2.0; 1.6-2.5) were all higher in KS than in controls. Adjus...

Research paper thumbnail of Communicating With Vaccine-Hesitant Parents: A Narrative Review

Academic Pediatrics, 2021

Although vaccines are considered one of the most effective medical interventions to prevent vacci... more Although vaccines are considered one of the most effective medical interventions to prevent vaccine preventable disease and associated morbidity and mortality, a number of recent outbreaks are threatening the gains made by vaccines. Vaccine hesitancy is a key driver of vaccine refusal and has been associated with vaccine preventable outbreaks. While parents seek information from many sources to inform their vaccine decision-making process, they continue to view their child's pediatric provider as a trusted source of vaccine information. The communication that occurs between a provider and parent with regards to vaccination is critical in reducing concerns and nudging parents toward vaccine acceptance. However, vaccine-hesitant parents raise issues in this encounter that many providers feel ill-equipped to answer, due to lack of training on evidence-based communication strategies. We focus on promising approaches related to patient-provider communication within the context of vaccination. We found empirical evidence that the use of a presumptive format to recommend vaccines, motivational interviewing, and tailoring information to increase message salience are approaches that can positively affect vaccine acceptance. As providers continue to serve as important influencers in the vaccine decision-making process, it is evident that there is a need to continue to identify evidence-based, and practically implementable approaches to mitigate parental vaccine hesitancy. Providers play a key role in improving coverage rates, and therefore it is paramount to seek ways to improve how providers communicate about vaccines.

Research paper thumbnail of Developing Computable Phenotypes of Pediatric Chronic Conditions in PEDSnet

Research paper thumbnail of Behavioral Health Diagnoses in Youth with Differences of Sex Development or Congenital Adrenal Hyperplasia Compared with Controls: A PEDSnet Study

The Journal of Pediatrics, 2021

OBJECTIVE To evaluate the odds of a behavioral health diagnosis among youth with a difference of ... more OBJECTIVE To evaluate the odds of a behavioral health diagnosis among youth with a difference of sex development (DSD) or congenital adrenal hyperplasia (CAH) compared with matched controls in the PEDSnet database. STUDY DESIGN All youth with a diagnosis of DSD (n=1,216) or CAH (n=1,647) and at least one outpatient encounter were extracted from the PEDSnet database and propensity-score matched on 8 variables (1:4) to controls (n=4,864 and 6,588, respectively) using multivariable logistic regression. The likelihood of having behavioral health diagnoses was examined using generalized estimating equations. RESULTS Youth with a DSD had higher odds of a behavioral health diagnosis (OR: 1.7 [95% CI: 1.4, 2.1], p<0.0001) and neurodevelopmental diagnosis (1.7 [95% CI: 1.4, 2.0], P < .0001 compared with matched controls. Youth with CAH did not have increased odds of a behavioral health diagnosis (1.0 [95% CI: 0.9, 1.1], p=0.9) compared with matched controls but did have higher odds of developmental delay (1.8 [95% CI: 1.4, 2.4], p<0.0001). CONCLUSIONS Youth with a DSD diagnosis have higher odds of a behavioral health or neurodevelopmental diagnosis compared with matched controls. Youth with CAH have a higher odds of developmental delay, highlighting the need for screening in both groups.

Research paper thumbnail of A Longitudinal Comparison of Alternatives to Body Mass Index Z-Scores for Children with Very High Body Mass Indexes

The Journal of Pediatrics, 2021

OBJECTIVE The current CDC BMI z-scores are inaccurate for BMIs ≥ 97th percentile. We, therefore, ... more OBJECTIVE The current CDC BMI z-scores are inaccurate for BMIs ≥ 97th percentile. We, therefore, considered 5 alternatives that can be used across the entire BMI distribution: modified BMIz, %CDC95th percentile, extended BMIz, %median, and %median adjusted for the dispersion of BMIs. STUDY DESIGN We illustrate the behavior of the metrics among children of different ages and BMIs. We then compared the longitudinal tracking of the BMI metrics in electronic health record (EHR) data from 1.17 million children in PEDSnet using the intraclass correlation coefficient (ICC) to determine if one metric was superior. RESULTS Our examples show that using CDC BMIz for high BMIs can result in nonsensical results. All alternative metrics showed higher tracking than CDC BMIz among children with obesity. Of the alternatives, modified BMIz performed poorly among children with severe obesity, and %median performed poorly among children who did not have obesity at their first visit. The highest ICCs were generally seen for extended BMIz, adjusted %median, and %CDC95th percentile. CONCLUSIONS Based on the examples of differences in the BMI metrics, the longitudinal tracking results, and current familiarity BMI z-scores and percentiles, extended BMIz and extended BMI percentile may be suitable replacements for the current z-scores and percentiles. These metrics are identical to those in the CDC growth charts for BMIs < 95th percentile and are superior for very high BMIs. Researchers' familiarity with the current CDC z-scores and clinicians with the CDC percentiles may ease the transition to the extended BMI scale.

Research paper thumbnail of Behavioral Health Diagnoses in Youth with Gender Dysphoria Compared with Controls: A PEDSnet Study

The Journal of Pediatrics, 2021

OBJECTIVE To assess the odds of a psychiatric or neurodevelopmental diagnosis among youth with a ... more OBJECTIVE To assess the odds of a psychiatric or neurodevelopmental diagnosis among youth with a diagnosis of gender dysphoria compared with matched controls in a large electronic health record dataset from six pediatric health systems, PEDSnet. We hypothesized that youth with gender dysphoria would have higher odds of having psychiatric and neurodevelopmental diagnoses than controls. STUDY DESIGN All youth with a diagnosis of gender dysphoria (n=4,173 age at last visit 16.2 + 3.4) and at least one outpatient encounter were extracted from the PEDSnet database and propensity-score matched on 8 variables to controls without gender dysphoria (n=16,648, age at last visit 16.2 + 4.8) using multivariable logistic regression. The odds of having psychiatric and neurodevelopmental diagnoses were examined using generalized estimating equations. RESULTS Youth with gender dysphoria had higher odds of psychiatric (OR: 4.0 [95% CI: 3.8, 4.3] P < .0001) and neurodevelopmental diagnoses (1.9 [1.7, 2.0], p<0.0001). Youth with gender dysphoria were more likely to have a diagnosis across all psychiatric disorder sub-categories, with particularly high odds of mood disorder (7.3 [6.8, 7.9], p<0.0001) and anxiety (5.5 [5.1, 5.9], p<0.0001). Youth with gender dysphoria had a greater odds of autism spectrum disorder (2.6, [2.2, 3.0], p<0.0001). CONCLUSIONS Youth with gender dysphoria at large pediatric health systems have greater odds of psychiatric and several neurodevelopmental diagnoses compared with youth without gender dysphoria. Further studies are needed to evaluate changes in mental health over time with access to gender affirming care.

Research paper thumbnail of Development and evaluation of an EHR‐based computable phenotype for identification of pediatric Crohn's disease patients in a National Pediatric Learning Health System

Learning Health Systems, 2020

ObjectivesTo develop and evaluate the classification accuracy of a computable phenotype for pedia... more ObjectivesTo develop and evaluate the classification accuracy of a computable phenotype for pediatric Crohn's disease using electronic health record data from PEDSnet, a large, multi‐institutional research network and Learning Health System.Study DesignUsing clinician and informatician input, algorithms were developed using combinations of diagnostic and medication data drawn from the PEDSnet clinical dataset which is comprised of 5.6 million children from eight U.S. academic children's health systems. Six test algorithms (four cases, two non‐cases) that combined use of specific medications for Crohn's disease plus the presence of Crohn's diagnosis were initially tested against the entire PEDSnet dataset. From these, three were selected for performance assessment using manual chart review (primary case algorithm, n = 360, primary non‐case algorithm, n = 360, and alternative case algorithm, n = 80). Non‐cases were patients having gastrointestinal diagnoses other than ...

Research paper thumbnail of AutoPEWS: Automating Pediatric Early Warning Score Calculation Improves Accuracy Without Sacrificing Predictive Ability

Pediatric Quality & Safety, 2020

Introduction: Pediatric early warning scores (PEWS) identify hospitalized children at risk for de... more Introduction: Pediatric early warning scores (PEWS) identify hospitalized children at risk for deterioration. Manual calculation is prone to human error. Electronic health records (EHRs) enable automated calculation, removing human error. This study's objective was to compare the accuracy of automated EHR-based PEWS calculation (AutoPEWS) to manual calculation and evaluate the non-inferiority of AutoPEWS in predicting deterioration. Methods: We performed a retrospective cohort study inclusive of non-intensive care unit inpatients at a freestanding children's hospital over 4.5 months in Fall 2018. AutoPEWS mapped the historical manual PEWS scoring rubric to frequently used EHR documentation. We determined accuracy by comparing the expected respiratory subset score based on the current respiratory rate to the actual respiratory score of AutoPEWS and the manual PEWS. The agreement was determined using kappa statistics. We used predicted probabilities from a generalized linear mixed model to calculate areas under the curve for each combination of scores (AutoPEWS, manual) and deterioration outcome (rapid response team activation, unplanned intensive care unit transfer, critical deterioration event). We compared the adjusted difference in areas under the curves between the scores. Non-inferiority was defined as a difference of <0.05. Results: There were 23,514 total PEWS representative of 5,384 patients. AutoPEWS respiratory scores were 99.97% accurate, while the manual PEWS respiratory scores were 86% accurate. AutoPEWS were higher overall than the manual PEWS (mean 0.65 versus 0.34). They showed a fair-to-good agreement (weighted kappa 0.42). Non-inferiority of AutoPEWS compared with the manual PEWS was demonstrated for all deterioration outcomes. Conclusions: Automation of PEWS calculation improved accuracy without sacrificing predictive ability.

Research paper thumbnail of Be inFLUential: Evaluation of a multifaceted intervention to increase influenza vaccination rates among pediatric inpatients

Vaccine, 2019

Background and Objective: Annual influenza vaccination is recommended for individual 6 months of ... more Background and Objective: Annual influenza vaccination is recommended for individual 6 months of age, yet vaccination rates remain below national targets in the US. Hospitalization provides another medical setting for influenza vaccination, but the effectiveness of inpatient interventions has not been well studied. Our objective was to evaluate the effectiveness of a multifaceted intervention to increase influenza vaccination rates among pediatric inpatients. Methods: We conducted a pre-post interventional study on medical inpatient units at Children's Hospital Colorado from September 2016-April 2017 (pre-intervention) and September 2017-April 2018 (intervention). The intervention targeted nurses (web-based education modules, huddles and reminders) and providers (vaccination lists in the electronic health record, reminders, vaccination reports and financial incentives for residents). Outcomes were influenza vaccine ordering rates, and influenza vaccination rates at discharge. We analyzed data using descriptive statistics, bivariate and logistic regression. Results: Among 4,050 inpatients in 2016-2017 and 4,523 inpatients in 2017 aged 6 months, vaccination status was documented for 2,902/4,050 (71.7%) and 3,431/4,523 (75.9%) children aged > 6 months of age hospitalized during the study period. The vaccine ordering rate among eligible children was 28.8% in the pre-intervention season versus 50.2% in the intervention season (p < 0.001). The intervention was associated with 1.23 (95% CI 1.11-1.35) times higher odds of appropriate vaccination screening on admission, 2.27 (95% CI 2.01-2.56) times higher odds of a vaccination being ordered, and 1.39 (95% CI 1.27-1.53) times higher odds of a child being vaccinated against influenza at discharge (all p < 0.001). Residents (56%) and medical providers (39%) were more likely to order vaccines compared with nurses (5%), p = 0.014). Conclusion: A multifaceted intervention targeting nurses, residents and providers comprising education, visual reminders, vaccination reports and financial incentives is an effective way of improving influenza vaccine ordering, resulting in higher inpatient influenza vaccination rates.

Research paper thumbnail of Outcomes for Pediatric Asthmatic Inpatients After Implementation of an Emergency Department Dexamethasone Treatment Protocol

Hospital Pediatrics, 2019

OBJECTIVES: Evidence supports using dexamethasone for mild-to-moderate asthma exacerbations in th... more OBJECTIVES: Evidence supports using dexamethasone for mild-to-moderate asthma exacerbations in the emergency department, but the effectiveness of dexamethasone versus prednisone for asthmatic patients who are hospitalized is unclear. Our aim was to compare outcomes for inpatients before and after our emergency department’s adoption of dexamethasone for the treatment of acute asthma exacerbations. METHODS: In this single-center retrospective cohort study, we employed interrupted time series analyses to control for secular trends while evaluating our outcomes of length of stay, total inflation-adjusted hospital charges, and ICU transfer rates for patients admitted with asthma. RESULTS: Data were analyzed over 36 months (January 2014–April 2017) and included 1015 subjects (606 in the preprotocol change [pre-PC] group and 409 in the postprotocol change [post-PC] group). In the pre-PC group, prednisone only was used in 96% of subjects. In the post-PC group, prednisone only was used in 7%...

Research paper thumbnail of Effects of age, sex, race/ethnicity, and allergy status in obesity‐related pediatric asthma

Pediatric Pulmonology, 2019

RationaleObesity in children increases the risk for new asthma. How age, sex, race/ethnicity, and... more RationaleObesity in children increases the risk for new asthma. How age, sex, race/ethnicity, and allergy status affect the relationship between obesity and asthma is unclear. This study describes the relationship between high body mass index (BMI) and incident asthma.MethodsWe conducted a retrospective cohort study to compare asthma incidence among normal weight, overweight, and obese 2 to 6, 7 to 11, and 12 to 17 year olds to define the effects of sex, race/ethnicity, and allergy status. Weight status was determined at baseline and asthma incidence was defined as ≥2 asthma encounters and ≥1 asthma prescriptions. We used multivariable Poisson regression to estimate adjusted incident asthma rates and risk ratios.ResultsData from 192 843 2 to 6 year olds, 157 284 7 to 11 year olds, and 157 369 12 to 17 year olds were included. The relative risks (95% confidence interval [CI]) of new asthma among obese children in 2 to 6 year olds, 7 to 11 year olds, and 12 to 17 year olds were 1.25 (...

Research paper thumbnail of Development of a Values-Tailored Web-Based Intervention for New Mothers to Increase Infant Vaccine Uptake (Preprint)

BACKGROUND Vaccine hesitancy among parents leads to childhood under-vaccination and outbreaks of ... more BACKGROUND Vaccine hesitancy among parents leads to childhood under-vaccination and outbreaks of vaccine preventable disease. Because reasons for vaccine hesitancy are diverse, there is often not enough time during regular clinical visits for medical providers to adequately address all the concerns parents have. Providing individually tailored vaccine information via the internet prior to a clinical visit may be a good mechanism for effectively allaying parents vaccination concerns while also being time efficient. Including tailoring based on values is a promising, but untested, approach to message creation. OBJECTIVE To describe the process by which we developed a web-based intervention that is being used in an ongoing randomized, controlled trial aimed at improving the timeliness of infant vaccination by reducing parental vaccine hesitancy. METHODS Development of the intervention incorporated evidence-based health behavior theories. A series of interviews, surveys and feedback ses...

Research paper thumbnail of Neurologic Manifestations of Influenza A(H3N2) Infection in Children During the 2016–2017 Season

Journal of the Pediatric Infectious Diseases Society, 2018

Among 182 children with influenza infection in 2016–2017, 18% had neurologic manifestations of in... more Among 182 children with influenza infection in 2016–2017, 18% had neurologic manifestations of influenza (NMI), including seizures and encephalopathy; 85% of these children were infected with the H3N2 strain. Children with NMI had 3.5-times-higher odds of having a neurologic comorbidity than those without NMI and a 10-fold increased odds of hospitalization.

Research paper thumbnail of Exploring Facilitators and Barriers to Initiation and Completion of the Human Papillomavirus (HPV) Vaccine Series among Parents of Girls in a Safety Net System

International Journal of Environmental Research and Public Health, 2018

Objective: To assess, among parents of predominantly minority, low-income adolescent girls who ha... more Objective: To assess, among parents of predominantly minority, low-income adolescent girls who had either not initiated (NI) or not completed (NC) the HPV vaccine series, attitudes and other factors important in promoting the series, and whether attitudes differed by language preference. Design/Methods: From August 2013-October 2013, we conducted a mail survey among parents of girls aged 12-15 years randomly selected from administrative data in a Denver safety net system; 400 parents from each group (NI and NC) were targeted. Surveys were in English or Spanish. Results: The response rate was 37% (244/660; 140 moved or gone elsewhere; 66% English-speaking, 34% Spanish-speaking). Safety attitudes of NIs and NCs differed, with 40% NIs vs. 14% NCs reporting they thought HPV vaccine was unsafe (p < 0.0001) and 43% NIs vs. 21% NCs that it may cause long-term health problems (p < 0.001). Among NCs, 42% reported they did not know their daughter needed more shots (English-speaking, 20%, Spanish-speaking 52%) and 39% reported that "I wasn't worried about the safety of the HPV vaccine before, but now I am" (English-speaking, 23%, Spanish-speaking, 50%). Items rated as very important among NIs in the decision regarding vaccination included: more information about safety (74%), more information saying it prevents cancer (70%), and if they knew HPV was spread mainly by sexual contact (61%). Conclusions: Safety concerns, being unaware of the need for multiple doses, and low perceived risk of infection remain significant barriers to HPV vaccination for at-risk adolescents. Some parents' safety concerns do not appear until initial vaccination.

Research paper thumbnail of Parental Perception of Comorbidities in Children With Dravet Syndrome

Pediatric Neurology, 2017

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service... more This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Research paper thumbnail of Being Overweight or Obese and the Development of Asthma

Pediatrics, 2018

OBJECTIVES: Adult obesity is linked to asthma cases and is estimated to lead to 250 000 new cases... more OBJECTIVES: Adult obesity is linked to asthma cases and is estimated to lead to 250 000 new cases yearly. Similar incidence and attributable risk (AR) estimates have not been developed for children. We sought to describe the relationship between overweight and obesity and incident asthma in childhood and quantify AR statistics in the United States for overweight and obesity on pediatric asthma. METHODS: The PEDSnet clinical data research network was used to conduct a retrospective cohort study (January 2009–December 2015) to compare asthma incidence among overweight and/or obese versus healthy weight 2- to 17-year-old children. Asthma incidence was defined as ≥2 encounters with a diagnosis of asthma and ≥1 asthma controller prescription. Stricter diagnostic criteria involved confirmation by spirometry. We used multivariable Poisson regression analyses to estimate incident asthma rates and risk ratios and accepted formulas for ARs. RESULTS: Data from 507 496 children and 19 581 972 e...

Research paper thumbnail of Examining strategies for improving healthcare providers’ communication about adolescent HPV vaccination: evaluation of secondary outcomes in a randomized controlled trial

Human Vaccines & Immunotherapeutics, 2019

There is a critical need for campaigns and interventions to increase rates of human papillomaviru... more There is a critical need for campaigns and interventions to increase rates of human papillomavirus (HPV) vaccination among U.S. adolescents. Healthcare providers are key stakeholders in parents' HPV vaccine decision-making. The current study presents the evaluation of secondary outcomes in a multicomponent communication-based intervention to improve healthcare providers' communication about HPV vaccination. Evaluation was conducted via surveys of providers participating in a 12-month randomized controlled trial. Findings suggest use of communication components (combined use of the presumptive approach [PA] with all patients, and motivational interviewing and a fact sheet with vaccine hesitant parents) contributed to providers in the intervention group reporting higher perceived levels of parental HPV vaccine acceptance than control providers, as well as increased vaccination rates in the intervention arm in the main RCT.

Research paper thumbnail of Noninitiation and Noncompletion of HPV Vaccine Among English- and Spanish-Speaking Parents of Adolescent Girls: A Qualitative Study

Academic pediatrics, Jan 28, 2017

The Advisory Committee on Immunization Practices recommends routine human papillomavirus (HPV) va... more The Advisory Committee on Immunization Practices recommends routine human papillomavirus (HPV) vaccination for female adolescents aged 11 to 12 years, yet vaccination rates remain low. We conducted a qualitative study to understand English- and Spanish-speaking parents' reasons for noninitiation or noncompletion of the HPV vaccine series for their daughters. Parents of female adolescents aged 12 to 15 years who had not initiated or not completed the HPV vaccine series were identified through administrative data in 2 large urban safety net health care systems in Colorado. Focus groups and in-depth interviews were conducted with English-speaking parents and in-depth interviews were conducted with Spanish-speaking parents. All data were recorded, transcribed, and analyzed for thematic content by experienced analysts using established qualitative content analysis techniques. Forty-one parents participated in the study. Thirty parents participated in individual interviews and 11 pare...

Research paper thumbnail of Impact of Nonmedical Vaccine Exemption Policies on the Health and Economic Burden of Measles

Academic Pediatrics, 2017

Research paper thumbnail of 1108Timing of Information-Seeking about Childhood Vaccines for Pregnant and Recently-Delivered Women

Open Forum Infectious Diseases, 2014

Research paper thumbnail of Population-based Assessment of Cardiometabolic-related Diagnoses in Youth With Klinefelter Syndrome: A PEDSnet Study

The Journal of Clinical Endocrinology & Metabolism, 2022

Context Diabetes and cardiovascular diseases are common among men with Klinefelter syndrome (KS) ... more Context Diabetes and cardiovascular diseases are common among men with Klinefelter syndrome (KS) and contribute to high morbidity and mortality. Objective To determine if cardiometabolic-related diagnoses are more prevalent among youth with KS than matched controls in a large population-based cohort. Methods Secondary data analysis of electronic health records from 6 pediatric institutions in the United States (PEDSnet). Patients included all youth with KS in the database (n = 1080) and 4497 youth without KS matched for sex, age (mean 13 years at last encounter), year of birth, race, ethnicity, insurance, site, and duration of care (mean 7 years). The main outcome measures were prevalence of 5 cardiometabolic-related outcomes: overweight/obesity, dyslipidemia, dysglycemia, hypertension, and liver dysfunction. Results The odds of overweight/obesity (OR 1.6; 95% CI 1.4-1.8), dyslipidemia (3.0; 2.2-3.9), and liver dysfunction (2.0; 1.6-2.5) were all higher in KS than in controls. Adjus...

Research paper thumbnail of Communicating With Vaccine-Hesitant Parents: A Narrative Review

Academic Pediatrics, 2021

Although vaccines are considered one of the most effective medical interventions to prevent vacci... more Although vaccines are considered one of the most effective medical interventions to prevent vaccine preventable disease and associated morbidity and mortality, a number of recent outbreaks are threatening the gains made by vaccines. Vaccine hesitancy is a key driver of vaccine refusal and has been associated with vaccine preventable outbreaks. While parents seek information from many sources to inform their vaccine decision-making process, they continue to view their child's pediatric provider as a trusted source of vaccine information. The communication that occurs between a provider and parent with regards to vaccination is critical in reducing concerns and nudging parents toward vaccine acceptance. However, vaccine-hesitant parents raise issues in this encounter that many providers feel ill-equipped to answer, due to lack of training on evidence-based communication strategies. We focus on promising approaches related to patient-provider communication within the context of vaccination. We found empirical evidence that the use of a presumptive format to recommend vaccines, motivational interviewing, and tailoring information to increase message salience are approaches that can positively affect vaccine acceptance. As providers continue to serve as important influencers in the vaccine decision-making process, it is evident that there is a need to continue to identify evidence-based, and practically implementable approaches to mitigate parental vaccine hesitancy. Providers play a key role in improving coverage rates, and therefore it is paramount to seek ways to improve how providers communicate about vaccines.

Research paper thumbnail of Developing Computable Phenotypes of Pediatric Chronic Conditions in PEDSnet

Research paper thumbnail of Behavioral Health Diagnoses in Youth with Differences of Sex Development or Congenital Adrenal Hyperplasia Compared with Controls: A PEDSnet Study

The Journal of Pediatrics, 2021

OBJECTIVE To evaluate the odds of a behavioral health diagnosis among youth with a difference of ... more OBJECTIVE To evaluate the odds of a behavioral health diagnosis among youth with a difference of sex development (DSD) or congenital adrenal hyperplasia (CAH) compared with matched controls in the PEDSnet database. STUDY DESIGN All youth with a diagnosis of DSD (n=1,216) or CAH (n=1,647) and at least one outpatient encounter were extracted from the PEDSnet database and propensity-score matched on 8 variables (1:4) to controls (n=4,864 and 6,588, respectively) using multivariable logistic regression. The likelihood of having behavioral health diagnoses was examined using generalized estimating equations. RESULTS Youth with a DSD had higher odds of a behavioral health diagnosis (OR: 1.7 [95% CI: 1.4, 2.1], p<0.0001) and neurodevelopmental diagnosis (1.7 [95% CI: 1.4, 2.0], P < .0001 compared with matched controls. Youth with CAH did not have increased odds of a behavioral health diagnosis (1.0 [95% CI: 0.9, 1.1], p=0.9) compared with matched controls but did have higher odds of developmental delay (1.8 [95% CI: 1.4, 2.4], p<0.0001). CONCLUSIONS Youth with a DSD diagnosis have higher odds of a behavioral health or neurodevelopmental diagnosis compared with matched controls. Youth with CAH have a higher odds of developmental delay, highlighting the need for screening in both groups.

Research paper thumbnail of A Longitudinal Comparison of Alternatives to Body Mass Index Z-Scores for Children with Very High Body Mass Indexes

The Journal of Pediatrics, 2021

OBJECTIVE The current CDC BMI z-scores are inaccurate for BMIs ≥ 97th percentile. We, therefore, ... more OBJECTIVE The current CDC BMI z-scores are inaccurate for BMIs ≥ 97th percentile. We, therefore, considered 5 alternatives that can be used across the entire BMI distribution: modified BMIz, %CDC95th percentile, extended BMIz, %median, and %median adjusted for the dispersion of BMIs. STUDY DESIGN We illustrate the behavior of the metrics among children of different ages and BMIs. We then compared the longitudinal tracking of the BMI metrics in electronic health record (EHR) data from 1.17 million children in PEDSnet using the intraclass correlation coefficient (ICC) to determine if one metric was superior. RESULTS Our examples show that using CDC BMIz for high BMIs can result in nonsensical results. All alternative metrics showed higher tracking than CDC BMIz among children with obesity. Of the alternatives, modified BMIz performed poorly among children with severe obesity, and %median performed poorly among children who did not have obesity at their first visit. The highest ICCs were generally seen for extended BMIz, adjusted %median, and %CDC95th percentile. CONCLUSIONS Based on the examples of differences in the BMI metrics, the longitudinal tracking results, and current familiarity BMI z-scores and percentiles, extended BMIz and extended BMI percentile may be suitable replacements for the current z-scores and percentiles. These metrics are identical to those in the CDC growth charts for BMIs < 95th percentile and are superior for very high BMIs. Researchers' familiarity with the current CDC z-scores and clinicians with the CDC percentiles may ease the transition to the extended BMI scale.

Research paper thumbnail of Behavioral Health Diagnoses in Youth with Gender Dysphoria Compared with Controls: A PEDSnet Study

The Journal of Pediatrics, 2021

OBJECTIVE To assess the odds of a psychiatric or neurodevelopmental diagnosis among youth with a ... more OBJECTIVE To assess the odds of a psychiatric or neurodevelopmental diagnosis among youth with a diagnosis of gender dysphoria compared with matched controls in a large electronic health record dataset from six pediatric health systems, PEDSnet. We hypothesized that youth with gender dysphoria would have higher odds of having psychiatric and neurodevelopmental diagnoses than controls. STUDY DESIGN All youth with a diagnosis of gender dysphoria (n=4,173 age at last visit 16.2 + 3.4) and at least one outpatient encounter were extracted from the PEDSnet database and propensity-score matched on 8 variables to controls without gender dysphoria (n=16,648, age at last visit 16.2 + 4.8) using multivariable logistic regression. The odds of having psychiatric and neurodevelopmental diagnoses were examined using generalized estimating equations. RESULTS Youth with gender dysphoria had higher odds of psychiatric (OR: 4.0 [95% CI: 3.8, 4.3] P < .0001) and neurodevelopmental diagnoses (1.9 [1.7, 2.0], p<0.0001). Youth with gender dysphoria were more likely to have a diagnosis across all psychiatric disorder sub-categories, with particularly high odds of mood disorder (7.3 [6.8, 7.9], p<0.0001) and anxiety (5.5 [5.1, 5.9], p<0.0001). Youth with gender dysphoria had a greater odds of autism spectrum disorder (2.6, [2.2, 3.0], p<0.0001). CONCLUSIONS Youth with gender dysphoria at large pediatric health systems have greater odds of psychiatric and several neurodevelopmental diagnoses compared with youth without gender dysphoria. Further studies are needed to evaluate changes in mental health over time with access to gender affirming care.

Research paper thumbnail of Development and evaluation of an EHR‐based computable phenotype for identification of pediatric Crohn's disease patients in a National Pediatric Learning Health System

Learning Health Systems, 2020

ObjectivesTo develop and evaluate the classification accuracy of a computable phenotype for pedia... more ObjectivesTo develop and evaluate the classification accuracy of a computable phenotype for pediatric Crohn's disease using electronic health record data from PEDSnet, a large, multi‐institutional research network and Learning Health System.Study DesignUsing clinician and informatician input, algorithms were developed using combinations of diagnostic and medication data drawn from the PEDSnet clinical dataset which is comprised of 5.6 million children from eight U.S. academic children's health systems. Six test algorithms (four cases, two non‐cases) that combined use of specific medications for Crohn's disease plus the presence of Crohn's diagnosis were initially tested against the entire PEDSnet dataset. From these, three were selected for performance assessment using manual chart review (primary case algorithm, n = 360, primary non‐case algorithm, n = 360, and alternative case algorithm, n = 80). Non‐cases were patients having gastrointestinal diagnoses other than ...

Research paper thumbnail of AutoPEWS: Automating Pediatric Early Warning Score Calculation Improves Accuracy Without Sacrificing Predictive Ability

Pediatric Quality & Safety, 2020

Introduction: Pediatric early warning scores (PEWS) identify hospitalized children at risk for de... more Introduction: Pediatric early warning scores (PEWS) identify hospitalized children at risk for deterioration. Manual calculation is prone to human error. Electronic health records (EHRs) enable automated calculation, removing human error. This study's objective was to compare the accuracy of automated EHR-based PEWS calculation (AutoPEWS) to manual calculation and evaluate the non-inferiority of AutoPEWS in predicting deterioration. Methods: We performed a retrospective cohort study inclusive of non-intensive care unit inpatients at a freestanding children's hospital over 4.5 months in Fall 2018. AutoPEWS mapped the historical manual PEWS scoring rubric to frequently used EHR documentation. We determined accuracy by comparing the expected respiratory subset score based on the current respiratory rate to the actual respiratory score of AutoPEWS and the manual PEWS. The agreement was determined using kappa statistics. We used predicted probabilities from a generalized linear mixed model to calculate areas under the curve for each combination of scores (AutoPEWS, manual) and deterioration outcome (rapid response team activation, unplanned intensive care unit transfer, critical deterioration event). We compared the adjusted difference in areas under the curves between the scores. Non-inferiority was defined as a difference of <0.05. Results: There were 23,514 total PEWS representative of 5,384 patients. AutoPEWS respiratory scores were 99.97% accurate, while the manual PEWS respiratory scores were 86% accurate. AutoPEWS were higher overall than the manual PEWS (mean 0.65 versus 0.34). They showed a fair-to-good agreement (weighted kappa 0.42). Non-inferiority of AutoPEWS compared with the manual PEWS was demonstrated for all deterioration outcomes. Conclusions: Automation of PEWS calculation improved accuracy without sacrificing predictive ability.

Research paper thumbnail of Be inFLUential: Evaluation of a multifaceted intervention to increase influenza vaccination rates among pediatric inpatients

Vaccine, 2019

Background and Objective: Annual influenza vaccination is recommended for individual 6 months of ... more Background and Objective: Annual influenza vaccination is recommended for individual 6 months of age, yet vaccination rates remain below national targets in the US. Hospitalization provides another medical setting for influenza vaccination, but the effectiveness of inpatient interventions has not been well studied. Our objective was to evaluate the effectiveness of a multifaceted intervention to increase influenza vaccination rates among pediatric inpatients. Methods: We conducted a pre-post interventional study on medical inpatient units at Children's Hospital Colorado from September 2016-April 2017 (pre-intervention) and September 2017-April 2018 (intervention). The intervention targeted nurses (web-based education modules, huddles and reminders) and providers (vaccination lists in the electronic health record, reminders, vaccination reports and financial incentives for residents). Outcomes were influenza vaccine ordering rates, and influenza vaccination rates at discharge. We analyzed data using descriptive statistics, bivariate and logistic regression. Results: Among 4,050 inpatients in 2016-2017 and 4,523 inpatients in 2017 aged 6 months, vaccination status was documented for 2,902/4,050 (71.7%) and 3,431/4,523 (75.9%) children aged > 6 months of age hospitalized during the study period. The vaccine ordering rate among eligible children was 28.8% in the pre-intervention season versus 50.2% in the intervention season (p < 0.001). The intervention was associated with 1.23 (95% CI 1.11-1.35) times higher odds of appropriate vaccination screening on admission, 2.27 (95% CI 2.01-2.56) times higher odds of a vaccination being ordered, and 1.39 (95% CI 1.27-1.53) times higher odds of a child being vaccinated against influenza at discharge (all p < 0.001). Residents (56%) and medical providers (39%) were more likely to order vaccines compared with nurses (5%), p = 0.014). Conclusion: A multifaceted intervention targeting nurses, residents and providers comprising education, visual reminders, vaccination reports and financial incentives is an effective way of improving influenza vaccine ordering, resulting in higher inpatient influenza vaccination rates.

Research paper thumbnail of Outcomes for Pediatric Asthmatic Inpatients After Implementation of an Emergency Department Dexamethasone Treatment Protocol

Hospital Pediatrics, 2019

OBJECTIVES: Evidence supports using dexamethasone for mild-to-moderate asthma exacerbations in th... more OBJECTIVES: Evidence supports using dexamethasone for mild-to-moderate asthma exacerbations in the emergency department, but the effectiveness of dexamethasone versus prednisone for asthmatic patients who are hospitalized is unclear. Our aim was to compare outcomes for inpatients before and after our emergency department’s adoption of dexamethasone for the treatment of acute asthma exacerbations. METHODS: In this single-center retrospective cohort study, we employed interrupted time series analyses to control for secular trends while evaluating our outcomes of length of stay, total inflation-adjusted hospital charges, and ICU transfer rates for patients admitted with asthma. RESULTS: Data were analyzed over 36 months (January 2014–April 2017) and included 1015 subjects (606 in the preprotocol change [pre-PC] group and 409 in the postprotocol change [post-PC] group). In the pre-PC group, prednisone only was used in 96% of subjects. In the post-PC group, prednisone only was used in 7%...

Research paper thumbnail of Effects of age, sex, race/ethnicity, and allergy status in obesity‐related pediatric asthma

Pediatric Pulmonology, 2019

RationaleObesity in children increases the risk for new asthma. How age, sex, race/ethnicity, and... more RationaleObesity in children increases the risk for new asthma. How age, sex, race/ethnicity, and allergy status affect the relationship between obesity and asthma is unclear. This study describes the relationship between high body mass index (BMI) and incident asthma.MethodsWe conducted a retrospective cohort study to compare asthma incidence among normal weight, overweight, and obese 2 to 6, 7 to 11, and 12 to 17 year olds to define the effects of sex, race/ethnicity, and allergy status. Weight status was determined at baseline and asthma incidence was defined as ≥2 asthma encounters and ≥1 asthma prescriptions. We used multivariable Poisson regression to estimate adjusted incident asthma rates and risk ratios.ResultsData from 192 843 2 to 6 year olds, 157 284 7 to 11 year olds, and 157 369 12 to 17 year olds were included. The relative risks (95% confidence interval [CI]) of new asthma among obese children in 2 to 6 year olds, 7 to 11 year olds, and 12 to 17 year olds were 1.25 (...

Research paper thumbnail of Development of a Values-Tailored Web-Based Intervention for New Mothers to Increase Infant Vaccine Uptake (Preprint)

BACKGROUND Vaccine hesitancy among parents leads to childhood under-vaccination and outbreaks of ... more BACKGROUND Vaccine hesitancy among parents leads to childhood under-vaccination and outbreaks of vaccine preventable disease. Because reasons for vaccine hesitancy are diverse, there is often not enough time during regular clinical visits for medical providers to adequately address all the concerns parents have. Providing individually tailored vaccine information via the internet prior to a clinical visit may be a good mechanism for effectively allaying parents vaccination concerns while also being time efficient. Including tailoring based on values is a promising, but untested, approach to message creation. OBJECTIVE To describe the process by which we developed a web-based intervention that is being used in an ongoing randomized, controlled trial aimed at improving the timeliness of infant vaccination by reducing parental vaccine hesitancy. METHODS Development of the intervention incorporated evidence-based health behavior theories. A series of interviews, surveys and feedback ses...

Research paper thumbnail of Neurologic Manifestations of Influenza A(H3N2) Infection in Children During the 2016–2017 Season

Journal of the Pediatric Infectious Diseases Society, 2018

Among 182 children with influenza infection in 2016–2017, 18% had neurologic manifestations of in... more Among 182 children with influenza infection in 2016–2017, 18% had neurologic manifestations of influenza (NMI), including seizures and encephalopathy; 85% of these children were infected with the H3N2 strain. Children with NMI had 3.5-times-higher odds of having a neurologic comorbidity than those without NMI and a 10-fold increased odds of hospitalization.

Research paper thumbnail of Exploring Facilitators and Barriers to Initiation and Completion of the Human Papillomavirus (HPV) Vaccine Series among Parents of Girls in a Safety Net System

International Journal of Environmental Research and Public Health, 2018

Objective: To assess, among parents of predominantly minority, low-income adolescent girls who ha... more Objective: To assess, among parents of predominantly minority, low-income adolescent girls who had either not initiated (NI) or not completed (NC) the HPV vaccine series, attitudes and other factors important in promoting the series, and whether attitudes differed by language preference. Design/Methods: From August 2013-October 2013, we conducted a mail survey among parents of girls aged 12-15 years randomly selected from administrative data in a Denver safety net system; 400 parents from each group (NI and NC) were targeted. Surveys were in English or Spanish. Results: The response rate was 37% (244/660; 140 moved or gone elsewhere; 66% English-speaking, 34% Spanish-speaking). Safety attitudes of NIs and NCs differed, with 40% NIs vs. 14% NCs reporting they thought HPV vaccine was unsafe (p < 0.0001) and 43% NIs vs. 21% NCs that it may cause long-term health problems (p < 0.001). Among NCs, 42% reported they did not know their daughter needed more shots (English-speaking, 20%, Spanish-speaking 52%) and 39% reported that "I wasn't worried about the safety of the HPV vaccine before, but now I am" (English-speaking, 23%, Spanish-speaking, 50%). Items rated as very important among NIs in the decision regarding vaccination included: more information about safety (74%), more information saying it prevents cancer (70%), and if they knew HPV was spread mainly by sexual contact (61%). Conclusions: Safety concerns, being unaware of the need for multiple doses, and low perceived risk of infection remain significant barriers to HPV vaccination for at-risk adolescents. Some parents' safety concerns do not appear until initial vaccination.

Research paper thumbnail of Parental Perception of Comorbidities in Children With Dravet Syndrome

Pediatric Neurology, 2017

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service... more This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Research paper thumbnail of Being Overweight or Obese and the Development of Asthma

Pediatrics, 2018

OBJECTIVES: Adult obesity is linked to asthma cases and is estimated to lead to 250 000 new cases... more OBJECTIVES: Adult obesity is linked to asthma cases and is estimated to lead to 250 000 new cases yearly. Similar incidence and attributable risk (AR) estimates have not been developed for children. We sought to describe the relationship between overweight and obesity and incident asthma in childhood and quantify AR statistics in the United States for overweight and obesity on pediatric asthma. METHODS: The PEDSnet clinical data research network was used to conduct a retrospective cohort study (January 2009–December 2015) to compare asthma incidence among overweight and/or obese versus healthy weight 2- to 17-year-old children. Asthma incidence was defined as ≥2 encounters with a diagnosis of asthma and ≥1 asthma controller prescription. Stricter diagnostic criteria involved confirmation by spirometry. We used multivariable Poisson regression analyses to estimate incident asthma rates and risk ratios and accepted formulas for ARs. RESULTS: Data from 507 496 children and 19 581 972 e...

Research paper thumbnail of Examining strategies for improving healthcare providers’ communication about adolescent HPV vaccination: evaluation of secondary outcomes in a randomized controlled trial

Human Vaccines & Immunotherapeutics, 2019

There is a critical need for campaigns and interventions to increase rates of human papillomaviru... more There is a critical need for campaigns and interventions to increase rates of human papillomavirus (HPV) vaccination among U.S. adolescents. Healthcare providers are key stakeholders in parents' HPV vaccine decision-making. The current study presents the evaluation of secondary outcomes in a multicomponent communication-based intervention to improve healthcare providers' communication about HPV vaccination. Evaluation was conducted via surveys of providers participating in a 12-month randomized controlled trial. Findings suggest use of communication components (combined use of the presumptive approach [PA] with all patients, and motivational interviewing and a fact sheet with vaccine hesitant parents) contributed to providers in the intervention group reporting higher perceived levels of parental HPV vaccine acceptance than control providers, as well as increased vaccination rates in the intervention arm in the main RCT.

Research paper thumbnail of Noninitiation and Noncompletion of HPV Vaccine Among English- and Spanish-Speaking Parents of Adolescent Girls: A Qualitative Study

Academic pediatrics, Jan 28, 2017

The Advisory Committee on Immunization Practices recommends routine human papillomavirus (HPV) va... more The Advisory Committee on Immunization Practices recommends routine human papillomavirus (HPV) vaccination for female adolescents aged 11 to 12 years, yet vaccination rates remain low. We conducted a qualitative study to understand English- and Spanish-speaking parents' reasons for noninitiation or noncompletion of the HPV vaccine series for their daughters. Parents of female adolescents aged 12 to 15 years who had not initiated or not completed the HPV vaccine series were identified through administrative data in 2 large urban safety net health care systems in Colorado. Focus groups and in-depth interviews were conducted with English-speaking parents and in-depth interviews were conducted with Spanish-speaking parents. All data were recorded, transcribed, and analyzed for thematic content by experienced analysts using established qualitative content analysis techniques. Forty-one parents participated in the study. Thirty parents participated in individual interviews and 11 pare...

Research paper thumbnail of Impact of Nonmedical Vaccine Exemption Policies on the Health and Economic Burden of Measles

Academic Pediatrics, 2017

Research paper thumbnail of 1108Timing of Information-Seeking about Childhood Vaccines for Pregnant and Recently-Delivered Women

Open Forum Infectious Diseases, 2014