Miguel A Ruiz | Universidad Autónoma de Madrid (original) (raw)

Papers by Miguel A Ruiz

Research paper thumbnail of Patient satisfaction with remote monitoring of cardiac implantable electronic devices: the Valiosa questionnaire

BMC Health Services Research, 2020

Background Remote monitoring of cardiac implantable electronic devices (CIEDs) has demonstrated s... more Background Remote monitoring of cardiac implantable electronic devices (CIEDs) has demonstrated substantial benefits. Treatment guidelines have therefore endorsed its use and is being increasingly adopted in the clinical setting, but the level of satisfaction they convey remains still unknown. We developed and validated a questionnaire to measure patient satisfaction with remote monitoring using Medtronic CareLink® Network and assessed its internal reliability and dimensional validity. Methods After a thorough literature review, cognitive debriefing of 18 patients, and an expert panel discussion, a 30-item instrument was proposed and grouped into 5 dimensions (items): 1- Information on cardiac condition (3), 2- Device convenience (3), 3- Transmission process (6), 4- Satisfaction with medical monitoring (8), and 5- General opinions (10). Correlation with the visual analog scale (VAS), overall health related quality of life (HRQoL) measured by the EuroQoL-5D accompanied by the VAS as ...

Research paper thumbnail of Additional file 1 of Patient satisfaction with remote monitoring of cardiac implantable electronic devices: the Valiosa questionnaire

Additional file 1. VALIOSA questionnaire, Spanish version.

Research paper thumbnail of Adaptación cultural al español y validación de la escala GSFQ (Gastrointestinal Short Form Questionnaire)

Gastroenterología y Hepatología, 2009

Objective: To describe the process followed for the cultural and psychometric adaptation (validat... more Objective: To describe the process followed for the cultural and psychometric adaptation (validation) to Spanish of the Gastrointestinal Short Form Questionnaire (GSFQ), used to measure the interference of symptoms of gastroesophageal reflux disease GERD and to report the psychometric properties of this instrument. Material and methods: The adaptation process was supervised by a five-member expert panel. After forward and backward translations in duplicate, a Spanish version was obtained, which was administered to two samples; a five-patient pilot sample to check comprehension and face validity, and a 4,000-patient sample to check structural validity (factor analysis and reliability), construct validity, and discriminative validity. Results: The questionnaire showed a unique dimension that matched that of the original questionnaire. Reliability was high (alpha ¼ 0.83), and the correlation between even-odd items was good (r ¼ 0.69). The overall score correlated with generic health-related quality of life measures evaluated by the EQ-5D tariff (r ¼ 0.499) and VAS (r ¼ À0.481). The scale discriminated between GERD severity levels (po0.008) as measured by the Savary-Miller scale, except for the most severe level with respect to the levels immediately below. The questionnaire was able to detect differences between diverse concomitant diseases and antecedents. Sensitivity with respect to the GERD clinician criterion was 60.5% and specificity was 68.3%. Normative comparison scaling values are reported. Conclusions: The results show acceptable psychometric properties. A new instrument to assess the interference of GERD symptoms is thus available to health professionals. This instrument takes the patient's perspective into account.

Research paper thumbnail of Emotion and Motivation Self-Regulation Questionnaire

Research paper thumbnail of Learning-related motives and the perception of the motivational quality of the learning environment

Psicothema, 2007

How can university students' motivation to learn be enhanced? To achieve this, first we shoul... more How can university students' motivation to learn be enhanced? To achieve this, first we should know: What motivational value do students attribute to each particular component of learning environments? To which degree is this value mediated by students' motivational orientations? To respond to these questions, 1,166 university students were administered two questionnaires, one for assessing their motivational orientations and the other, their perceptions of the characteristics of their learning environment. Descriptive and multiple-regression analyses were performed to respond to the questions. Results support predictions concerning both questions, suggesting that motivation modulates the motivational effect of learning environments.

Research paper thumbnail of Structural Validity of a 14-Item Abridged Version of the Menopause Cervantes Health-Related-Quality-Of-Life Scale

Value in Health, 2013

health, Mental health, Sexuality, and Couple Relationship, being the first dimension composed by ... more health, Mental health, Sexuality, and Couple Relationship, being the first dimension composed by 3 sub-dimensions: vasomotor symptoms, health, and Aging. Goodness-of-fit statistics were better than those of the extended version (chisquare/df= 2.130, AGFI= 0.859, PCFI= 0.919, RMSEA= 0.044). Internal consistency was good (Cronbach's alpha= 0.830) but slightly lower than that of the original scale. Correlations between extended and reduced subscales was high and significant in all cases (p< 0.001), ranging from r= 0.857 for Aging to r= 0.971 for Vasomotor symptoms. ConClusions: The Cervantes scale may be reduced to an abridged version of 14-item (Cervantes-SF) which maintains the original dimensional structure and psychometric properties. This version extends 45% of the original length, being faster to apply and making it specially suitable for routine medical practice.

Research paper thumbnail of PPN8 the MOS-SHORT-FORM-12 (SF-12) as a Measure of Health-Related Quality of Life in Neuropathic Pain (Nep) Patients: Reliability, Concurrent and Discriminant Validity

Value in Health, 2005

surgery in the Dutch health care setting. The hypothesis was that higher drug costs for the trama... more surgery in the Dutch health care setting. The hypothesis was that higher drug costs for the tramadol/paracetamol combination were offset by a reduction of costs associated with the treatment of side-effects. METHODS: Decision analysis was used to model the health economic outcomes. A cost-minimisation approach was appropriate since the efficacy of the two treatments proved to be the same in the dosages used. Probabilities, resource utilisation data, and unit costs were obtained from published literature, Delphi panel and official price and tariff lists (Dutch costing manual). The perspective taken was that of the health insurance. RESULTS: The study showed that six days' postoperative treatment with the tramadol/paracetamol combination is cost saving compared with codeine plus paracetamol and has fewer sideeffects (costs for tramadol/paracetamol: €42.46; codeine/paracetamol: €43.56). Sensitivity analyses confirmed the robustness of the model, with the tramadol/paracetamol combination being similarly expensive or becoming the dominant strategy in 28 off 34 scenarios calculated. CONCLUSION: The results show that postoperative pain therapy with the tramadol/paracetamol combination is equally or less expensive and has fewer side effects compared with a codeine/paracetamol combination, resulting in favourable clinical and economic benefits.

Research paper thumbnail of PAR11 Validity Studies and Satisfaction Threshold of the Arthritis Treatment Satisfaction Questionnaire (Arts)

Research paper thumbnail of PND13 Psicometric Properties of the Treatment Satisfaction with Medicines Questionnaire (Satmed-Q) in Patients with Refractory Epilepsy

Research paper thumbnail of Factores/perfiles de los motivos de abandono universitario en la universidad politécnica de Madrid

El problema del abandono universitario sobrepasa el ambito educativo incidiendo en el desarrollo ... more El problema del abandono universitario sobrepasa el ambito educativo incidiendo en el desarrollo economico y social del pais. Para un estudiante, la decision de continuar o abandonar los estudios supone valorar y tomar una decision determinante sobre su futuro. Objetivo. Este trabajo pretende estudiar y comparar las estructuras factoriales de dos escalas paralelas de motivos (para estudiantes que continuan activos o abandonan) incluidas en la encuesta elaborada en el proyecto Gestion Universitaria Integral del Abandono (GUIA) y comprobar si existen, dentro de ellos, subgrupos diferenciados de motivos. Metodologia. Los participantes fueron los alumnos matriculados en la Universidad Politecnica de Madrid (UPM) en las cohortes 2010-11, 2011-12 y 2012-13. Se valoro la estructura de las respuestas mediante Analisis Factorial Exploratorio (AFE) y se compararon las estructuras mas plausibles mediante Analisis Factorial Confirmatorio (AFC). Los modelos fueron seleccionados utilizando los in...

Research paper thumbnail of Spanish university assessment practices: examination tradition with diversity by faculty

Assessment & Evaluation in Higher Education, 2018

His main research topics are Formative Assessment and teachers' decision making processes.

Research paper thumbnail of Modelo Estructural Causal De La Permanencia En La Universidad Politécnica De Madrid

El analisis de las causas de la permanencia/abandono de los estudios universitarios es un tema pr... more El analisis de las causas de la permanencia/abandono de los estudios universitarios es un tema prioritario en investigacion educativa. Se dispone de importantes referencias teoricas.

Research paper thumbnail of PCN67 Prevention of Chemotherapy Induced Nausea and Vomiting with 5HT3 Receptor Antagonists and Health Related Qol

Research paper thumbnail of Confirmatory factor analysis on the dimensions of commitment to the organization

Research paper thumbnail of Mapping of the FKSI specific kidney disease measure onto three generic preference-based measures to generate utility values

General Internal Medicine and Clinical Innovations

Background Chronic kidney disease (CKD) is a progressive and irreversible loss of renal function,... more Background Chronic kidney disease (CKD) is a progressive and irreversible loss of renal function, due to different causes (diabetic nephropathy, hypertension, glomerulonephritis, hereditary renal failure, pharmacological poisoning, etc.) that lead to the kidneys losing their ability to eliminate waste, concentrate urine and preserve electrolytes in the blood, progressing towards the total loss of kidney function. At advanced stages, usual treatments are kidney transplantation, hemodialysis and peritoneal dialysis, all of which have a notable impact on daily life and the quality of life of patients. The Spanish society of nephrology (SEN) [1] reported a CKD prevalence of 1,234 patients per million population (pmp) in 2016, varying between 1,752 pmp in the age group between 45 and 64 years and 2,888 pmp in people over 75 years. Etiology is known to vary with age, being vascular causes more frequent in patients older than 75 years, those caused by diabetes in the 65-74 age group, polycystic disease in the 45-65 age group and hereditary origin in ages less than 45 years. The prevalence of renal replacement therapy is 521 pmp in hemodialysis, 67 pmp in peritoneal dialysis and 647 pmp in renal transplant. The percentage of mortality in 2016 was 8%, being the most frequent causes cardiovascular problems and associated infections. Median survival is 6.3 years, with a 5 years' survival percentage of 57% [2]. Given the great impact of CKD on patient's wellbeing, it is important to bring forward indicators capable of quantifying the patient's vital state, towards an adequate therapeutic follow-up and, in particular, those reported by the patient. One of the patient reported outcome measures (PROM) most widely used as an indicator of the patient health status is Health Related Quality of Life (HRQoL), a measure that reflects the patient's subjective perception (without intervention of the clinical staff) in a repertoire of dimensions such as: emotional state, level of pain, physical functioning, social functioning and general perception of one's own health [3]. HRQoL is a particularly important output due to its diagnostic capabilities, since it has been shown to be directly related to mortality, hospitalization and consumption of clinical resources [4]. HRQoL has also shown relationship with other specific disease indicators, adding

Research paper thumbnail of Learning-related motives and the percepption of the motivational quality of the learning environment. = Motivaciones relacionadas con el aprendizaje y percepción del valor del entorno instruccional

Research paper thumbnail of Path analysis models versus latent variable models: Examples from educational and health approaches

Research paper thumbnail of Diez Años del Programa Ciudades Amigas de la Infancia

Research paper thumbnail of Análisis factorial confirmativo de las dimensiones del compromiso con la organización

El presente artículo propone validar el constructo del compromiso con la organización como un con... more El presente artículo propone validar el constructo del compromiso con la organización como un concepto multidimensional, tomando como punto de partida las tres perspectivas teóricas desde las que tradicionalmente se estudia el compromiso: la afectiva, la normativa y la calculada. Partiendo de las escalas propuestas por Allen y Meyer (1990) y Meyer, Allen y Smith (1993), se comprara el ajuste de cinco modelos mediante análisis factorial confirmatorio. Los resultados demuestran que el modelo de cuatro factores obtiene el mejor ajuste. Este cuarto factor queda justificado teóricamente, ya que la dimensión calculada se puede desdoblar en dos aspectos: uno que hace referencia el elevado coste de un eventual abandono y otro que hace referencia a la percepción de alternativas de empleo. Se discute que los resultados apoyan los hallazgos de McGee y Ford (1987), pero plantean interrogantes sobre su relación con las otras facetas del compromiso, con los factores antecedentes del compromiso y ...

Research paper thumbnail of Burden of menopausal vasomotor symptoms on work productivity and daily-activity in a cohort of peri/post-menopausal women in daily practice in Spain

Research paper thumbnail of Patient satisfaction with remote monitoring of cardiac implantable electronic devices: the Valiosa questionnaire

BMC Health Services Research, 2020

Background Remote monitoring of cardiac implantable electronic devices (CIEDs) has demonstrated s... more Background Remote monitoring of cardiac implantable electronic devices (CIEDs) has demonstrated substantial benefits. Treatment guidelines have therefore endorsed its use and is being increasingly adopted in the clinical setting, but the level of satisfaction they convey remains still unknown. We developed and validated a questionnaire to measure patient satisfaction with remote monitoring using Medtronic CareLink® Network and assessed its internal reliability and dimensional validity. Methods After a thorough literature review, cognitive debriefing of 18 patients, and an expert panel discussion, a 30-item instrument was proposed and grouped into 5 dimensions (items): 1- Information on cardiac condition (3), 2- Device convenience (3), 3- Transmission process (6), 4- Satisfaction with medical monitoring (8), and 5- General opinions (10). Correlation with the visual analog scale (VAS), overall health related quality of life (HRQoL) measured by the EuroQoL-5D accompanied by the VAS as ...

Research paper thumbnail of Additional file 1 of Patient satisfaction with remote monitoring of cardiac implantable electronic devices: the Valiosa questionnaire

Additional file 1. VALIOSA questionnaire, Spanish version.

Research paper thumbnail of Adaptación cultural al español y validación de la escala GSFQ (Gastrointestinal Short Form Questionnaire)

Gastroenterología y Hepatología, 2009

Objective: To describe the process followed for the cultural and psychometric adaptation (validat... more Objective: To describe the process followed for the cultural and psychometric adaptation (validation) to Spanish of the Gastrointestinal Short Form Questionnaire (GSFQ), used to measure the interference of symptoms of gastroesophageal reflux disease GERD and to report the psychometric properties of this instrument. Material and methods: The adaptation process was supervised by a five-member expert panel. After forward and backward translations in duplicate, a Spanish version was obtained, which was administered to two samples; a five-patient pilot sample to check comprehension and face validity, and a 4,000-patient sample to check structural validity (factor analysis and reliability), construct validity, and discriminative validity. Results: The questionnaire showed a unique dimension that matched that of the original questionnaire. Reliability was high (alpha ¼ 0.83), and the correlation between even-odd items was good (r ¼ 0.69). The overall score correlated with generic health-related quality of life measures evaluated by the EQ-5D tariff (r ¼ 0.499) and VAS (r ¼ À0.481). The scale discriminated between GERD severity levels (po0.008) as measured by the Savary-Miller scale, except for the most severe level with respect to the levels immediately below. The questionnaire was able to detect differences between diverse concomitant diseases and antecedents. Sensitivity with respect to the GERD clinician criterion was 60.5% and specificity was 68.3%. Normative comparison scaling values are reported. Conclusions: The results show acceptable psychometric properties. A new instrument to assess the interference of GERD symptoms is thus available to health professionals. This instrument takes the patient's perspective into account.

Research paper thumbnail of Emotion and Motivation Self-Regulation Questionnaire

Research paper thumbnail of Learning-related motives and the perception of the motivational quality of the learning environment

Psicothema, 2007

How can university students' motivation to learn be enhanced? To achieve this, first we shoul... more How can university students' motivation to learn be enhanced? To achieve this, first we should know: What motivational value do students attribute to each particular component of learning environments? To which degree is this value mediated by students' motivational orientations? To respond to these questions, 1,166 university students were administered two questionnaires, one for assessing their motivational orientations and the other, their perceptions of the characteristics of their learning environment. Descriptive and multiple-regression analyses were performed to respond to the questions. Results support predictions concerning both questions, suggesting that motivation modulates the motivational effect of learning environments.

Research paper thumbnail of Structural Validity of a 14-Item Abridged Version of the Menopause Cervantes Health-Related-Quality-Of-Life Scale

Value in Health, 2013

health, Mental health, Sexuality, and Couple Relationship, being the first dimension composed by ... more health, Mental health, Sexuality, and Couple Relationship, being the first dimension composed by 3 sub-dimensions: vasomotor symptoms, health, and Aging. Goodness-of-fit statistics were better than those of the extended version (chisquare/df= 2.130, AGFI= 0.859, PCFI= 0.919, RMSEA= 0.044). Internal consistency was good (Cronbach's alpha= 0.830) but slightly lower than that of the original scale. Correlations between extended and reduced subscales was high and significant in all cases (p< 0.001), ranging from r= 0.857 for Aging to r= 0.971 for Vasomotor symptoms. ConClusions: The Cervantes scale may be reduced to an abridged version of 14-item (Cervantes-SF) which maintains the original dimensional structure and psychometric properties. This version extends 45% of the original length, being faster to apply and making it specially suitable for routine medical practice.

Research paper thumbnail of PPN8 the MOS-SHORT-FORM-12 (SF-12) as a Measure of Health-Related Quality of Life in Neuropathic Pain (Nep) Patients: Reliability, Concurrent and Discriminant Validity

Value in Health, 2005

surgery in the Dutch health care setting. The hypothesis was that higher drug costs for the trama... more surgery in the Dutch health care setting. The hypothesis was that higher drug costs for the tramadol/paracetamol combination were offset by a reduction of costs associated with the treatment of side-effects. METHODS: Decision analysis was used to model the health economic outcomes. A cost-minimisation approach was appropriate since the efficacy of the two treatments proved to be the same in the dosages used. Probabilities, resource utilisation data, and unit costs were obtained from published literature, Delphi panel and official price and tariff lists (Dutch costing manual). The perspective taken was that of the health insurance. RESULTS: The study showed that six days' postoperative treatment with the tramadol/paracetamol combination is cost saving compared with codeine plus paracetamol and has fewer sideeffects (costs for tramadol/paracetamol: €42.46; codeine/paracetamol: €43.56). Sensitivity analyses confirmed the robustness of the model, with the tramadol/paracetamol combination being similarly expensive or becoming the dominant strategy in 28 off 34 scenarios calculated. CONCLUSION: The results show that postoperative pain therapy with the tramadol/paracetamol combination is equally or less expensive and has fewer side effects compared with a codeine/paracetamol combination, resulting in favourable clinical and economic benefits.

Research paper thumbnail of PAR11 Validity Studies and Satisfaction Threshold of the Arthritis Treatment Satisfaction Questionnaire (Arts)

Research paper thumbnail of PND13 Psicometric Properties of the Treatment Satisfaction with Medicines Questionnaire (Satmed-Q) in Patients with Refractory Epilepsy

Research paper thumbnail of Factores/perfiles de los motivos de abandono universitario en la universidad politécnica de Madrid

El problema del abandono universitario sobrepasa el ambito educativo incidiendo en el desarrollo ... more El problema del abandono universitario sobrepasa el ambito educativo incidiendo en el desarrollo economico y social del pais. Para un estudiante, la decision de continuar o abandonar los estudios supone valorar y tomar una decision determinante sobre su futuro. Objetivo. Este trabajo pretende estudiar y comparar las estructuras factoriales de dos escalas paralelas de motivos (para estudiantes que continuan activos o abandonan) incluidas en la encuesta elaborada en el proyecto Gestion Universitaria Integral del Abandono (GUIA) y comprobar si existen, dentro de ellos, subgrupos diferenciados de motivos. Metodologia. Los participantes fueron los alumnos matriculados en la Universidad Politecnica de Madrid (UPM) en las cohortes 2010-11, 2011-12 y 2012-13. Se valoro la estructura de las respuestas mediante Analisis Factorial Exploratorio (AFE) y se compararon las estructuras mas plausibles mediante Analisis Factorial Confirmatorio (AFC). Los modelos fueron seleccionados utilizando los in...

Research paper thumbnail of Spanish university assessment practices: examination tradition with diversity by faculty

Assessment & Evaluation in Higher Education, 2018

His main research topics are Formative Assessment and teachers' decision making processes.

Research paper thumbnail of Modelo Estructural Causal De La Permanencia En La Universidad Politécnica De Madrid

El analisis de las causas de la permanencia/abandono de los estudios universitarios es un tema pr... more El analisis de las causas de la permanencia/abandono de los estudios universitarios es un tema prioritario en investigacion educativa. Se dispone de importantes referencias teoricas.

Research paper thumbnail of PCN67 Prevention of Chemotherapy Induced Nausea and Vomiting with 5HT3 Receptor Antagonists and Health Related Qol

Research paper thumbnail of Confirmatory factor analysis on the dimensions of commitment to the organization

Research paper thumbnail of Mapping of the FKSI specific kidney disease measure onto three generic preference-based measures to generate utility values

General Internal Medicine and Clinical Innovations

Background Chronic kidney disease (CKD) is a progressive and irreversible loss of renal function,... more Background Chronic kidney disease (CKD) is a progressive and irreversible loss of renal function, due to different causes (diabetic nephropathy, hypertension, glomerulonephritis, hereditary renal failure, pharmacological poisoning, etc.) that lead to the kidneys losing their ability to eliminate waste, concentrate urine and preserve electrolytes in the blood, progressing towards the total loss of kidney function. At advanced stages, usual treatments are kidney transplantation, hemodialysis and peritoneal dialysis, all of which have a notable impact on daily life and the quality of life of patients. The Spanish society of nephrology (SEN) [1] reported a CKD prevalence of 1,234 patients per million population (pmp) in 2016, varying between 1,752 pmp in the age group between 45 and 64 years and 2,888 pmp in people over 75 years. Etiology is known to vary with age, being vascular causes more frequent in patients older than 75 years, those caused by diabetes in the 65-74 age group, polycystic disease in the 45-65 age group and hereditary origin in ages less than 45 years. The prevalence of renal replacement therapy is 521 pmp in hemodialysis, 67 pmp in peritoneal dialysis and 647 pmp in renal transplant. The percentage of mortality in 2016 was 8%, being the most frequent causes cardiovascular problems and associated infections. Median survival is 6.3 years, with a 5 years' survival percentage of 57% [2]. Given the great impact of CKD on patient's wellbeing, it is important to bring forward indicators capable of quantifying the patient's vital state, towards an adequate therapeutic follow-up and, in particular, those reported by the patient. One of the patient reported outcome measures (PROM) most widely used as an indicator of the patient health status is Health Related Quality of Life (HRQoL), a measure that reflects the patient's subjective perception (without intervention of the clinical staff) in a repertoire of dimensions such as: emotional state, level of pain, physical functioning, social functioning and general perception of one's own health [3]. HRQoL is a particularly important output due to its diagnostic capabilities, since it has been shown to be directly related to mortality, hospitalization and consumption of clinical resources [4]. HRQoL has also shown relationship with other specific disease indicators, adding

Research paper thumbnail of Learning-related motives and the percepption of the motivational quality of the learning environment. = Motivaciones relacionadas con el aprendizaje y percepción del valor del entorno instruccional

Research paper thumbnail of Path analysis models versus latent variable models: Examples from educational and health approaches

Research paper thumbnail of Diez Años del Programa Ciudades Amigas de la Infancia

Research paper thumbnail of Análisis factorial confirmativo de las dimensiones del compromiso con la organización

El presente artículo propone validar el constructo del compromiso con la organización como un con... more El presente artículo propone validar el constructo del compromiso con la organización como un concepto multidimensional, tomando como punto de partida las tres perspectivas teóricas desde las que tradicionalmente se estudia el compromiso: la afectiva, la normativa y la calculada. Partiendo de las escalas propuestas por Allen y Meyer (1990) y Meyer, Allen y Smith (1993), se comprara el ajuste de cinco modelos mediante análisis factorial confirmatorio. Los resultados demuestran que el modelo de cuatro factores obtiene el mejor ajuste. Este cuarto factor queda justificado teóricamente, ya que la dimensión calculada se puede desdoblar en dos aspectos: uno que hace referencia el elevado coste de un eventual abandono y otro que hace referencia a la percepción de alternativas de empleo. Se discute que los resultados apoyan los hallazgos de McGee y Ford (1987), pero plantean interrogantes sobre su relación con las otras facetas del compromiso, con los factores antecedentes del compromiso y ...

Research paper thumbnail of Burden of menopausal vasomotor symptoms on work productivity and daily-activity in a cohort of peri/post-menopausal women in daily practice in Spain