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Papers by Socorro Cavalcante
AIDS Care, 2012
This study explores the relationships between demographic, socioeconomic and health statuses of c... more This study explores the relationships between demographic, socioeconomic and health statuses of children whose parents were HIV positive in two cities in Northeast Brazil. We conducted a multisite exploratory study in HIV/AIDS referral services for HIV/AIDS in Fortaleza, the capital of Ceará State, and Salvador, the capital of Bahia State, between June 2008 and March 2009. The study population consisted of 562 HIV+ adults - or caretakers of children of HIV+ adults - who provided information about a single index child under 13 years of age of either sex in their household. A structured questionnaire was used for to the adult parent or caretaker. We used multiple correspondence analysis (MCA), as implemented in the software SPAD (Portable Système pour l'Analyse des données). This analysis enabled us to identify the relationships between a large number of variables simultaneously. Of the 562 children, 311 (55.3%) lived in Fortaleza and 251 (44.7%) lived in Salvador. The proportion of HIV-infected children in Fortaleza was 14.2%, and 61.4% (27/44) of these had progressed to AIDS. In Salvador 34.7% of children were seropositive and 95% (83/87) were diagnosed with AIDS. The most important factors that emerged from the study were city and serostatus of the children. These two active variables accounted for 75.3% of the variance. Results are grouped into four profiles that describe the complex of socioeconomic variables closely associated with these families, and the complex and multiple epidemics of HIV, discrimination and poverty associated with these AIDS-affected families.
Ciencia & saude coletiva, 2018
This study analyzes the reported cases of syphilis in pregnant women and the possible outcomes fo... more This study analyzes the reported cases of syphilis in pregnant women and the possible outcomes for fetuses and the newborn in Fortaleza, Ceará. It is a cross-sectional study that analyzed 175 reported cases of syphilis in pregnant women matched with the corresponding reports of congenital syphilis during the years 2008-2010. Descriptive statistics with absolute and relative frequencies, central tendency and dispersion measures, and the Pearson's chi-square test were used to analyze the statistical significance using the p-value <0.05. Sociodemographic variables of pregnant/postpartum women, the assistance provided to newborns and the outcome of cases were analyzed. The results showed the occurrence of syphilis in young women with more than 85% of inappropriate treatment, 62.9% of untreated sexual partners or lack of statistics and high percentages of non-realization of the recommended tests for congenital syphilis investigation in children. Among the fetuses, five were stillb...
![Research paper thumbnail of [Maternal complications related to the mode of delivery in pregnant women with heart disease in a specialist high risk delivery hospital in Fortaleza, CE]](https://attachments.academia-assets.com/76198639/thumbnails/1.jpg)
](Revista brasileira de ginecologia e obstetrícia : revista da Federação Brasileira das Sociedades de Ginecologia e Obstetrícia, 2012
To determine the association between maternal complications and type of delivery in women with he... more To determine the association between maternal complications and type of delivery in women with heart disease and to identify the possible clinical and obstetrical factors implicated in the determination of the route of delivery. This was a retrospective and descriptive study of the medical records of pregnant women with heart disease admitted to a tertiary reference hospital in the municipality of Fortaleza, Ceará, from 2006 to 2007. The study population included all pregnant women with an antepartum diagnosis of heart disease admitted for delivery, while women who received a diagnosis of heart disease after delivery were excluded, regardless of age and gestational week. A semi-structured questionnaire regarding sociodemographic, clinical and obstetrical variables was used. A descriptive analysis was first performed based on simple frequencies and proportions of the sociodemographic variables. Next, possible associations between clinical and obstetrical aspects and type of delivery ...
Revista Panamericana De Salud Publica-pan American Journal of Public Health, 2009
The aim of this study is to establish the epidemiologic pattern of VL in Fortaleza City and to sh... more The aim of this study is to establish the epidemiologic pattern of VL in Fortaleza City and to show how urbanization has occurred in recent years. Methods. Data were obtained from the State Health Department of Fortaleza, Ceará, and included all cases of VL registered in Fortaleza from January 2001 to December 2006. Results. There were a marked increase and an elevated incidence of cases of VL in urban areas. Children and young people were the most affected group. Conclusion. The epidemic occurrence of VL in the region must convince authorities to adopt more adequate policies of disease control. Leishmaniasis, visceral; kala-azar; epidemiology; urban zones; Brazil.
AIDS Care, 2011
Perinatal HIV prevention has been successful in developing countries but disparities in success b... more Perinatal HIV prevention has been successful in developing countries but disparities in success between rich countries and poor countries have also been observed. Access to prevention of mother-to-child transmission (PMTCT) remains a challenge in many developing countries. In 2007, the Ministry of Health launched the Plan to Reduce the Vertical Transmission of HIV and Syphilis in Brazil to address this need. A cross-sectional study of children living in families affected by HIV was conducted in Ceara State, Northeast Brazil between June 2008 and January 2009 to explore socioeconomic effects of HIV status. Proportion of children with an HIV-positive test was calculated and stratified by age to estimate the impact of PMTCT programs. Chi-square test was employed to compare those proportions. Stata™10.0 software was used for the calculation. We interviewed 437 adults who were visiting the hospital for a consultation or to pickup medication who also had a child less than 13 years of age living with them. They also provided information about other household members (n=1789). Our study showed that children infected with HIV or who live in a household with one or both parents infected with HIV or dead from AIDS live in families of low social class and educational achievement. Seroprevalence is not lower in the cohort of those children 0-2 as compared to 3-4 and 5-12 years of age. Even in Brazil, with its successful PMTCT program overall, there are great disparities among sites. Data from the sites reported here are equivalent to many poor areas in sub-Saharan Africa. This argues that global concern for targeting areas most affected by the epidemic must consider areas within some of the most prosperous countries in the world.
International Journal for Equity in Health
Background Gender-based discrimination remains a substantial barrier to health care access and HI... more Background Gender-based discrimination remains a substantial barrier to health care access and HIV prevention among transgender women in Brazil. The aim of this study was to investigate the association between gender-based discrimination and medical visits, as well as with HIV testing among transgender women in the last 12 months in northeast Brazil. Methods This is a cross-sectional study of 864 transgender women recruited using Respondent-Driven Sampling in three cities in northeastern Brazil in 2016. A socio-behavioral questionnaire was applied. Multivariate analyses were performed using logistic regression, with odds ratio and respective 95% confidence intervals estimation, to estimate the effect of gender-based discrimination on two outcomes: i) medical visits and ii) HIV testing in the last 12 months. Results 547 transgender women (67·0%) had medical visits, and 385 (45·8%) underwent HIV testing in the last 12 months. In the multivariate analysis, gender-based discrimination w...
Revista Brasileira de Epidemiologia
ABSTRACT: Introduction: This paper details the methods used in the second national Biological and... more ABSTRACT: Introduction: This paper details the methods used in the second national Biological and Behavioral Surveillance Survey (BBSS) of HIV, syphilis, and hepatitis B and C among men who have sex with men in Brazil. Methods: Respondent-driven sampling (RDS) was used in 12 cities in 2016. The targeted sample size was initiated with five to six seeds in each city. HIV, syphilis, and Hepatitis B and C rapid tests were offered to participants. RDS Analyst with Gile’s successive sampling (SS) estimator was used to adjust results as recommended and a weight for each individual was generated for further analysis. Data for the 12 cities were merged and analyzed using Stata 14.0 complex survey data tools with each city treated as its own stratum. Results: Duration of data collection varied from 5.9 to 17.6 weeks. 4,176 men were recruited in the 12 cities. Two sites failed to achieve targeted sample size due to a six-month delay in local IRB approval. No city failed to reach convergence in...
Revista Brasileira de Epidemiologia
ABSTRACT: Introduction: This paper details the methods used in the second national Biological and... more ABSTRACT: Introduction: This paper details the methods used in the second national Biological and Behavioral Surveillance Survey (BBSS) of HIV, syphilis, and hepatitis B and C among men who have sex with men in Brazil. Methods: Respondent-driven sampling (RDS) was used in 12 cities in 2016. The targeted sample size was initiated with five to six seeds in each city. HIV, syphilis, and Hepatitis B and C rapid tests were offered to participants. RDS Analyst with Gile’s successive sampling (SS) estimator was used to adjust results as recommended and a weight for each individual was generated for further analysis. Data for the 12 cities were merged and analyzed using Stata 14.0 complex survey data tools with each city treated as its own stratum. Results: Duration of data collection varied from 5.9 to 17.6 weeks. 4,176 men were recruited in the 12 cities. Two sites failed to achieve targeted sample size due to a six-month delay in local IRB approval. No city failed to reach convergence in...
Epidemiologia e Serviços de Saúde, 2005
Revista Brasileira de Ginecologia e Obstetrícia, 2004
… e Serviços de Saúde, 2005
Revista Brasileira de Epidemiologia
ABSTRACT: Introduction: This paper details the methods used in the second national Biological and... more ABSTRACT: Introduction: This paper details the methods used in the second national Biological and Behavioral Surveillance Survey (BBSS) of HIV, syphilis, and hepatitis B and C among men who have sex with men in Brazil. Methods: Respondent-driven sampling (RDS) was used in 12 cities in 2016. The targeted sample size was initiated with five to six seeds in each city. HIV, syphilis, and Hepatitis B and C rapid tests were offered to participants. RDS Analyst with Gile’s successive sampling (SS) estimator was used to adjust results as recommended and a weight for each individual was generated for further analysis. Data for the 12 cities were merged and analyzed using Stata 14.0 complex survey data tools with each city treated as its own stratum. Results: Duration of data collection varied from 5.9 to 17.6 weeks. 4,176 men were recruited in the 12 cities. Two sites failed to achieve targeted sample size due to a six-month delay in local IRB approval. No city failed to reach convergence in...
JAIDS Journal of Acquired Immune Deficiency Syndromes, 2014
To conduct the first population size estimation and biological and behavioral surveillance survey... more To conduct the first population size estimation and biological and behavioral surveillance survey among men who have sex with men (MSM) in Angola. Population size estimation with multiplier method and a cross-sectional study using respondent-driven sampling. Luanda Province, Angola. Study was conducted in a large hospital. Seven hundred ninety-two self-identified MSM accepted a unique object for population size estimation. Three hundred fifty-one MSM were recruited with respondent-driven sampling for biological and behavioral surveillance survey. Interviews and testing for HIV and syphilis were conducted on-site. Analysis used Respondent-Driven Sampling Analysis Tool and STATA 11.0. Univariate, bivariate, and multivariate analyses examined factors associated with HIV and unprotected sex. Six imputation strategies were used for missing data for those refusing to test for HIV. A population size of 6236 MSM was estimated. Twenty-seven of 351 individuals were tested positive. Adjusted HIV prevalence was 3.7% (8.7% crude). With imputation, HIV seroprevalence was estimated between 3.8% [95% confidence interval (CI): 1.6 to 6.5] and 10.5% (95% CI: 5.6 to 15.3). Being older than 25 (odds ratio = 10.8, 95% CI: 3.5 to 32.8) and having suffered episodes of homophobia (odds ratio = 12.7, 95% CI: 3.2 to 49.6) significantly increased the chance of HIV seropositivity. Risk behaviors are widely reported, but HIV seroprevalence is lower than expected. The difference between crude and adjusted values was mostly due to treatment of missing values in Respondent-Driven Sampling Analysis Tool. Solutions are proposed in this article. Although concerns were raised about feasibility and adverse outcomes for MSM, the study was successfully and rapidly completed with no adverse effects.
AIDS Care, 2013
Sociodemographic factors and health in a population of children living in families infected with ... more Sociodemographic factors and health in a population of children living in families infected with HIV in Fortaleza and Salvador, Brazil, AIDS Care: Psychological and Socio-medical Aspects of AIDS/HIV,
AIDS Care, 2012
This study explores the relationships between demographic, socioeconomic and health statuses of c... more This study explores the relationships between demographic, socioeconomic and health statuses of children whose parents were HIV positive in two cities in Northeast Brazil. We conducted a multisite exploratory study in HIV/AIDS referral services for HIV/AIDS in Fortaleza, the capital of Ceará State, and Salvador, the capital of Bahia State, between June 2008 and March 2009. The study population consisted of 562 HIV+ adults - or caretakers of children of HIV+ adults - who provided information about a single index child under 13 years of age of either sex in their household. A structured questionnaire was used for to the adult parent or caretaker. We used multiple correspondence analysis (MCA), as implemented in the software SPAD (Portable Système pour l&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;Analyse des données). This analysis enabled us to identify the relationships between a large number of variables simultaneously. Of the 562 children, 311 (55.3%) lived in Fortaleza and 251 (44.7%) lived in Salvador. The proportion of HIV-infected children in Fortaleza was 14.2%, and 61.4% (27/44) of these had progressed to AIDS. In Salvador 34.7% of children were seropositive and 95% (83/87) were diagnosed with AIDS. The most important factors that emerged from the study were city and serostatus of the children. These two active variables accounted for 75.3% of the variance. Results are grouped into four profiles that describe the complex of socioeconomic variables closely associated with these families, and the complex and multiple epidemics of HIV, discrimination and poverty associated with these AIDS-affected families.
Ciencia & saude coletiva, 2018
This study analyzes the reported cases of syphilis in pregnant women and the possible outcomes fo... more This study analyzes the reported cases of syphilis in pregnant women and the possible outcomes for fetuses and the newborn in Fortaleza, Ceará. It is a cross-sectional study that analyzed 175 reported cases of syphilis in pregnant women matched with the corresponding reports of congenital syphilis during the years 2008-2010. Descriptive statistics with absolute and relative frequencies, central tendency and dispersion measures, and the Pearson's chi-square test were used to analyze the statistical significance using the p-value <0.05. Sociodemographic variables of pregnant/postpartum women, the assistance provided to newborns and the outcome of cases were analyzed. The results showed the occurrence of syphilis in young women with more than 85% of inappropriate treatment, 62.9% of untreated sexual partners or lack of statistics and high percentages of non-realization of the recommended tests for congenital syphilis investigation in children. Among the fetuses, five were stillb...
Revista brasileira de ginecologia e obstetrícia : revista da Federação Brasileira das Sociedades de Ginecologia e Obstetrícia, 2012
To determine the association between maternal complications and type of delivery in women with he... more To determine the association between maternal complications and type of delivery in women with heart disease and to identify the possible clinical and obstetrical factors implicated in the determination of the route of delivery. This was a retrospective and descriptive study of the medical records of pregnant women with heart disease admitted to a tertiary reference hospital in the municipality of Fortaleza, Ceará, from 2006 to 2007. The study population included all pregnant women with an antepartum diagnosis of heart disease admitted for delivery, while women who received a diagnosis of heart disease after delivery were excluded, regardless of age and gestational week. A semi-structured questionnaire regarding sociodemographic, clinical and obstetrical variables was used. A descriptive analysis was first performed based on simple frequencies and proportions of the sociodemographic variables. Next, possible associations between clinical and obstetrical aspects and type of delivery ...
Revista Panamericana De Salud Publica-pan American Journal of Public Health, 2009
The aim of this study is to establish the epidemiologic pattern of VL in Fortaleza City and to sh... more The aim of this study is to establish the epidemiologic pattern of VL in Fortaleza City and to show how urbanization has occurred in recent years. Methods. Data were obtained from the State Health Department of Fortaleza, Ceará, and included all cases of VL registered in Fortaleza from January 2001 to December 2006. Results. There were a marked increase and an elevated incidence of cases of VL in urban areas. Children and young people were the most affected group. Conclusion. The epidemic occurrence of VL in the region must convince authorities to adopt more adequate policies of disease control. Leishmaniasis, visceral; kala-azar; epidemiology; urban zones; Brazil.
AIDS Care, 2011
Perinatal HIV prevention has been successful in developing countries but disparities in success b... more Perinatal HIV prevention has been successful in developing countries but disparities in success between rich countries and poor countries have also been observed. Access to prevention of mother-to-child transmission (PMTCT) remains a challenge in many developing countries. In 2007, the Ministry of Health launched the Plan to Reduce the Vertical Transmission of HIV and Syphilis in Brazil to address this need. A cross-sectional study of children living in families affected by HIV was conducted in Ceara State, Northeast Brazil between June 2008 and January 2009 to explore socioeconomic effects of HIV status. Proportion of children with an HIV-positive test was calculated and stratified by age to estimate the impact of PMTCT programs. Chi-square test was employed to compare those proportions. Stata™10.0 software was used for the calculation. We interviewed 437 adults who were visiting the hospital for a consultation or to pickup medication who also had a child less than 13 years of age living with them. They also provided information about other household members (n=1789). Our study showed that children infected with HIV or who live in a household with one or both parents infected with HIV or dead from AIDS live in families of low social class and educational achievement. Seroprevalence is not lower in the cohort of those children 0-2 as compared to 3-4 and 5-12 years of age. Even in Brazil, with its successful PMTCT program overall, there are great disparities among sites. Data from the sites reported here are equivalent to many poor areas in sub-Saharan Africa. This argues that global concern for targeting areas most affected by the epidemic must consider areas within some of the most prosperous countries in the world.
International Journal for Equity in Health
Background Gender-based discrimination remains a substantial barrier to health care access and HI... more Background Gender-based discrimination remains a substantial barrier to health care access and HIV prevention among transgender women in Brazil. The aim of this study was to investigate the association between gender-based discrimination and medical visits, as well as with HIV testing among transgender women in the last 12 months in northeast Brazil. Methods This is a cross-sectional study of 864 transgender women recruited using Respondent-Driven Sampling in three cities in northeastern Brazil in 2016. A socio-behavioral questionnaire was applied. Multivariate analyses were performed using logistic regression, with odds ratio and respective 95% confidence intervals estimation, to estimate the effect of gender-based discrimination on two outcomes: i) medical visits and ii) HIV testing in the last 12 months. Results 547 transgender women (67·0%) had medical visits, and 385 (45·8%) underwent HIV testing in the last 12 months. In the multivariate analysis, gender-based discrimination w...
Revista Brasileira de Epidemiologia
ABSTRACT: Introduction: This paper details the methods used in the second national Biological and... more ABSTRACT: Introduction: This paper details the methods used in the second national Biological and Behavioral Surveillance Survey (BBSS) of HIV, syphilis, and hepatitis B and C among men who have sex with men in Brazil. Methods: Respondent-driven sampling (RDS) was used in 12 cities in 2016. The targeted sample size was initiated with five to six seeds in each city. HIV, syphilis, and Hepatitis B and C rapid tests were offered to participants. RDS Analyst with Gile’s successive sampling (SS) estimator was used to adjust results as recommended and a weight for each individual was generated for further analysis. Data for the 12 cities were merged and analyzed using Stata 14.0 complex survey data tools with each city treated as its own stratum. Results: Duration of data collection varied from 5.9 to 17.6 weeks. 4,176 men were recruited in the 12 cities. Two sites failed to achieve targeted sample size due to a six-month delay in local IRB approval. No city failed to reach convergence in...
Revista Brasileira de Epidemiologia
ABSTRACT: Introduction: This paper details the methods used in the second national Biological and... more ABSTRACT: Introduction: This paper details the methods used in the second national Biological and Behavioral Surveillance Survey (BBSS) of HIV, syphilis, and hepatitis B and C among men who have sex with men in Brazil. Methods: Respondent-driven sampling (RDS) was used in 12 cities in 2016. The targeted sample size was initiated with five to six seeds in each city. HIV, syphilis, and Hepatitis B and C rapid tests were offered to participants. RDS Analyst with Gile’s successive sampling (SS) estimator was used to adjust results as recommended and a weight for each individual was generated for further analysis. Data for the 12 cities were merged and analyzed using Stata 14.0 complex survey data tools with each city treated as its own stratum. Results: Duration of data collection varied from 5.9 to 17.6 weeks. 4,176 men were recruited in the 12 cities. Two sites failed to achieve targeted sample size due to a six-month delay in local IRB approval. No city failed to reach convergence in...
Epidemiologia e Serviços de Saúde, 2005
Revista Brasileira de Ginecologia e Obstetrícia, 2004
… e Serviços de Saúde, 2005
Revista Brasileira de Epidemiologia
ABSTRACT: Introduction: This paper details the methods used in the second national Biological and... more ABSTRACT: Introduction: This paper details the methods used in the second national Biological and Behavioral Surveillance Survey (BBSS) of HIV, syphilis, and hepatitis B and C among men who have sex with men in Brazil. Methods: Respondent-driven sampling (RDS) was used in 12 cities in 2016. The targeted sample size was initiated with five to six seeds in each city. HIV, syphilis, and Hepatitis B and C rapid tests were offered to participants. RDS Analyst with Gile’s successive sampling (SS) estimator was used to adjust results as recommended and a weight for each individual was generated for further analysis. Data for the 12 cities were merged and analyzed using Stata 14.0 complex survey data tools with each city treated as its own stratum. Results: Duration of data collection varied from 5.9 to 17.6 weeks. 4,176 men were recruited in the 12 cities. Two sites failed to achieve targeted sample size due to a six-month delay in local IRB approval. No city failed to reach convergence in...
JAIDS Journal of Acquired Immune Deficiency Syndromes, 2014
To conduct the first population size estimation and biological and behavioral surveillance survey... more To conduct the first population size estimation and biological and behavioral surveillance survey among men who have sex with men (MSM) in Angola. Population size estimation with multiplier method and a cross-sectional study using respondent-driven sampling. Luanda Province, Angola. Study was conducted in a large hospital. Seven hundred ninety-two self-identified MSM accepted a unique object for population size estimation. Three hundred fifty-one MSM were recruited with respondent-driven sampling for biological and behavioral surveillance survey. Interviews and testing for HIV and syphilis were conducted on-site. Analysis used Respondent-Driven Sampling Analysis Tool and STATA 11.0. Univariate, bivariate, and multivariate analyses examined factors associated with HIV and unprotected sex. Six imputation strategies were used for missing data for those refusing to test for HIV. A population size of 6236 MSM was estimated. Twenty-seven of 351 individuals were tested positive. Adjusted HIV prevalence was 3.7% (8.7% crude). With imputation, HIV seroprevalence was estimated between 3.8% [95% confidence interval (CI): 1.6 to 6.5] and 10.5% (95% CI: 5.6 to 15.3). Being older than 25 (odds ratio = 10.8, 95% CI: 3.5 to 32.8) and having suffered episodes of homophobia (odds ratio = 12.7, 95% CI: 3.2 to 49.6) significantly increased the chance of HIV seropositivity. Risk behaviors are widely reported, but HIV seroprevalence is lower than expected. The difference between crude and adjusted values was mostly due to treatment of missing values in Respondent-Driven Sampling Analysis Tool. Solutions are proposed in this article. Although concerns were raised about feasibility and adverse outcomes for MSM, the study was successfully and rapidly completed with no adverse effects.
AIDS Care, 2013
Sociodemographic factors and health in a population of children living in families infected with ... more Sociodemographic factors and health in a population of children living in families infected with HIV in Fortaleza and Salvador, Brazil, AIDS Care: Psychological and Socio-medical Aspects of AIDS/HIV,