Barriers and facilitators to the implementation of mandatory folate fortification as an evidence-based policy to prevent neural tube defects.

BACKGROUND: Neural tube defects continue to be one of the main congenital malformations affecting the development of the nervous system and a significant cause of disability and disease burden to individuals living with these conditions. Mandatory food fortification with folic acid is, by far, one of the most efficacious, safe, and cost-effective interventions to prevent neural tube defects. However, most countries fail to effectively fortify staple foods with folic acid, impacting public health and healthcare systems and generating dismal disparities. AIM: This article discusses the main barriers and facilitators for implementing mandatory food fortification as an evidence-based policy to prevent neural tube defects worldwide. METHODS: A comprehensive review of the scientific literature allowed the identification of the determinant factors acting as barriers or facilitators for the reach, adoption, implementation, and scaling up of mandatory food fortification with folic acid as an evidence-based policy. RESULTS: We identified eight barriers and seven facilitators as determinant factors for food fortification policies. The identified factors were classified as individual, contextual, and external, inspired by the Consolidated Framework for Implementation of Research (CFIR). We discuss mechanisms to overcome obstacles and seize the opportunities to approach this public health intervention safely and effectively. CONCLUSIONS: Several determinant factors acting as barriers or facilitators influence the implementation of mandatory food fortification as an evidence-based policy worldwide. Notoriously, policymakers in many countries may lack knowledge of the benefits of scaling up their policies to prevent folic acid-sensitive neural tube defects, improve the health status of their communities, and promote the protection of many children from these disabling but preventable conditions. Not addressing this problem negatively affects four levels: public health, society, family, and individuals. Science-driven advocacy and partnerships with essential stakeholders can help overcome the barriers and leverage the facilitators for safe and effective food fortification.

Analysis of early neonatal case fatality rate among newborns with congenital hydrocephalus, a 2000-2014 multi-country registry-based study.

BACKGROUND: Congenital hydrocephalus (CH) comprises a heterogeneous group of birth anomalies with a wide-ranging prevalence across geographic regions and registry type. The aim of the present study was to analyze the early neonatal case fatality rate (CFR) and total birth prevalence of newborns diagnosed with CH. METHODS: Data were provided by 25 registries from four continents participating in the International Clearinghouse for Birth Defects Surveillance and Research (ICBDSR) on births ascertained between 2000 and 2014. Two CH rates were calculated using a Poisson distribution: early neonatal CFR (death within 7 days) per 100 liveborn CH cases (CFR) and total birth prevalence rate (BPR) per 10,000 births (including live births and stillbirths) (BPR). Heterogeneity between registries was calculated using a meta-analysis approach with random effects. Temporal trends in CFR and BPR within registries were evaluated through Poisson regression modeling. RESULTS: A total of 13,112 CH cases among 19,293,280 total births were analyzed. The early neonatal CFR was 5.9 per 100 liveborn cases, 95% confidence interval (CI): 5.4-6.8. The CFR among syndromic cases was 2.7 times (95% CI: 2.2-3.3) higher than among non-syndromic cases (10.4% [95% CI: 9.3-11.7] and 4.4% [95% CI: 3.7-5.2], respectively). The total BPR was 6.8 per 10,000 births (95% CI: 6.7-6.9). Stratified by elective termination of pregnancy for fetal anomalies (ETOPFA), region and system, higher CFR were observed alongside higher BPR rates. The early neonatal CFR and total BPR did not show temporal variation, with the exception of a CFR decrease in one registry. CONCLUSIONS: Findings of early neonatal CFR and total BPR were highly heterogeneous among registries participating in ICBDSR. Most registries with higher CFR also had higher BPR. Differences were attributable to type of registry (hospital-based vs. population-based), ETOPFA (allowed yes or no) and geographical regions. These findings contribute to the understanding of regional differences of CH occurrence and early neonatal deaths.

Prevalence and mortality in children with congenital diaphragmatic hernia: a multicountry study.

PURPOSE: This study determined the prevalence, mortality, and time trends of children with congenital diaphragmatic hernia (CDH). METHODS: Twenty-five hospital- and population-based surveillance programs in 19 International Clearinghouse for Birth Defects Surveillance and Research member countries provided birth defects mortality data between 1974 and 2015. CDH cases included live births, stillbirths, or elective termination of pregnancy for fetal anomalies. Prevalence, cumulative mortality rates, and 95% confidence intervals (CIs) were calculated using Poisson regression and a Kaplan-Meier product-limit method. Joinpoint regression analyses were conducted to assess time trends. RESULTS: The prevalence of CDH was 2.6 per 10,000 total births (95% CI: 2.5-2.7), slightly increasing between 2001 and 2012 (average annual percent change = 0.5%; 95% CI:-0.6 to 1.6). The total percent mortality of CDH was 37.7%, with hospital-based registries having more deaths among live births than population-based registries (45.1% vs. 33.8%). Mortality rates decreased over time (average annual percent change = -2.4%; 95% CI: -3.8 to 1.1). Most deaths due to CDH occurred among 2- to 6-day-old infants for both registry types (36.3%, hospital-based; 12.1%, population-based). CONCLUSIONS: The mortality of CDH has decreased over time. Mortality remains high during the first week and varied by registry type.

Analysis of Mortality among Neonates and Children with Spina Bifida: An International Registry-Based Study, 2001-2012.

BACKGROUND: Medical advancements have resulted in better survival and life expectancy among those with spina bifida, but a significantly increased risk of perinatal and postnatal mortality for individuals with spina bifida remains. OBJECTIVES: To examine stillbirth and infant and child mortality among those affected by spina bifida using data from multiple countries. METHODS: We conducted an observational study, using data from 24 population- and hospital-based surveillance registries in 18 countries contributing as members of the International Clearinghouse for Birth Defects Surveillance and Research (ICBDSR). Cases of spina bifida that resulted in livebirths or stillbirths from 20 weeks' gestation or elective termination of pregnancy for fetal anomaly (ETOPFA) were included. Among liveborn spina bifida cases, we calculated mortality at different ages as number of deaths among liveborn cases divided by total number of liveborn cases with spina bifida. As a secondary outcome measure, we estimated the prevalence of spina bifida per 10 000 total births. The 95% confidence interval for the prevalence estimate was estimated using the Poisson approximation of binomial distribution. RESULTS: Between years 2001 and 2012, the overall first-week mortality proportion was 6.9% (95% CI 6.3, 7.7) and was lower in programmes operating in countries with policies that allowed ETOPFA compared with their counterparts (5.9% vs. 8.4%). The majority of first-week mortality occurred on the first day of life. In programmes where information on long-term mortality was available through linkage to administrative databases, survival at 5 years of age was 90%-96% in Europe, and 86%-96% in North America. CONCLUSIONS: Our multi-country study showed a high proportion of stillbirth and infant and child deaths among those with spina bifida. Effective folic acid interventions could prevent many cases of spina bifida, thereby preventing associated childhood morbidity and mortality.

A consensus statement on birth defects surveillance, prevention, and care in Latin America and the Caribbean.

Birth defects contribute up to 21% of the mortality in those under 5 years of age in Latin America and the Caribbean (LAC), and that burden has been compounded by the Zika virus epidemic. In 2001, the March of Dimes launched a series of biennial assemblies called the International Conference on Birth Defects and Disabilities in the Developing World (ICBD). The latest ICBD, in 2017, convened in Bogotá, Colombia, and was attended by over 300 professionals, policymakers, and donors. The conference attendees, a majority of whom were from LAC, supported a call to action in the form of a consensus statement. The consensus statement lists key actions for maximizing birth defects surveillance, prevention, and care in LAC: 1) improving surveillance; 2) reducing risks for birth defects; 3) fortifying staple foods; 4) preventing and treating infections associated with birth defects; 5) implementing newborn screening; 6) providing care and services for people with birth defects and disabilities; 7) involving governments, civil society, and international agencies; and 8) advancing research for birth defects. Implementation and scale-up of evidence-based interventions using multisectoral and multidisciplinary collaborative approaches were endorsed. LAC countries can leverage technology and social media to advance and advocate for approaches identified in the consensus statement. The consensus statement can be used as a guide by both governments and nongovernmental agencies to take immediate steps for improving the quality of life of those living with birth defects and associated disabilities in the LAC countries.

Los defectos congénitos contribuyen hasta con el 21% de la mortalidad de los menores de 5 años en América Latina y el Caribe (ALC); la epidemia de síndrome congénito por el virus del Zika aumentó esa carga. En el 2001, la organización March of Dimes instituyó una serie de asambleas bienales denominadas Conferencia internacional sobre defectos congénitos y discapacidades en el mundo en desarrollo (ICBD). La más re-ciente, en el 2017, se llevó a cabo en Bogotá (Colombia) y contó con la presencia de más de 300 profesionales, responsables de las políticas y donantes. Los asistentes a la conferencia, en su mayoría de América Latina y el Caribe, apoyaron un llamamiento a la acción en forma de una declaración de consenso. Dicha declaración enumera las acciones clave para potenciar al máximo la vigilancia, la prevención y la atención de los defectos congénitos en América Latina y el Caribe, a saber: 1) mejorar la vigilancia; 2) reducir los factores de riesgo asociados a defectos congénitos; 3) fortificar los alimentos de primera necesidad; 4) prevenir y tratar las infecciones asociadas con los defectos congénitos; 5) instituir programas de tamizaje a los recién nacidos; 6) prestar atención y servicios a las personas con defectos congénitos y discapacidades; 7) hacer participar a los gobiernos, la sociedad civil y los organismos internacionales; y 8) promover la investigación sobre los defectos congénitos. Se respaldaron la ejecución y la ampliación a mayor escala de las intervenciones basadas en evidencia, con enfoques colaborativos multisectoriales y multidisciplinarios. Los países de América Latina y el Caribe pueden aprovechar la tecnología y las redes sociales para impulsar y promover las estrategias mencionadas en la declaración de consenso. Por su parte, tanto los gobiernos como los organismos no gubernamentales pueden usar la declaración de consenso como una guía para adoptar medidas inmediatas para mejorar la calidad de vida de las personas con defectos congénitos y las discapacidades asociadas, en los países de América Latina y el Caribe.

As malformações congênitas constituem 21% das causas de morte em crianças menores de 5 anos na América Latina e no Caribe (ALC) e este ônus tem sido agravado pela epidemia do vírus zika. Em 2001, a March of Dimes lançou uma série de encontros bienais denominada International Conference on Birth Defects and Disabilities in the Developing World (conferência internacional sobre malformações congênitas e deficiências no mundo em desenvolvimento, ICBD). A última ICBD foi realizada em Bogotá, na Colômbia, em 2017 e contou com a participação de mais de 300 profissionais, formuladores de políticas e doadores. Os participantes da conferência, na sua maioria da ALC, demonstraram apoio a um chamado à ação na forma de uma declaração de consenso. Nela, enumeram-se as principais ações para aumentar ao máximo a vigilância, prevenção e atenção às malformações congênitas na ALC: 1) melhorar a vigilância; 2) reduzir os riscos de malformações congênitas; 3) fortificar os gêneros alimentícios de primeira necessidade; 4) prevenir e tratar as infecções associadas às malformações congênitas; 5) implementar testes de detecção em recém-nascidos; 6) prestar atendimento e serviços aos portadores de malformações congênitas e deficiências; 7) atrair a participação de governos, sociedade civil e organismos internacionais e 8) incentivar o progresso da pesquisa na área de malformações congênitas. Foram endossadas a implementação e a expansão das intervenções com fundamentação científica usando enfoques colaborativos multissetoriais e multidisciplinares. Os países da ALC devem se valer de tecnologia e das mídias sociais para promover e defender os enfoques identificados na declaração de consenso. A declaração pode servir como guia aos governos e organismos não governamentais ao tomarem medidas imediatas para melhorar a qualidade de vida de quem vive com malformações congênitas e deficiências associadas nos países da ALC.

A consensus statement on birth defects surveillance, prevention, and care in Latin America and the Caribbean

[ABSTRACT]. Birth defects contribute up to 21% of the mortality in those under 5 years of age in Latin America and the Caribbean (LAC), and that burden has been compounded by the Zika virus epidemic. In 2001, the March of Dimes launched a series of biennial assemblies called the International Conference on Birth Defects and Disabilities in the Developing World (ICBD). The latest ICBD, in 2017, convened in Bogotá, Colombia, and was attended by over 300 professionals, policymakers, and donors. The conference attendees, a majority of whom were from LAC, supported a call to action in the form of a consensus statement. The consensus statement lists key actions for maximizing birth defects surveillance, prevention, and care in LAC: 1) improving surveillance; 2) reducing risks for birth defects; 3) fortifying staple foods; 4) preventing and treating infections associated with birth defects; 5) implementing newborn screening; 6) providing care and services for people with birth defects and disabilities; 7) involving governments, civil society, and international agencies; and 8) advancing research for birth defects. Implementation and scale-up of evidence-based interventions using multisectoral and multidisciplinary collaborative approaches were endorsed. LAC countries can leverage technology and social media to advance and advocate for approaches identified in the consensus statement. The consensus statement can be used as a guide by both governments and nongovernmental agencies to take immediate steps for improving the quality of life of those living with birth defects and associated disabilities in the LAC countries.

[RESUMEN]. Los defectos congénitos contribuyen hasta con el 21% de la mortalidad de los menores de 5 años en América Latina y el Caribe (ALC); la epidemia de síndrome congénito por el virus del Zika aumentó esa carga. En el 2001, la organización March of Dimes instituyó una serie de asambleas bienales denominadas Conferencia internacional sobre defectos congénitos y discapacidades en el mundo en desarrollo (ICBD). La más reciente, en el 2017, se llevó a cabo en Bogotá (Colombia) y contó con la presencia de más de 300 profesionales, responsables de las políticas y donantes. Los asistentes a la conferencia, en su mayoría de América Latina y el Caribe, apoyaron un llamamiento a la acción en forma de una declaración de consenso. Dicha declaración enumera las acciones clave para potenciar al máximo la vigilancia, la prevención y la atención de los defectos congénitos en América Latina y el Caribe, a saber: 1) mejorar la vigilancia; 2) reducir los factores de riesgo asociados a defectos congénitos; 3) fortificar los alimentos de primera necesidad; 4) prevenir y tratar las infecciones asociadas con los defectos congénitos; 5) instituir programas de tamizaje a los recién nacidos; 6) prestar atención y servicios a las personas con defectos congénitos y discapacidades; 7) hacer participar a los gobiernos, la sociedad civil y los organismos internacionales; y 8) promover la investigación sobre los defectos congénitos. Se respaldaron la ejecución y la ampliación a mayor escala de las intervenciones basadas en evidencia, con enfoques colaborativos multisectoriales y multidisciplinarios. Los países de América Latina y el Caribe pueden aprovechar la tecnología y las redes sociales para impulsar y promover las estrategias mencionadas en la declaración de consenso. Por su parte, tanto los gobiernos como los organismos no gubernamentales pueden usar la declaración de consenso como una guía para adoptar medidas inmediatas para mejorar la calidad de vida de las personas con defectos congénitos y las discapacidades asociadas, en los países de América Latina y el Caribe.

[RESUMO]. As malformações congênitas constituem 21% das causas de morte em crianças menores de 5 anos na América Latina e no Caribe (ALC) e este ônus tem sido agravado pela epidemia do vírus zika. Em 2001, a March of Dimes lançou uma série de encontros bienais denominada International Conference on Birth Defects and Disabilities in the Developing World (conferência internacional sobre malformações congênitas e deficiências no mundo em desenvolvimento, ICBD). A última ICBD foi realizada em Bogotá, na Colômbia, em 2017 e contou com a participação de mais de 300 profissionais, formuladores de políticas e doadores. Os participantes da conferência, na sua maioria da ALC, demonstraram apoio a um chamado à ação na forma de uma declaração de consenso. Nela, enumeram-se as principais ações para aumentar ao máximo a vigilância, prevenção e atenção às malformações congênitas na ALC: 1) melhorar a vigilância; 2) reduzir os riscos de malformações congênitas; 3) fortificar os gêneros alimentícios de primeira necessidade; 4) prevenir e tratar as infecções associadas às malformações congênitas; 5) implementar testes de detecção em recém-nascidos; 6) prestar atendimento e serviços aos portadores de malformações congênitas e deficiências; 7) atrair a participação de governos, sociedade civil e organismos internacionais e 8) incentivar o progresso da pesquisa na área de malformações congênitas. Foram endossadas a implementação e a expansão das intervenções com fundamentação científica usando enfoques colaborativos multissetoriais e multidisciplinares. Os países da ALC devem se valer de tecnologia e das mídias sociais para promover e defender os enfoques identificados na declaração de consenso. A declaração pode servir como guia aos governos e organismos não governamentais ao tomarem medidas imediatas para melhorar a qualidade de vida de quem vive com malformações congênitas e deficiências associadas nos países da ALC.

Unintended pregnancy and its impact on childhood rotavirus immunization in Peru

[ABSTRACT]. Objective. To examine the association between unintended pregnancy and inadequate rotavirus immunization in Peruvian children. Methods. Utilizing cross-sectional observational data from the 2012 Demographic and Health Survey (DHS), logistic regression analysis was used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) for the association between unintended pregnancy and inadequate rotavirus immunization among children. Results. Of 9 620 pregnancies in the five years preceding the survey, 5 396 of them (56.1%) were reported as unintended, of which 2 981 were mistimed (30.9%) and 2 415 (25.1%) were unwanted. A total of 5 187 children (54.9%; 95% CI = 53.8%–56.1%) were recorded to have inadequate rotavirus immunization. Maternal literacy status was found to be a significant effect modifier of the association between pregnancy intention and rotavirus immunization (P value = 0.006). Among children born to illiterate mothers, unintended pregnancy was significantly associated with increased odds of inadequate rotavirus immunization (aOR = 2.6; 95% CI = 1.2–4.4), as compared to children from intended pregnancies. Deficient rotavirus immunization was significantly predicted by inadequate polio, pneumococcal, and influenza vaccinations; having a television in the household; and less maternal education. In contrast, having received breast-feeding education was protective against inadequate rotavirus immunization. Among literate mothers, there was no association between pregnancy intention and rotavirus immunization. Conclusion. Our study provides evidence that improving literacy among mothers could increase rotavirus vaccination uptake among children from unintended pregnancies.

[RESUMEN]. Objetivo. Examinar la asociación entre el embarazo involuntario y la vacunación inadecuada contra rotavirus en niños peruanos. Métodos. A partir de datos de observación transversales de la Encuesta de Demografía y Salud del 2012, se empleó el análisis de regresión logística para calcular las razones de posibilidades ajustadas (aOR) y los intervalos de confianza de 95% (IC) de la asociación entre el embarazo involuntario y la inmunización inadecuada contra rotavirus en los niños. Resultados. De 9 620 embarazos en los cinco años anteriores a la encuesta, 5 396 (56,1%) se reconocieron como involuntarios, de los cuales 2 981 fueron inoportunos (30,9%) y 2 415 (25,1%) fueron no deseados. Se registraron 5 187 niños (54,9%; IC de 95% = 53,8%–56,1%) con inmunización contra rotavirus inadecuada. El alfabetismo materno resultó ser un importante modificador de efecto de la asociación entre la intencionalidad del embarazo y la vacunación antirrotavírica (valor de P = 0,006). En los hijos de las mujeres analfabetas, el embarazo involuntario se asoció significativamente con mayores probabilidades de inmunización inadecuada contra rotavirus (aOR = 2,6; IC de 95% = 1,2–4,4), en comparación con los nacidos de los embarazos voluntarios. Las vacunaciones antipoliomielítica, antineumocócica y antigripal inadecuadas, tener un televisor en el hogar y una menor escolaridad materna fueron factores predictivos significativos de una inmunización antirrotavírica deficiente. Por el contrario, haber recibido instrucción respecto a la lactancia materna fue un factor protector contra la inmunización antirrotavírica inadecuada. En las madres alfabetizadas, no hubo asociación alguna entre la intencionalidad del embarazo y la inmunización contra rotavirus. Conclusiones. Nuestro estudio aporta evidencia que muestra que mejorar el alfabetismo en las madres podría aumentar la captación de la vacunación antirrotavírica en los niños nacidos de embarazos involuntarios.

[RESUMO]. Objetivo. Examinar a associação entre gravidez indesejada e falta de vacinação oportuna contra rotavírus em crianças peruanas. Métodos. A partir de dados observacionais transversais obtidos na Pesquisa de Demografia e Saúde 2012, foi conduzida uma análise de regressão logística para estimar razões de chances ajustadas (OR aj) e intervalos de confiança de 95% (IC 95%) para a associação entre gravidez indesejada e falta de vacinação oportuna contra rotavírus em crianças. Resultados. Dentre 9.620 gravidezes ocorridas nos cinco anos anteriores à pesquisa, 5.396 (56,1%) foram referidas como não intencionadas, das quais 2.981 foram não no momento certo (30,9%) e 2.415 (25,1%) indesejadas. Registrou-se falta de vacinação oportuna contra rotavírus em 5.187 crianças ao todo (54,9%; IC 95% = 53,8%–56.1%). Verificou-se que o nível de escolaridade materna é um importante modificador de efeito da associação entre intenção de engravidar e vacinação contra rotavírus (valor de P = 0,006). Nas crianças nascidas de mães sem escolaridade, observou-se uma associação significativa entre gravidez indesejada e maior chance de falta de vacinação oportuna contra rotavírus (OR aj = 2,6; IC 95% = 1,2–4,4) quando comparadas às crianças de gravidezes intencionadas. A falta de vacinação contra rotavírus prognosticou de modo significativo a falta de vacinação oportuna contra poliomielite, doença pneumocócica e gripe; possuir televisor no domicílio e menor nível de escolaridade materna. Em contraste, receber orientação sobre o aleitamento materno foi um fator protetor contra a falta de vacinação oportuna contra rotavírus. Entre as mães com escolaridade, não se verificou associação entre intenção de engravidar e vacinação contra rotavírus. Conclusão. O estudo evidencia que melhorar o nível de escolaridade materna poderia contribuir para aumentar a vacinação contra rotavírus em crianças nascidas de gravidez indesejada.

Unintended pregnancy and its impact on childhood rotavirus immunization in Peru.

OBJECTIVE: To examine the association between unintended pregnancy and inadequate rotavirus immunization in Peruvian children. METHODS: Utilizing cross-sectional observational data from the 2012 Demographic and Health Survey (DHS), logistic regression analysis was used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) for the association between unintended pregnancy and inadequate rotavirus immunization among children. RESULTS: Of 9 620 pregnancies in the five years preceding the survey, 5 396 of them (56.1%) were reported as unintended, of which 2 981 were mistimed (30.9%) and 2 415 (25.1%) were unwanted. A total of 5 187 children (54.9%; 95% CI = 53.8%-56.1%) were recorded to have inadequate rotavirus immunization. Maternal literacy status was found to be a significant effect modifier of the association between pregnancy intention and rotavirus immunization (P value = 0.006). Among children born to illiterate mothers, unintended pregnancy was significantly associated with increased odds of inadequate rotavirus immunization (aOR = 2.6; 95% CI = 1.2-4.4), as compared to children from intended pregnancies. Deficient rotavirus immunization was significantly predicted by inadequate polio, pneumococcal, and influenza vaccinations; having a television in the household; and less maternal education. In contrast, having received breast-feeding education was protective against inadequate rotavirus immunization. Among literate mothers, there was no association between pregnancy intention and rotavirus immunization. CONCLUSION: Our study provides evidence that improving literacy among mothers could increase rotavirus vaccination uptake among children from unintended pregnancies.

Unintended pregnancy and its impact on childhood rotavirus immunization in Peru / Embarazo involuntario y su repercusión sobre la vacunación contra rotavirus de la niñez en Perú / Gravidez indesejada e repercussão na vacinação contra rotavírus em crianças no Peru

ABSTRACT Objective To examine the association between unintended pregnancy and inadequate rotavirus immunization in Peruvian children. Methods Utilizing cross-sectional observational data from the 2012 Demographic and Health Survey (DHS), logistic regression analysis was used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) for the association between unintended pregnancy and inadequate rotavirus immunization among children. Results Of 9 620 pregnancies in the five years preceding the survey, 5 396 of them (56.1%) were reported as unintended, of which 2 981 were mistimed (30.9%) and 2 415 (25.1%) were unwanted. A total of 5 187 children (54.9%; 95% CI = 53.8%-56.1%) were recorded to have inadequate rotavirus immunization. Maternal literacy status was found to be a significant effect modifier of the association between pregnancy intention and rotavirus immunization (P value = 0.006). Among children born to illiterate mothers, unintended pregnancy was significantly associated with increased odds of inadequate rotavirus immunization (aOR = 2.6; 95% CI = 1.2-4.4), as compared to children from intended pregnancies. Deficient rotavirus immunization was significantly predicted by inadequate polio, pneumococcal, and influenza vaccinations; having a television in the household; and less maternal education. In contrast, having received breast-feeding education was protective against inadequate rotavirus immunization. Among literate mothers, there was no association between pregnancy intention and rotavirus immunization. Conclusion Our study provides evidence that improving literacy among mothers could increase rotavirus vaccination uptake among children from unintended pregnancies.

RESUMEN Objetivo Examinar la asociación entre el embarazo involuntario y la vacunación inadecuada contra rotavirus en niños peruanos. Métodos A partir de datos de observación transversales de la Encuesta de Demografía y Salud del 2012, se empleó el análisis de regresión logística para calcular las razones de posibilidades ajustadas (aOR) y los intervalos de confianza de 95% (IC) de la asociación entre el embarazo involuntario y la inmunización inadecuada contra rotavirus en los niños. Resultados De 9 620 embarazos en los cinco años anteriores a la encuesta, 5 396 (56,1%) se reconocieron como involuntarios, de los cuales 2 981 fueron inoportunos (30,9%) y 2 415 (25,1%) fueron no deseados. Se registraron 5 187 niños (54,9%; IC de 95% = 53,8%-56,1%) con inmunización contra rotavirus inadecuada. El alfabetismo materno resultó ser un importante modificador de efecto de la asociación entre la intencionalidad del embarazo y la vacunación antirrotavírica (valor de P = 0,006). En los hijos de las mujeres analfabetas, el embarazo involuntario se asoció significativamente con mayores probabilidades de inmunización inadecuada contra rotavirus (aOR = 2,6; IC de 95% = 1,2-4,4), en comparación con los nacidos de los embarazos voluntarios. Las vacunaciones antipoliomielítica, antineumocócica y antigripal inadecuadas, tener un televisor en el hogar y una menor escolaridad materna fueron factores predictivos significativos de una inmunización antirrotavírica deficiente. Por el contrario, haber recibido instrucción respecto a la lactancia materna fue un factor protector contra la inmunización antirrotavírica inadecuada. En las madres alfabetizadas, no hubo asociación alguna entre la intencionalidad del embarazo y la inmunización contra rotavirus. Conclusiones Nuestro estudio aporta evidencia que muestra que mejorar el alfabetismo en las madres podría aumentar la captación de la vacunación antirrotavírica en los niños nacidos de embarazos involuntarios.

RESUMO Objetivo Examinar a associação entre gravidez indesejada e falta de vacinação oportuna contra rotavírus em crianças peruanas. Métodos A partir de dados observacionais transversais obtidos na Pesquisa de Demografia e Saúde 2012, foi conduzida uma análise de regressão logística para estimar razões de chances ajustadas (OR aj) e intervalos de confiança de 95% (IC 95%) para a associação entre gravidez indesejada e falta de vacinação oportuna contra rotavírus em crianças. Resultados Dentre 9.620 gravidezes ocorridas nos cinco anos anteriores à pesquisa, 5.396 (56,1%) foram referidas como não intencionadas, das quais 2.981 foram não no momento certo (30,9%) e 2.415 (25,1%) indesejadas. Registrou-se falta de vacinação oportuna contra rotavírus em 5.187 crianças ao todo (54,9%; IC 95% = 53,8%-56.1%). Verificou-se que o nível de escolaridade materna é um importante modificador de efeito da associação entre intenção de engravidar e vacinação contra rotavírus (valor de P = 0,006). Nas crianças nascidas de mães sem escolaridade, observou-se uma associação significativa entre gravidez indesejada e maior chance de falta de vacinação oportuna contra rotavírus (OR aj = 2,6; IC 95% = 1,2-4,4) quando comparadas às crianças de gravidezes intencionadas. A falta de vacinação contra rotavírus prognosticou de modo significativo a falta de vacinação oportuna contra poliomielite, doença pneumocócica e gripe; possuir televisor no domicílio e menor nível de escolaridade materna. Em contraste, receber orientação sobre o aleitamento materno foi um fator protetor contra a falta de vacinação oportuna contra rotavírus. Entre as mães com escolaridade, não se verificou associação entre intenção de engravidar e vacinação contra rotavírus. Conclusão O estudo evidencia que melhorar o nível de escolaridade materna poderia contribuir para aumentar a vacinação contra rotavírus em crianças nascidas de gravidez indesejada.