In developing countries, public health campaigns to target ARI should consider the country's macro characteristics. At country level, inequalities but not health expenditure or GDP were associated with the disease and were independent of child, family and household characteristics. The effect of immunization on reducing ARI is greater in countries with a higher GDP and health expenditure. The effect of household wealth on ARI is less in countries with fewer inequalities. Reduction of inequalities is an important measure to decrease ARI in developing countries.

BackgroundLow birth weight (LBW) is one of the most important factors affecting child morbidity and mortality worldwide; approximately one third of neonatal deaths are attributable to it. Most research and public health policy on LBW arise from developed nations, despite that most cases (96.5%) take place in developing countries. The specific features of prenatal care that prevent LBW in developing countries are unclear. This study aims to identify the characteristics of prenatal care associated with LBW in a developing country as Colombia.MethodsObservational cross-sectional study using data from the Colombian Demographic and Health Survey 2010. A total of 10,692 children were included. Descriptive statistics were calculated, followed by bivariate regressions of LBW with all other study variables. Finally, stepwise logistic binomial regression analyses were done.ResultsA LBW prevalence of 8.7% was found. Quality of prenatal care (95%CI: 0.33, 0.92; OR = 0.55), number of prenatal visits (95%CI: 0.92, 0.93; OR = 0.92), and first prenatal visits during pregnancy (95%CI: 1.02, 1.07; OR = 1.08) were associated with LBW even after controlling for all the studied variables. The health care provider conducting prenatal checkup, and insurance coverage, were not associated with LBW.ConclusionThis research provides information on the characteristics of prenatal care (quality, number of visits, and gestational age at first prenatal visit) which may strengthen LBW prevention in Colombia and possibly in countries with similar socioeconomic characteristics.

Introducción: En Colombia, entre el año 2008 y 2014 el 23.4% de los nacimientos fueron producto de embarazos adolescentes, los cuales tienen graves consecuencias a nivel social, emocional y biológico tanto para la madre joven como para el bebé. Material y métodos: Estudio de corte transversal con componente analítico dónde se tomó una muestra representativa de 13.313 mujeres entre 13 y 19 años quienes respondieron la Encuesta Nacional de Demografía y Salud (ENDS) 2010. Se realizaron análisis bivariados y análisis de regresión logística multinomial con el fin de identificar factores individuales, del hogar y del comportamiento sexual asociados con el inicio de la vida sexual y con el embarazo en adolescentes colombianas. Resultados: A través del análisis multivariado se encontró que tener mayor edad, convivir en pareja, haber sufrido violencia parental y haber sufrido violencia sexual fueron factores de riesgo tanto para inicio de vida sexual como para embarazo adolescente. Se identificó que el hecho de estar asistiendo al colegio es un factor protector para ambos eventos. La pobreza, el hacinamiento y la falta de educación estuvieron asociados con el embarazo adolescente pero no con el inicio de la vida sexual. Conclusiones: Existen múltiples factores asociados con el inicio temprano de vida sexual y con el embarazo adolescente susceptibles de intervención. Este estudio presenta factores clave para generar programas de prevención para esta problemática.

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