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[Teenage pregnancy and prematurity in Brazil, 2011-2012]
André Henrique do Vale de Almeida1,2, Silvana Granado Nogueira da Gama2, Maria Conceição Oliveira Costa1
1Universidade Estadual de Feira de Santana, Feira de Santana, Brasil.
Insights
Teenage pregnancy is linked to higher risks of premature birth, especially for younger adolescents. This study highlights disparities and the urgent need for maternal and child health interventions.
Area of Science:
- Public Health
- Maternal and Child Health
- Epidemiology
Background:
- Teenage pregnancy remains a significant global health concern.
- Prematurity is a leading cause of neonatal mortality and morbidity.
- Socioeconomic and regional disparities influence adolescent maternal health outcomes in Brazil.
Purpose of the Study:
- To investigate the association between teenage pregnancy and the risk of premature birth.
- To analyze disparities in maternal care and socioeconomic factors among different age groups of mothers.
- To identify specific age-related risks for prematurity in adolescent mothers.
Main Methods:
- Utilized data from the national 'Birth in Brazil' study (n=23,894).
- Employed propensity score matching to control for confounding variables in a non-experimental design.
- Defined prematurity as gestational age < 37 weeks and term birth as 37 to 41 weeks and 6 days.
Main Results:
- Teenage mothers were concentrated in less developed regions and lower economic classes.
- Younger adolescent mothers showed significantly higher odds of spontaneous prematurity (OR = 1.49) compared to older adolescents.
- Young adult mothers also exhibited increased odds of prematurity (OR = 2.38) compared to older adolescents.
Conclusions:
- Teenage pregnancy is associated with an elevated risk of prematurity.
- Younger adolescent mothers face a particularly high risk of spontaneous prematurity.
- Addressing teenage pregnancy is crucial for improving maternal and child health outcomes and reducing prematurity rates.
Abstract:
The study aims to evaluate the association between teenage pregnancy and prematurity. The data are from the Birth in Brazil study, a national survey consisting of 23,894 postpartum women and their newborn infants. The information was obtained from interviews with the mothers during their postpartum hospital stay. A matching method was established, based on propensity scores, to deal with differences between the groups due to the non-experimental design of the Birth in Brazil study. The study outcome was gestational age, considering all the premature births (gestational age < 37 weeks) and term births (gestational age 37 weeks to 41 weeks and 6 days). The study revealed social, economic, and maternal care disparities between the women according to age bracket. The highest proportions of teenage mothers were in the least developed regions of Brazil (North and Northeast) and in the poorest economic classes. After matching for socioeconomic and obstetric care characteristics, the highest odds of spontaneous prematurity were seen in younger adolescents compared to older adolescents (OR = 1.49; 95%CI: 1.07-2.06), and young adults (OR = 2.38; 95%CI: 1.82-3.12). Prematurity is still an issue in the field of maternal and child health, and the association with teenage pregnancy identified in this study is worrisome, especially because younger adolescent mothers were associated with higher odds of spontaneous prematurity.
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