Repeated adolescent pregnancy in Brazil from 2015 to 2019.

Objective: The aim of this study was to assess the rate of repeated pregnancy in adolescence and its association with early marriage and education level.

Methods: This is a cross-sectional study conducted by searching the Live Births Data System. The study included all adolescents in the age group 10-19 years with live births from 2015 to 2019 (n=2,405,248), divided into three groups: G1: primiparas; G2: with 1 previous pregnancy; and G3: with two or more previous pregnancies.

Increase in fertility rate before the age of 14 in Brazil from 1996 to 2018.

Objective: This study aimed to assess live birth frequency and age-specific fertility rates (ASFR) in the period 1996-2018 and the number of pregnancies at <14 years old in the period 2012-2018.

Methods: This was a cross-sectional study conducted by search on Live Births Data System (SINASC/DATASUS) database.

Results: There was a variation in ASFR in Brazil of 0.

Adolescent pregnancy trends in the last decade.

Introduction: Teenage pregnancy is a universal phenomenon, with higher prevalence in developing countries. Although there has been a reduction in Brasil since the year 2000, the age-specific fertility rate for this age group remains high.

Objective: To evaluate the frequency of adolescence pregnancy in in Brasil from 2006 to 2015 and its association with the Human Development Index (HDI).