BACKGROUND Brazil has witnessed dramatic changes in its fertility patterns in recent decades. The decline to below-replacement fertility has been accompanied by increases in the proportion of children born to young mothers. Yet we know little about the well-being of children born to young mothers in Brazil. OBJECTIVE AND METHODS Using data from the 2006 Pesquisa Nacional de Demografia e Saúde...

The low school attainment, early marriage, and low age at first birth of females are major policy concerns in less developed countries. This study jointly estimated the determinants of educational attainment, marriage age, and age at first birth among females aged 12-25 in Madagascar, explicitly accounting for the endogeneities that arose from modelling these related outcomes simultaneously. An...

OBJECTIVES To identify factors associated with sexual debut and early age at first sex (AFS) among young men and women (12-25 years) in a population with a high prevalence and incidence of HIV in rural South Africa. METHODS Longitudinal data from four rounds (2003-7) of a prospective population-based HIV and sexual behaviour survey in rural KwaZulu-Natal were used to investigate the distribut...

Hereditary breast cancer shows a distinctive natural history characterised by an earlier age of onset, excess bilaterality, vertical transmission, heterogeneous tumour associations, and improved survival when compared to its sporadic counterpart. To date, very little attention has been given to interrelationships between breast cancer risk factors and genetics. In the general population, early ...

AIMS To measure the degree and direction of errors in recall of age at first sex. METHOD Participants were initially recruited in 1994-1995 (Wave I) with 3 subsequent follow-ups in: 1996 (Wave II); 2001- 2002 (Wave III); and 2007-2008 (Wave IV). Participants' individual errors in recall of their age at first sex at Wave IV were estimated by the paired difference between responses given for ag...

Besides interrupting a woman’s education, early childbearing is associated with numerous adverse outcomes. Young teen mothers are at an increased risk of delivering low birth weight (< 2500g) and/or preterm (< 37 weeks gestation) births, experiencing physical violence, and living in poverty. Further, one limited study has shown that children of young teen mothers are more likely to have lower e...