OBJECTIVE To assess the extent to which women received contraceptive services within 90 days after birth at their first or subsequent visits and whether contraceptive provision was associated with optimal interpregnancy intervals. METHOD We linked California's 2008 Birth Statistical Master File with Medicaid databases to build a cohort of women aged 15-44 years who had given birth in 2008 and...

Birth interval is a major determinant of rates of fertility, and is also a measure of parental investment in a child. In this paper the length of the birth interval in a traditional African population is analysed by sex of children. Birth intervals after the birth of a boy were significantly longer than after the birth of a girl, indicating higher parental investment in boys. However, in women ...

background: in recent years, the study of birth intervals has been a main determinant of the levels of fertility in the populations, as it is associated with rates of fertility and population growth. objective: the purpose of this study was to firstly apply survival analysis for modeling of first birth interval and secondly to explore its determinants. materials and methods: in a cross sectiona...

per birth interval were those published for the following interval (eg, 2005 estimates used for 1996e2000 births). Results From 1986 to 2000, 321 DBMD males resided in an MD STARnet site during one or more birth intervals, which produced a prevalence of 1/5000 residents. Race/ethnic-specific prevalence tended to be higher for Hispanics than non-Hispanic whites or African-Americans. Prevalence t...