this one year retrospective study was conducted in mirza kuchak khan maternity hospital, tehran, 1989-1990, to compare complications of pregnancy in adolescent (below 20 years old ) and young adult (20-24 years old) mothers. the results were as follows: 14.4% of all the deliveries during the period of study were adolescent mothers. the proportions of the following complications were higher in t...

In a marsh-breeding population of red-winged blackbirds, the sex ratio of offspring that survived to leave the nest varied with maternal age. Old mothers produced an excess of male fledglings, middle-aged mothers produced almost equal proportions of males and females, and young mothers produced nearly twice as many females as males. More males than females hatched from the eggs of old mothers, ...

INTRODUCTION Young mothers' families are at increased risk of child maltreatment and other poor health and social outcomes. METHODS Chi-square analyses of pooled child welfare services data from the Canadian Incidence Study of Reported Child Abuse and Neglect (CIS-2003; CIS-2008) were used to compare 284 teen mothers (18 years or younger) and 800 young mothers (19-21 years) and their families...

Early social exposure is important for developing appropriate, species-specific adult behaviors. Carson Murray et al. (pp. 18189–18194) followed wild chimpanzees, habituated to human observers, in Gombe National Park, Tanzania, and analyzed maternal subgrouping patterns to investigate why adult males tend to be more gregarious than adult females. Mothers accompanied by their sons were more greg...

Adults with HIV are living longer due to earlier diagnosis and increased access to antiretroviral medications. Therefore, fewer young children are being orphaned and instead, are being cared for by parents who know they are HIV positive, although they may be asymptomatic. Presently, it is unclear whether the psychological functioning of these young children is likely to be affected or, alternat...

The present study used data from several sources to 1) present information on mothers and births in a single state (Delaware); 2) present cost data to estimate health-related birth real costs; and 3) use the data to estimate the costs and impact on mothers, health care providers, and taxpayers. In addition, this study explicitly examined costs of births through the lens of unplanned/unintended ...