Teenage pregnancy in Scotland: trends and risks.

Teenage pregnancy, considered to be associated with social and medical risks, is seen as a growing problem. Population based information from the Registrar General (Scotland) and Notification of Abortion permitted an analysis of the trends in the numbers, rates and outcomes of pregnancies among women aged less than 20 years. In addition, clinical information is available on all deliveries in Scottish hospitals from the standard hospital discharge document permitting analysis of the association of defined complications with age. Contrary to current perceptions, pregnancies and births among teenagers are not more frequent in 1988 when compared to 1975. There has been, however, a large increase in births to single women, a group with particular problems. The obstetric risks when compared to older women, are small and probably socially, not age related. These include a slightly higher rate of pre-term delivery and low birthweight and a later presentation for specialist antenatal care. The proportion of pregnancies affected by neural tube defects which are terminated is lower among women under 20. These medical risks are small, however, compared to the well-documented social and economic problems which will have long term and indirect effects on health.