[The course of pregnancy in a representative Swiss sample (Aarau Pregnancy and Newborn Infant Study). II. Stimulants in pregnancy].

Within the framework of a study on the course of pregnancy, a cohort of 996 Swiss mothers was interviewed upon admission for delivery at Aarau Maternity Hospital regarding nicotine, alcohol, caffeine and narcotics consumption. The data are presented and compared with analogous data on the entire female population of the same age group in Switzerland and with epidemiologic reviews of pregnancy events from other countries. The relationship between these data and effects on the newborn is also discussed. This group of mothers aged 20-40 years had, even prior to pregnancy, below-average alcohol and nicotine consumption. During pregnancy nicotine use in the last trimester, though reduced, was still admitted by 18% of the gravidae despite the fact that about 3/4 of the mothers were well informed about detrimental effects on the offspring. Nicotine use by the mother had several somatic effects on the newborn, in contrast to consumption of caffeine and small amounts of alcohol. The behavioral assessment was altered by previous use of nicotine and caffeine.