Factors related to drug consumption during pregnancy.

A survey on drug intake during pregnancy was carried out in a sample of 3268 women who delivered live-born infants in 11 hospitals located throughout Italy. A large questionnaire on drug use and other aspects of maternal life-style was administered within five days of delivery to 3112 women who consented to the interview. An overall mean consumption of 2.17 drugs per woman was reported. Apart from dietary supplements, the most used drugs were tocolytics, analgesics, and antibiotics. The proportion of women who did not use any drug was 17.3%. The role of some non-medical determinants of drug intake was evaluated as well. Geographic and socio-economic factors were seen to increase drug intake up to 44%, while the presence of anxiety provoked a 60% higher consumption of drugs other than dietary supplements. Other factors influencing drug use during pregnancy were rural vs. urban residence and smoking habits. The need for the recording of these socio-economic factors in surveys on drug use during pregnancy is emphasized.