Background. Despite reluctance to conceive, similar to 30% of couples do not use any method of contraception. Health concerns, side effects, failure of the method and some demographic issues such as education, age, residential region and number of living children have a major effect on contraceptive use. Objective. The aim of the present study was to determine those factors which influence contraceptive use in Tehran. Methods. Data from the project 'The Study of the Effectiveness of Postpartum Consultation about Family Planning on Contraceptive Practice during 2 years after Parturition in University Hospitals of Tehran in 1996' were applied for the analysis of those factors which influence contraceptive use by Iranian couples. A total of 4177 women of reproductive age who gave birth in one of the 12 hospitals in Tehran during the 24 hours following the interview of the initial study and had at least one living child were enrolled in the present study. The questionnaire used included some questions about socio-demographic status, fertility history, knowledge of contraceptives and the source of this knowledge, and previous contraception practice and its effectiveness. Results. Using a logistic regression model, it was found that age, women's level of education, their husbands' level of education and previous familiarity with contraceptive methods were the most significant factors influencing contraceptive use. Conclusions. It is suggested that health policy makers strengthen the family planning services through providing appropriate counselling in family planning clinics.
