Contraceptive method switching in the United States.

摘要: CONTEXT: Switching among contraceptive method types is the primary determinant of prevalence use specific methods, and it has direct implications for women’s ability to avoid unintended pregnancies. Yet, switching U.S. women received little attention from researchers. METHODS: Data 1995 National Survey Family Growth were used construct multiple-decrement life tables explore gross rates married unmarried women. Within each group, discrete-time hazard models estimated determine how characteristics affect their behavior. RESULTS: Overall are high both (40% 61%, respectively). Married two-year vary 30% who implant, injectable, IUD or other reversible methods 43% nonusers, while 33% injectable 70% nonusers. Multivariate analyses according indicate that women, without children less likely than adopt sterilization a long-term (the IUD). Older have higher rate younger counterparts sterilization, but also more continue using no method. Among highly educated condom dual methods. CONCLUSIONS: Women’s decisions may be driven primarily by concerns related level duration effectiveness, health risks associated with and, single sexually transmitted disease prevention. Perspectives on Sexual Reproductive Health, 2002, 34(3):135‐145