2006/12/01 by John Santelli, Laura Lindberg, Lawrence B. Finer +1 · 5 citations
Medicine · Health Professions · #Reproductive Health and Contraception #Adolescent Sexual and Reproductive Health #Global Maternal and Child Health
paper · doi:10.2105/ajph.2006.089169
openalex publication_date 2006/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/07
OBJECTIVES: We explored the relative contributions of declining sexual activity and improved contraceptive use to the recent decline in adolescent pregnancy rates in the United States. METHODS: We used data from 1995 and 2002 for women 15 to 19 years of age to develop 2 indexes: the contraceptive risk index, summarizing the overall effectiveness of contraceptive use among sexually active adolescents (including nonuse), and the overall pregnancy risk index, calculated according to the contraceptive risk index score and the percentage of individuals reporting sexual activity. RESULTS: The contraceptive risk index declined 34% overall and 46% among adolescents aged 15 to 17 years. Improvements in contraceptive use included increases in the use of condoms, birth control pills, withdrawal, and multiple methods and a decline in nonuse. The overall pregnancy risk index declined 38%, with 86% of the decline attributable to improved contraceptive use. Among adolescents aged 15 to 17 years, 77% of the decline in pregnancy risk was attributable to improved contraceptive use. CONCLUSIONS: The decline in US adolescent pregnancy rates appears to be following the patterns observed in other developed countries, where improved contraceptive use has been the primary determinant of declining rates.