Kusseling F S, Wenger N S, Shapiro M F
Department of Medicine, University of California, Los Angeles, USA.
J Am Coll Health. 1995 Mar;43(5):191-5. doi: 10.1080/07448481.1995.9940475.
The authors evaluated the longitudinal consistency of use of contraceptive and barrier methods among female college students attending a student health clinic. The majority of students using unreliable methods of contraception during follow-up did not report unreliable contraceptive use at the baseline observation. Of 213 women who participated, 33% used unreliable contraception; 9% only at baseline, 14% only during 6-month follow-up, and 9% at both. Selection of a contraceptive method varied considerably over time. Of those using the oral contraceptive pill at baseline, 31% did not use this method during follow-up, and 43% of those using condoms at baseline had intercourse without a condom during follow-up. Single observations are inadequate to detect unreliable contraceptive use in this population; cross-sectional studies will fail to detect important transitions in contraceptive use. Interventions to prevent pregnancy and sexually transmitted disease among female college students should include a focus on the consistency of contraceptive use.
作者评估了在学生健康诊所就诊的女大学生使用避孕和屏障方法的纵向一致性。在随访期间使用不可靠避孕方法的大多数学生在基线观察时并未报告使用不可靠的避孕方法。在参与研究的213名女性中，33% 使用不可靠的避孕方法；9% 仅在基线时使用，14% 仅在6个月随访期间使用，9% 在基线和随访期间均使用。避孕方法的选择随时间有很大差异。在基线时使用口服避孕药的人中，31% 在随访期间未使用该方法，在基线时使用避孕套的人中，43% 在随访期间有无避孕套性行为。单次观察不足以检测该人群中不可靠的避孕方法使用情况；横断面研究将无法检测到避孕方法使用中的重要转变。预防女大学生怀孕和性传播疾病的干预措施应包括关注避孕方法使用的一致性。
