目的 探讨干预措施对再次发生意外妊娠的妇女避孕节育知识水平和行为的作用,以寻求降低重复人工流产率的对策.方法 采用干预性研究方法,对北京市海淀区969名发生再次意外妊娠的妇女进行随访1年的研究.结果 干预后,短效避孕知识知晓和掌握评分均增加了高分组;完全不掌握长效避孕方法构成比下降了11.35%,掌握1种长效避孕方法者增加了12.38%;紧急避孕知识评分5分组构成比增加了64.19%.干预前和干预后的1个月、3个月、6个月、12个月避孕节育率分别为45.20%、60.06%、94.07%、96.95%和96.96%,随着干预时间的延长,避孕节育率显著增加(趋势χ2=1 116.92,P=0.000).结论 对流产后妇女进行避孕节育知识和行为的干预,可有效地提高避孕节育知识水平和避孕节育行为,且最佳开展干预时间在术后3个月内.%Objective To assess the impact of interventions of contraceptive knowledge and behavior on women with recurrent unplanned pregnancy, so as to seek measures to reduce the rate of repeated reduced abortion. Methods An intervention study was conducted on 969 women with recurrent unplanned pregnancy for one year follow-up in the Haidian District. Results After the intervention, awareness and mastery of short-acting contraceptive knowledge scores increased in the high score group. The constituent ratio of non-mastery of long-acting contraceptive knowledge reduced by 11. 35％ , while that of mastery of one long-acting contraceptive method increased by 12. 38％ . The constituent ratio of emergency contraception knowledge of 5 score group increased by 64. 19％. The contraception rates were 45. 20％ , 60.06％ , 94.07％ , 96. 95％ and 96. 96％ respectively in the time of before intervention, 1 month after intervention, 3 months after intervention, 6 months after intervention and 12 months after intervention. As the increasing of intervention time, the contraception rate increased significantly (x2 = 1 116. 92, Ptrend =0.000 ). Conclusion Intervention of contraceptive knowledge and behavior for women after abortion can effectively enhance the level of contraceptive knowledge and contraceptive behavior, and the best time to carry out is within 3 months after abortion.
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