Kalmuss D S
J Adolesc Health Care. 1986 Sep;7(5):332-7. doi: 10.1016/s0197-0070(86)80161-9.
There is controversy about how the experience of a teenage pregnancy affects the contraceptive behavior of adolescent women. Data from 425 sexually active, unmarried teenage women who had access to contraception were used to address this issue. Chi-square tests suggest that ever-pregnant teens are significantly less likely to have used contraception at last intercourse than never-pregnant teens. This finding persists when comparing never-pregnant teens to subgroups of ever-pregnant adolescents whose contraceptive behavior was expected to have been affected positively by their pregnancy. Logistic regression results show a significant pregnancy-history effect after controlling for other important predictors of teenage contraceptive behavior. Additional analysis suggests that the negative effect of pregnancy history may occur because ever-pregnant teens hold more positive attitudes about pregnancy than their never-pregnant peers.
青少年怀孕的经历如何影响青春期女性的避孕行为，这一问题存在争议。本研究使用了425名有避孕途径的性活跃未婚青少年女性的数据来探讨这一问题。卡方检验表明，曾怀孕的青少年在最后一次性行为时使用避孕措施的可能性明显低于未怀孕的青少年。将未怀孕的青少年与预期避孕行为会因怀孕而受到积极影响的曾怀孕青少年亚组进行比较时，这一发现依然存在。逻辑回归结果显示，在控制了青少年避孕行为的其他重要预测因素后，怀孕史仍有显著影响。进一步分析表明，怀孕史产生负面影响的原因可能是，曾怀孕的青少年对怀孕持比未怀孕同龄人更积极的态度。
