Andolsek L, Teeter R A, Kozuh-Novak M, Wheeler R, Fortney J A, Rosenberg M J
Int J Gynaecol Obstet. 1986 Jun;24(3):217-23. doi: 10.1016/0020-7292(86)90100-1.
Some investigations of IUD use have demonstrated impaired ability to become pregnant after removal, while others have not. None of these studies, however, have adequately considered such potentially influencing variables as age and a history of pelvic inflammatory disease (PID). To study the effect of length of IUD use, IUD type and the modifying influences of age and PID history on time required to conceive, we followed women trying to become pregnant after removal of their IUD. Five hundred forty women in Ljubljana, Yugoslavia who were first fitted with an IUD between 1964 and 1972 and had their IUD removed in order to become pregnant were followed through 1980. We found no relationship between the duration of IUD use or type of IUD used, but increasing age and a history of PID each decreased the monthly probability of conception. These findings, along with other recent work, indicate that IUDs are a safe and efficacious contraceptive for women at low risk for sexually transmitted diseases.
一些关于宫内节育器（IUD）使用情况的调查显示，取出节育器后受孕能力受损，而其他调查则未发现此现象。然而，这些研究均未充分考虑年龄和盆腔炎（PID）病史等潜在影响变量。为研究IUD使用时长、IUD类型以及年龄和PID病史的修正影响对受孕所需时间的作用，我们对取出IUD后试图受孕的女性进行了跟踪研究。在南斯拉夫卢布尔雅那，对540名女性进行了跟踪，这些女性于1964年至1972年间首次安装IUD，之后为了受孕而取出了节育器，跟踪一直持续到1980年。我们发现IUD使用时长或所使用的IUD类型之间并无关联，但年龄增长和PID病史均会降低每月受孕概率。这些发现以及其他近期研究表明，对于性传播疾病低风险的女性而言，IUD是一种安全有效的避孕方式。
