金塑混合环等三种宫内节育器比较性研究

A Comparative Study of 3 Types of IUD

本文总结了不锈钢金属单环(金单)、金属塑料混合环(金塑)及TCu220C三种宫内节育器前瞻性观察3年的结果。共接收对象1,199例,3年中失访4例,随访率达99.67%。放置12、24与36个月时的每百妇女累积续用率分别为金单73.76%、66.73%与65.47%;金塑80.86%、72.33%与69.32%;TCu220 C 94.46%、88.42%与83.13%。TCu 220 C的脱落率和妊娠率非常显著地低于金单和金塑(P<0.01),金单的脱落率高于金塑(P<0.05～0.01),而两者的妊娠率无显著差异(P>0.05)。三种IUD因出血取出率均无显著差异(P>0.05)。

This paper summarizes the results of prospective observation of 3 types of IUD:thestainless steel ring,the steel-plastic ring and TCu 220 C.A total number of 1,199 caseshad been received.Among them,4 cases being lost,the follow-up rate was 99.67%.Inthe steel ring group,the cumulative continuation rates per 100 women were 73.36%,66.73%and 65.74% at the end of 12, 24 and 36 months respectively;80.86%,72.33% and69.32% respectively in the steel-plastic ring group;94.46%,88.42% and 83.13% respec-tively in the TCu 220 C group.The TCu 220 C group exhibited a significantly lower ex-pulsion and pregnancy rate than the other two groups(P<0.01).The steel ring groupexhibited a significantly higher expulsion rate than the steel-plastic ring group(P<0.05～0.01),but the pregnancy rates were not significantly different in the 2 groups(P>0.05).The discontinuing rate due to bleeding was not significantly different with the 3 types ofIUD(P>0.05).