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将产后准备选择ＩＵＤ避孕的３８４例阴道分娩产妇（９８．７０％ 是首次分娩），随机分为两组，于胎盘娩出后１０ ｍ ｉｎ 内徒手放置（１８９例）或卵园钳放置（１９５例） ＴＣｕ ３８０Ａ ＩＵＤ。以生命表法统计、χ２检验比较这两种不同放置方法放置后６、１２、２４ 和３６ 个月的脱落率和其他停用率。３８４ 例无一发生子宫穿孔、大出血、感染或恶露延长。放置后主要停用原因是脱落。两组６～３６ 个月各项停用指标（脱落、妊娠、因出血／疼痛取出等）的粗累积率均无显著差异（Ｐ＞ ０．０５）。研究认为，不同放置方法对阴道分娩ＩＰＰＩ效果无明显影响；ＴＣｕ ３８０ＡＩＵＤ是适合中国妇女产后立即放置的。本文还对影响ＩＰＰＩ脱落率的因素如哺乳和ＩＵＤ在宫腔内位置等进行了讨论。
A total of 384 vaginal deliveries (98.70% of first births) were selected after IUD contraception for postpartum and were randomly divided into two groups. They were placed manually (n = 10) within 10 mins after placenta delivery (195 cases) TCu 380A IUD. By the life table method, the χ2 test compared the drop rates and other discontinuation rates at 6, 12, 24 and 36 months after the two different placement methods were placed. None of the 384 patients had uterine perforation, bleeding, infection or prolonged lochia. The main reason for deactivation is to drop off after placement. There was no significant difference (P> 0.05) in the crude accumulation rate of all the withdrawal indicators (exfoliation, pregnancy, hemorrhage / pain removal) between 6 and 36 months in both groups. The study suggests that different placement methods have no significant effect on vaginal delivery of IPPI; TCu 380AIUD is suitable for Chinese women placed immediately after delivery. This article also discusses factors that affect IPPI shedding such as lactation and IUD location in the uterine cavity.