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本文观察了放置含药宫内节育器(IUD)钥匙形(K-LNG-IUD,2号)、菱形(C-LNG-IUD,3号)、改进NoVaT型(LNG-CU-IUD,4号)和TCu-220 C(1号)各100例妇女使用18个月的避孕效果和可接受性。结果续用率以1号最高,达86.0％,4号最低,仅65.1％(P<0.05);妊娠率2号达2.0％,4号为0(P>0.05);脱落率3号达8.9％,4号仅1.0％(P<0.05);因症取出率4号达29.3％,明显高于其他3种(P<0.05)。3种LNG-IUD各有优缺点,在推广使用之前,尚需进一步调整药物释放量、改进IUD的形状和工艺。
In this paper, we observed the effects of placing key IUDs (K-LNG-IUD, No. 2), rhombus (C-LNG-IUD No. 3), and NoVaT (LNG-CU-IUD No. 4 ) And TCu-220 C (No. 1) for each of the 100 women using 18-month contraceptive efficacy and acceptability. The results continued to the highest rate of 1, 86.0%, the lowest number 4, only 65.1% (P <0.05); pregnancy rate of 2.0% on the 2nd, No. 4 was 0 (P> 0.05) %, Only 1.0% on the 4th (P <0.05). The rate of removing the disease on the 4th was 29.3%, which was significantly higher than the other three (P <0.05). Each of the three kinds of LNG-IUDs has its own advantages and disadvantages. Before being widely used, the amount of drug release needs to be further adjusted to improve the shape and process of the IUDs.