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目的:支架型IUD和无支架型IUD的避孕效果及不良反应发生情况。方法:采用随机对比试验,试验对象为750名25～40岁健康已婚育龄妇女需求或自愿使用IUD,并有条件接受随访2年者。随机给450名妇女放置吉妮致美环且给另外300名放置欣悦环;并于放置后1个月、3个月、6个月、1年、2年对其避孕效果,副反应进行观察。结果:致美组在去除子宫过软或子宫过度前后屈所致的脱落因素外?,脱落率显著低于欣悦环(P<0.01),带器妊娠率显著低于欣悦环(P<0.05),带器后出血率显著低于欣悦环(P<0.01)。结论:无支架型IUD与有支架型IUD相比,放置后脱落率低、副反应少,放置时间长,可被广大育龄妇女接受。
OBJECTIVE: The contraceptive efficacy and adverse reactions of stent-type IUD and stent-less IUD were investigated. Methods: A randomized controlled trial was conducted on 750 women who were married at a healthy age of 25 to 40 years who needed or voluntarily used IUD and were eligible for 2 years follow-up. A total of 450 women were placed in the Ginny to the United States ring and another 300 to place the ring of pleasure; and contraception was observed at 1 month, 3 months, 6 months, 1 year and 2 years after placement . Results: The exfoliation rate was significantly lower than that of Xin Yue ring (P <0.01), and the pregnancy rate of the device was significantly lower than that of Xin Yue ring (P <0.05) ), The rate of hemorrhage with band was significantly lower than that of Xinyue ring (P <0.01). Conclusion: Compared with stent-type IUD, stentless IUD has the advantages of low exfoliation rate, fewer side effects and long placement time, which can be accepted by women of childbearing age.