| 李瑛,高小刚,杨明明,王京玲,钱绍祯.四种宫内节育器的实验流行病学研究[J].Chinese journal of Epidemiology,1989,10(6):355-358 |
| 四种宫内节育器的实验流行病学研究 |
| An Experimental Epidemiologic Study of 4 Different IUDs |
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| DOI： |
| KeyWord: 实验流行病学 宫内节育器 单盲法 终止率 |
| English Key Word: Experimental epidemiologic study IUD Singleblind Termination rate |
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| Abstract: |
| 本文平行对比了宫形器、不锈钢环、多荷铜250和T铜220C四种宫内节育器在农村妇女中的使用效果。对分娩后3~9个月应采取避孕措施的哺乳期妇女711名,用实验流行病学的方法,严格控制有关干扰因素,用单盲法随机进入各组。置器后第1、3、6、12、24个月进行随访,用Tietze寿命表法计算四种节育器的继续存放率,用Log rank检验停用率,评价其使用效果。结果表明:不锈钢环二年的累计存放率最低,与其它三种节育器有极显著差异。多荷铜250与T铜220C的使用效果相似,但就出血疼痛副作用而言,多荷铜250低于T铜220C。 |
| English Abstract: |
| In dafeng county of Jiangsu province, 710 healthy women, aged 22-32 years,were randomly allocated to use one of the title IUDs 3-9 months postpartum in a single-blind manner. UCD is an inert stainless steel device assuming the shape of the uterine cavity, i.e., isosceles triangular-shaped.The study was designed to be completed in 2 years, and presently, 2 year data were presented.Results show that there were significant differences in the crude and cumulative termination rates of the 4 groups as analyzed by the logrank test. Besides,the crude termination rater of SSR was significantly higher than those of the other 3 IUDs (P<0.01). The main reasons for discontinuation of SSR were pregnancy and expulsion.In regard to the removal due to bleeding and pain, MLCu250 seemed to be the best,followed by UCD,and TCu 220C was the worst. |
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