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The Use-Effectiveness of Combining Three Contraceptive

机译：三种避孕药结合使用的效果

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A total of 240 women, age 17-40 years, in rural areas in the west of Tabrize city, with self- reported cycles of 26-32 days, desiring to delay pregnancy at least one year were admitted to the study. After teaching the method to the subjects, they followed-up for 12 months to complete the study or dropped out from the study. Only 8 pregnancies occurred during the study and a total of 1956 months were contributed by the 240 study participants. So first-year pregnancy rate was 4.91% and percentage of protection of unplanned pregnancy was 95.09 without considering the correct or incorrect use. Results indicate that this combined method is able to provide a significant protection from unplanned pregnancy and is acceptable to the couples.
机译：在塔布里兹市西部的农村地区，共有240名年龄在17-40岁之间的妇女，自我报告的周期为26-32天，希望延迟怀孕至少一年。在向受试者讲授方法后，他们进行了12个月的随访以完成研究或退出研究。在研究期间仅发生了8次怀孕，240位研究参与者总共贡献了1956个月的怀孕。因此，不考虑正确或不正确使用方法的情况下，第一年妊娠率为4.91％，计划外妊娠的保护百分比为95.09。结果表明，这种组合方法能够为意外怀孕提供重要的保护，并且是夫妻双方都可以接受的。

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