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目的:进一步确认米非司酮25mg用于紧急避孕的有效性。在全国11个省市的计划生育技术指导站及综合医院妇产科观察了622例紧急避孕的临床效果,均为避孕失败或无保护性生活后72小时内就诊并符合条件的健康妇女,单次口服米非司酮25mg。结果:失败5例,按Dixon法计算,避孕有效率为91.25％。受试者的月经周期无明显改变且未出现明显副作用。此研究进一步证实米非司酮25mg单次口服可作为理想的紧急避孕药物。
Objective: To further confirm the effectiveness of mifepristone 25mg for emergency contraception. The clinical effects of 622 emergency contraception cases were observed in the family planning technical guidance stations and general hospital obstetrics and gynecology departments in 11 provinces and cities in the country. All of them were healthy women who met the criteria within 72 hours after contraception failure or unprotected life. Oral mifepristone 25mg. Results: Five cases failed. According to the Dixon method, the effective rate of contraception was 91.25%. Subjects had no significant changes in the menstrual cycle and no apparent side effects. This study further confirmed that mifepristone 25mg single oral can be used as an ideal emergency contraception.