Objective To study the incidence of abortion in young unmarried women and to provide basis for promoting women 's reproductive health. Methods All the women asking for painless artificial abortion voluntarily from 2009 to 2011 in Guangwai Hospital were included in the study. Their basic situation, past and present abortion were surveyed . Key investigation was on the repeated abortion rate and abortion rate of women under 20. Results The average constituent ratio of women under 20 was 7. 12% , and there was a rising trend. The constitution rate was 5.24% , 7. 10% and 9.26% , respectively in three years (χ2= 6. 71 ,P <0. 05). The average repeated abortion rate within a year was 35.49% , and there was no significant difference among three years (trend χ2=3. 33,P>0. 05). But the proportion of women under 20 with repeated abortion increased year by year , and it was 1.49% , 3. 92% and 9. 09% , respectively in 2009,2010 and 2011 (trend χ2 =6.41, P<0. 05). Conclusion The abortion rate of young unmarried women and the proportion of them with repeated abortion increase year by year. To avoid repeated abortion rate , especially repeated abortion of young unmarried women has become a pressing matter of the moment.%目的 了解低龄未婚女性人工流产发生率,为促进女性生殖健康提供依据.方法 以2009至2011年在北京市西城区广外医院自愿行无痛人工流产的全部妇女为研究对象,调查人工流产妇女的基本情况、既往和本次流产情况,重点调查一年内重复流产率及年龄小于20岁的流产率.结果 年龄≤20岁占人工流产总人数构成比平均为7.12%,3年来呈逐渐上升趋势,分别为5.24%,7.10%和9.26%(趋势χ2=6.71,P<0.05).一年内重复流产率平均为35.49%,3年间无显著性差异(趋势χ2=3.33,P>0.05).但是年龄≤20岁重复流产人数占总重复流产人数的比例逐年增加,2009年至2011年分别为1.49%,3.92%和9.09%(趋势χ2=6.41,P<0.05).结论 低龄未婚女性人工流产率和重复流产比例逐年增加,避免重复流产率,尤其是低龄未婚女性重复流产已成为当务之急.
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