NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Public Health School, Fudan University, Shanghai 200032, China.
NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai 200032, China.
Int J Environ Res Public Health. 2019 Sep 9;16(18):3305. doi: 10.3390/ijerph16183305.
Our aim was to assess the changes in induced abortion in different migrant groups in China between 2007 and 2014 and the contraceptive methods used prior to induced abortion.
The studies of two population-based cross sections were conducted in urban China, involving 9146 sexually active migrant women. Within the selected sociodemographic subgroups, the changes in the percentage of women who had induced abortions, the proportion of pregnancies ending in induced abortions, the causes of induced abortions, and the methods of contraception were identified. A chi-squared test was used to calculate the differences in induced abortion in the subgroups.
Between 2007 and 2014, in the study groups from the major cities of China, the percentage of sexually active migrant women who had induced abortions increased 10.1%, from 21.8% to 24.0%. The proportion of pregnancies ending in induced abortions increased 23.7%, from 21.5% to 26.6%. Both of the aforementioned statistics increased significantly within most of the selected sociodemographic subgroups, especially in the 18-19 and 45-49 age groups. Over 50% of pregnancies were aborted in the cohabiting group, although this figure declined by 12.3% over the course of the seven-year study period. Contraceptive failure was the primary cause of induced abortion, although its contribution to induced abortion declined from 51.3% to 42.4%. The proportion of women not using contraception prior to induced abortion increased from 30.9% to 41.2%.
The prevalence of induced abortion is high and continues to increase among sexually active migrant women in China. An increasing trend is forecasted over the next few decades. Special attention should be paid to the younger cohort of migrant women, especially 18-19-year-olds, and unmarried cohabitants, who are increasingly seeking induced abortions.
评估 2007 年至 2014 年间中国不同流动人口群体中人工流产的变化，以及人工流产前使用的避孕方法。
在中国进行了两项基于人群的横断面研究，共纳入 9146 名有性行为的流动人口妇女。在所选择的社会人口亚组内，确定了人工流产妇女的百分比、妊娠人工流产结局的比例、人工流产的原因以及避孕方法的变化。采用卡方检验比较亚组间人工流产的差异。
2007 年至 2014 年间，在中国主要城市的研究人群中，有过人工流产经历的流动人口妇女比例从 21.8%上升至 24.0%，增加了 10.1%。妊娠人工流产结局的比例从 21.5%上升至 26.6%，增加了 23.7%。在大多数选定的社会人口亚组中，这两个统计数据均显著增加，尤其是在 18-19 岁和 45-49 岁年龄组。虽然在这七年的研究期间，同居组的人工流产比例下降了 12.3%，但仍有超过 50%的妊娠被终止。避孕失败是人工流产的主要原因，尽管其在人工流产中的占比从 51.3%下降至 42.4%。人工流产前未使用避孕措施的妇女比例从 30.9%上升至 41.2%。
在中国有性行为的流动人口妇女中，人工流产的流行率很高且持续上升。预计未来几十年内这一趋势还将继续。应特别关注年轻的流动人口妇女群体，尤其是 18-19 岁的未婚同居者，她们越来越多地寻求人工流产。
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