Tarqui-Mamani Carolina, Barreda Alejandro, Barreda Milagros, Sanabria-Rojas Hernán
Instituto Nacional de Salud, Lima, Perú.
Rev Peru Med Exp Salud Publica. 2010 Mar;27(1):38-44. doi: 10.1590/s1726-46342010000100007.
To estimate the prevalence for the attempts to stop pregnancy among women with history of previous pregnancies, and to determine the factors associated.
A cross-sectional study was performed during 2006. Samples included 1057 women with background of pregnancy, living in Pamplona Alta, selected by a systematic random sampling. We applied descriptive and inferential statistics, including a logistic regression model.
The prevalence for the attempt to stop pregnancy was 13.9% (99% CI: 11.1-16.7). The factors associated identified by multivariate analysis were: Unwanted pregnancy (OR=5.7; CI: 1.9-16.7), lack of pre-natal care (OR=4.7; CI: 1.8-12.2), prostitution (OR=11.4; CI: 1.5-87.9), age below 20 years (OR=2.9; CI: 1.1-7.9), and having more than two partners (OR=3.3; CI: 1.1-10.2).
The estimated prevalence for the attempt to stop pregnancy among women with history of previous pregnancies in a marginal suburban area from Lima was low when compared to the national estimated prevalence of abortion. The associated factors identified for the attempts to stop pregnancy are: unwanted pregnancy, prostitution, age below 20 years, having more than two partners and lack of pre-natal care.
估算有既往妊娠史的女性中尝试终止妊娠的患病率，并确定相关因素。
于2006年开展了一项横断面研究。样本包括1057名有妊娠史的女性，她们居住在阿尔塔潘普洛纳，通过系统随机抽样选取。我们应用了描述性和推断性统计方法，包括逻辑回归模型。
尝试终止妊娠的患病率为13.9%（99%可信区间：11.1 - 16.7）。多变量分析确定的相关因素有：意外妊娠（比值比=5.7；可信区间：1.9 - 16.7）、缺乏产前护理（比值比=4.7；可信区间：1.8 - 12.2）、从事性交易（比值比=11.4；可信区间：1.5 - 87.9）、年龄低于20岁（比值比=2.9；可信区间：1.1 - 7.9）以及有两个以上性伴侣（比值比=3.3；可信区间：1.1 - 10.2）。
与全国估计的堕胎患病率相比，利马一个边缘郊区有既往妊娠史的女性中尝试终止妊娠的估计患病率较低。确定的与尝试终止妊娠相关的因素有：意外妊娠、从事性交易、年龄低于20岁、有两个以上性伴侣以及缺乏产前护理。
