Joyce T, Kaestner R, Korenman S
Department of Economics and Finance, Baruch College, City University of New York, New York 10010, USA.
Matern Child Health J. 2000 Sep;4(3):171-8. doi: 10.1023/a:1009571313297.
Our objectives were to characterize the stability of pregnancy intention and to examine whether stability is associated with the timing of prenatal care initiation, smoking during pregnancy, and breastfeeding.
We use a sample of women from the National Longitudinal Survey of Youth (NLSY) for whom information on pregnancy intention was collected both during pregnancy and after delivery. In bivariate analyses we compare outcomes and characteristics of women whose pregnancy intention changed between the prenatal and postpartum periods. With multivariate methods, we analyze the correlates of switching pregnancy intention as well as the association between switching and maternal behaviors.
Women whose pregnancy intention changes between the two assessments are similar in marital status and socioeconomic background to those who report both during pregnancy and after delivery that the pregnancy is unintended. Disagreement during pregnancy between the parents' pregnancy intentions is the most important predictor of instability in the mother's pregnancy intention. Effects of unintended pregnancy on the timing of initiation of prenatal care, smoking during pregnancy, and breastfeeding based on reports after delivery are smaller than those based on reports during pregnancy, although differences are not statistically significant. Adverse effects of unintended pregnancy are greater when pregnancies reported by the mother to be unintended at either assessment are combined into a single category for unintended pregnancy.
Unstable pregnancy intention may be a marker for adverse maternal behaviors related to infant health.
我们的目的是描述妊娠意愿的稳定性，并研究稳定性是否与产前护理开始时间、孕期吸烟及母乳喂养有关。
我们使用了来自全国青年纵向调查（NLSY）的女性样本，这些女性在孕期和产后均收集了妊娠意愿信息。在双变量分析中，我们比较了产前和产后妊娠意愿发生变化的女性的结局和特征。通过多变量方法，我们分析了妊娠意愿转变的相关因素以及转变与母亲行为之间的关联。
在两次评估之间妊娠意愿发生变化的女性，其婚姻状况和社会经济背景与那些在孕期和产后均报告妊娠为意外妊娠的女性相似。父母妊娠意愿在孕期的不一致是母亲妊娠意愿不稳定的最重要预测因素。基于产后报告，意外妊娠对产前护理开始时间、孕期吸烟及母乳喂养的影响小于基于孕期报告的影响，尽管差异无统计学意义。当将母亲在任何一次评估中报告为意外妊娠的妊娠合并为一个意外妊娠类别时，意外妊娠的不良影响更大。
不稳定的妊娠意愿可能是与婴儿健康相关的不良母亲行为的一个标志。
