Differences between mistimed and unwanted pregnancies among women who have live births
Differences between mistimed and unwanted pregnancies among women who have live births
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DOI：
10.1111/j.1931-2393.2004.tb00022.x
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发表时间：
2004-09-01
影响因子：
5.8
通讯作者：
Herold, JM
中科院分区：
文献类型：
--
作者：
D'Angelo, DV;Gilbert, BC;Herold, JM
语境。导致活产的不合时宜怀孕和意外怀孕通常被一起视为意外怀孕，但它们可能有不同的先兆和结果。 方法：使用参与 1998 年怀孕风险评估监测系统的 15 个州的数据，通过选定的变量来计算意外怀孕、不合时宜和意外怀孕的发生率。通过未经调整的相对风险来评估意外行为与女性在怀孕前、怀孕期间和怀孕后的行为和经历之间的关联。结果。预期怀孕、不合时宜和意外怀孕的分布在几乎每个检查的变量上都不同；危险行为和不良经历在不按计划怀孕的妇女中更为常见，并且在意外怀孕的妇女中最为常见。对于 35 岁或以上的女性，意外怀孕而非不合时宜怀孕的可能性较高（相对风险为 2.3），而对于 25 岁以下的女性则较低（相对风险为 0.8），而对于不合时宜而非预期怀孕的可能性则相反（相对风险为 0.5 与 1.7-2.7）。多孔女性意外怀孕的风险增加（2.1-4.0），但不合时宜怀孕的风险降低（0.9）。在妊娠晚期吸烟、延迟接受产前护理或未接受产前护理、不进行母乳喂养、在怀孕期间受到身体虐待的女性表示，她们的伴侣不想怀孕或婴儿出生体重过轻，意外怀孕的风险增加；增加的幅度取决于怀孕是否是意外怀孕或不合时宜。结论：澄清不合时宜怀孕和意外怀孕之间的风险差异可能有助于指导有关为妇女和婴儿提供服务的决策。
CONTEXT. Mistimed and unwanted pregnancies that result in live births are commonly considered together as unintended pregnancies, but they may have different precursors and outcomes.METHODS: Data from 15 states participating in the 1998 Pregnancy Risk Assessment Monitoring System were used to calculate the prevalence of intended, mistimed and unwanted conceptions, by selected variables. Associations between unintendedness and women's behaviors and experiences before, during and after the pregnancy were assessed through unadjusted relative risks.RESULTS. The distribution of intended, mistimed and unwanted pregnancies differed on nearly every variable examined; risky behaviors and adverse experiences were more common among women with mistimed than intended pregnancies and were most common among those whose pregnancies were unwanted. The likelihood of having an unwanted rather than mistimed pregnancy was elevated for women 35 or older (relative risk, 2.3) and was reduced for those younger than 25 (0.8), the pattern was reversed for the likelihood of mistimed rather than intended pregnancy (0.5 vs. 1.7-2.7). Porous women had an increased risk of an unwanted pregnancy (2.1-4.0) but a decreased risk of a mistimed one(0.9). Women who smoked in the third trimester, received delayed or no prenatal care, did not breast-feed, were physically abused during pregnancy, said their partner had not wanted a pregnancy or had a low-birth-weight infant had an increased risk of unintended pregnancy; the size of the increase depended on whether the pregnancy was unwanted or mistimed.CONCLUSION: Clarifying the difference in risk between mistimed and unwanted pregnancies may help guide decisions regarding services to women and infants.