Ibis Reproductive Health, Cambridge, Massachusetts, and Oakland, California; and the Bixby Center for Global Reproductive Health, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, California.
Obstet Gynecol. 2013 Feb;121(2 Pt 1):241-246. doi: 10.1097/AOG.0b013e31827c616e.
To estimate unintended pregnancy rates among a representative sample of 7,225 active-duty women in the U.S. military in 2008 and to compare these rates with 2005 and with the U.S. population.
Cross-sectional data came from the 2008 Department of Defense Survey of Health Related Behaviors among Active Duty Military Personnel (Health Related Behaviors Survey). For all women and by key subgroups, unintended pregnancy rates per 1,000 women were calculated and compared with rates reported in the 2005 Health Related Behaviors Survey. Univariable and multivariable logistic regression to test for associations between unintended pregnancy and key subgroups was also performed. Finally, an age-standardized unintended pregnancy rate was calculated to adjust for differences in age composition between the military and U.S. populations for better comparison with the general U.S. rate.
Eleven percent of women reported an unintended pregnancy in the prior 12 months. The 2008 self-reported unintended pregnancy rate was 105 per 1,000 women, an increase from 2005 (97/1,000 women). Younger, less educated, nonwhite, and married or cohabitating women had significantly higher rates of unintended pregnancy compared with their counterparts. Rates did not differ between women deployed in the prior 12 months and nondeployed women. The age-standardized rate was 78 per 1,000 women (95% confidence interval 77-79), which is 50% higher than the general U.S. population (52/1,000 women).
Unintended pregnancy rates in the military are high and have increased in most key subgroups since the 2005 survey. Efforts are needed to help servicewomen prevent unintended pregnancy, including during deployment.
II.
评估 2008 年美国现役女性 7225 名代表性样本的意外怀孕率，并将这些数据与 2005 年的数据以及美国总人口进行比较。
横断面数据来自 2008 年国防部现役军人健康相关行为调查（健康相关行为调查）。针对所有女性和关键亚组，计算了每 1000 名女性的意外怀孕率，并与 2005 年健康相关行为调查报告的比率进行比较。还进行了单变量和多变量逻辑回归分析，以测试意外怀孕与关键亚组之间的关系。最后，计算了标准化后的意外怀孕率，以调整军事人员和美国人口在年龄构成上的差异，以便更好地与美国总体比率进行比较。
11%的女性报告在过去 12 个月内意外怀孕。2008 年自我报告的意外怀孕率为每 1000 名妇女 105 例，高于 2005 年的 97 例（每 1000 名妇女）。年龄较小、受教育程度较低、非白人和已婚或同居的女性意外怀孕率明显高于同龄人。过去 12 个月内部署的女性和未部署的女性之间的怀孕率没有差异。标准化后的比率为每 1000 名妇女 78 例（95%置信区间 77-79），比美国一般人口（每 1000 名妇女 52 例）高 50%。
自 2005 年调查以来，军人中的意外怀孕率很高，且在大多数关键亚组中都有所上升。需要努力帮助女兵预防意外怀孕，包括在部署期间。
II 级。
