While there is a large literature on the prevalence of unmet need for family planning, there is no matching quantitative evidence on the prevalence of unwanted family planning; all contraceptive use is assumed to represent a “met need.” This lack of evidence raises concerns that some observed contraceptive use may be undesired and coercive. We provide estimates of unwanted family planning using Demographic and Health Survey data collected from 1,546,987 women in 56 low- and middle-income countries between 2011 and 2019. We estimate the prevalence of unwanted family planning, defined as the proportion of women who report wanting a child in the next nine months but who are using contraception. We find that 12.2 percent of women have an unmet need for family planning, while 2.1 percent have unwanted family planning, with estimated prevalence rates ranging from 0.4 percent in Gambia to 7.1 percent in Jordan. About half of unwanted family planning use can be attributed to condoms, withdrawal, and abstinence. Estimating the prevalence of unwanted family planning is difficult given current data collection efforts, which are not designed for this purpose. We recommend that future surveys probe the reasons for the use of family planning.

中文翻译：

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意外的计划生育：56 个国家的流行率估计

虽然有大量关于未满足计划生育需求普遍性的文献，但没有关于不想要的计划生育普遍性的匹配定量证据；所有避孕药具的使用都被假定为代表“满足需求”。这种证据的缺乏引起了人们的担忧，即一些观察到的避孕药具使用可能是不受欢迎的和强迫的。我们使用 2011 年至 2019 年间从 56 个低收入和中等收入国家的 1,546,987 名妇女收集的人口和健康调查数据提供了意外计划生育的估计数。我们估计了意外计划生育的流行率，定义为报告想要生育的女性比例未来九个月的孩子，但正在使用避孕措施。我们发现 12.2% 的女性有未满足的计划生育需求，而 2.1% 的女性有不想要的计划生育，估计患病率从冈比亚的 0.4% 到约旦的 7.1%。大约一半的意外计划生育使用可归因于避孕套、退缩和禁欲。鉴于目前的数据收集工作并非为此目的而设计，因此很难估计意外计划生育的流行率。我们建议未来的调查探究使用计划生育的原因。