Department of Reproductive Health, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud,
Arch Iran Med. 2013 Oct;16(10):594-8.
About 44 million induced abortions take place worldwide annually, of which 50% are unsafe. The results of studies investigated the induced abortion rate in Iran are inconsistent. The aim of this meta-analysis was to estimate the incidence rate of induced abortion in Iran.
National and international electronic databases, as well as conference databases until July 2012 were searched. Reference lists of articles were screened and the studies' authors were contacted for additional unpublished studies. Cross-sectional studies addressing induced abortion in Iran were included in this meta-analysis. The primary outcome of interest was the induced abortion rate (the number of abortions per 1000 women aged 15-44 years in a year) or the ratio (the number of abortions per 100 live births in a year). The secondary outcome of interest was the prevalence of unintended pregnancies (the number of mistimed, unplanned, or unwanted pregnancies per total pregnancies). Data were analyzed using random effect models.
Of 603 retrieved studies, using search strategy, 10 studies involving 102,394 participants were eventually included in the meta-analysis. The induced abortion rate and ratio were estimated as 8.9 per 1000 women aged 15-44 years (95% CI: 5.46, 12.33) and 5.34 per 100 live births (95% CI: 3.61, 7.07), respectively. The prevalence of unintended pregnancy was estimated as 27.94 per 100 pregnant women (95% CI: 23.46, 32.42).
The results of this meta-analysis helped a better understanding of the incidence of induced abortion in Iran compared to the other developing countries in Asia. However, additional sources of data on abortion other than medical records and survey studies are needed to estimate the true rate of unsafe abortion in Iran.
全球每年约有 4400 万例人工流产，其中 50%是不安全的。伊朗人工流产率的研究结果并不一致。本荟萃分析的目的是估算伊朗人工流产的发生率。
检索了 2012 年 7 月之前国内外电子数据库、会议数据库，并对文章的参考文献进行筛选，还联系了研究人员以获取其他未发表的研究。本荟萃分析纳入了探讨伊朗人工流产的横断面研究。主要结局指标为流产率（每年每 1000 名 15-44 岁育龄妇女的流产例数）或比值（每年每 100 例活产的流产例数）。次要结局指标为意外妊娠率（每年每 100 例妊娠的非意愿妊娠例数）。采用随机效应模型分析数据。
从 603 篇检索文献中，通过检索策略，最终有 10 项研究共纳入 102394 名参与者进行荟萃分析。估计的流产率和比值分别为 8.9/1000 名 15-44 岁育龄妇女（95%CI：5.46，12.33）和 5.34/100 例活产（95%CI：3.61，7.07）。意外妊娠率估计为 27.94/100 名孕妇（95%CI：23.46，32.42）。
本荟萃分析结果有助于更好地了解与亚洲其他发展中国家相比伊朗人工流产的发生率。然而，需要更多关于流产的其他数据来源（除医疗记录和调查研究之外）来估计伊朗不安全流产的真实发生率。
