A global systematic review and meta-analysis of prevalence of repeat induced abortion and correlated risk factors
WOMEN & HEALTH(2023)
Abstract
As a significant public health problem, repeat-induced abortion is a challenge to women's sexual and reproductive health. Despite many studies in this area, they lack consensus regarding risk factors for repeat-induced abortion. A global systematic review was conducted to analyze prevalence of repeat-induced abortion among women worldwide and determine correlated risk factors. Three electronic databases were systematically searched. Data on prevalence of repeat-induced abortion and related factors were extracted and pooled using a meta-analysis and narrative approach. Sixty-five (which were published between 1972 and 2021) of 3,706 articles were included, consisting of a total of 535,308 participants from 25 countries. The overall pooled prevalence of repeat-induced abortion was 31.3 percent (95 percent CI 25.7 percent, 36.9 percent). Of 57 exposures extracted, 33 factors were significantly correlated with repeat induced abortion, comprising 14 individual demographic factors (i.e. age, education, marriage, etc.), three reproductive history-related factors (i.e. parity, age at sexual debut, and time since sexual debut), five contraception-related factors (i.e. contraceptive use at sexual debut, attitude toward contraceptive use, etc.), four abortion-related factors (i.e. age at the index abortion, previous abortion at the index abortion, etc.), and seven sexual partner-related factors (i.e. multiple sexual partners, sexual partner's age, etc.). The study findings highlight the problem of repeat-induced abortion worldwide and suggest the need for government and civil society in each country to increase efforts to reduce the alarming risk of repeat-induced abortion among women and improve their sexual and reproductive health.
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