[Association between induced abortion and depression: A systematic review and meta-analysis]

This article is a systematic review (SR) and meta-analysis (MA) whose objective was to identify the association between induced abortion and the development of depression, based on the Cochrane guidelines for SRs. A systematic search was carried out in the WoS, PubMed and Scopus databases. Retrospective and prospective cohort studies, carried out until November 2020, that evaluated a population of women in childbearing age (12 to 46 years) with at least 1 induced and/or provoked abortion, including pharma-cological and surgical abortion. Only studies with healthy women at the beginning of the research were included, i.e., with absence of psychiatric pathology prior to induced abor-tion. The quality of the included studies was measured with the Newcastle-Ottawa Scale (NOS), and for the MA random-effects models were specified using the DerSimonian & Laird method, grouping them into follow-up after abortion before and after one year. The results of the SR were measured with relative risk (RR), hazard ratio (HR), odds ratio (OR), and the chi-square test, which assessed the intensity of the statistical relationship between population and exposure. Systematic review demonstrated an OR of 1.38 (95% CI 1.14-1.68) of depression after induced abortion. Meta-analysis demonstrated a statis-tically significant association between depression and induced abortion when the as-sessment after one year was performed OR: 1.37 (95% CI 1.09-1.71). The risks, harms and mental health consequences of induced abortion, such as depression, should be in-vestigated and warned.