A meta-analysis on burden of postpartum depression and its predictors among lactating women in East African countries from 1998 up to 2018.

Objective: Postpartum depression is a common mental illness that affects lactating women. This not only makes daily activities difficult for them, but it also affects child's future lives. There is little evidence of about postpartum depression and its factors in East African countries, which piqued the authors' interest in conducting a study on this matter for future decision- and policy-making. Methods: The protocol for Preferred Reporting Items for Systematic Reviews and Meta-Analyses was followed. To identify published articles, all major databases such as PubMed/MEDLINE, WHOLIS, Cochrane Library, Embase, PsycINFO, ScienceDirect, Web of Science, and reference lists were used. In addition, shelves, author contact, Google and Google Scholar were also used to identify unpublished studies. Joanna Briggs Institute-Meta-Analysis of Statistical Assessment and Review Instrument was used for critical appraisal of studies. STATA software version 14 was used for the analysis. The random-effect model was used to estimate postpartum depression with 95% confidence interval, while subgroup analysis and meta-regression were used to identify potential sources of heterogeneity and associated factors, respectively. Furthermore, Egger's test and trim-and-fill analysis were used to check for publication bias. Results: Postpartum depression was found in 24% of lactating women in East African countries (95% confidence interval: 17.79-30.20). Postpartum depression was associated with being married (odds ratio = 2; 95% confidence interval: 1.05-3.81), domestic violence (odds ratio = 6.34; 95% confidence interval: 4:11-9.78), a lack of support (odds ratio = 6.59; 95% confidence interval: 1.98-21.89), and a lack of empowerment (odds ratio = 2.79; 95% confidence interval: 1.12-6.92). Conclusion: In East Africa, the prevalence of postpartum depression among lactating women is high and rising, as per global postpartum depression estimates. Therefore, the primary focus should be on women's domestic violence prevention mechanisms. Existing national policies and development agendas must prioritize strategies for women's support and empowerment. Future research into the relationship between marriage and postpartum depression is required.