Magnitude of postpartum hemorrhage and its associated factors in Ethiopia: a systematic review and meta-analysis

Postpartum hemorrhage or postpartum bleeding (PPH) is often defined as loss of 500 ml of blood after vaginal delivery or 1000 ml after cesarean delivery within 24 h. Postpartum hemorrhage is a leading direct cause of maternal morbidity and mortality in Ethiopia. Therefore, the main objective of this systematic review and meta-analysis was to estimate the pooled magnitude of postpartum hemorrhage and the pooled effect size of the associated factors in Ethiopia.Primary studies were searched from PubMed/MEDLINE online, Science Direct, Hinari, Cochrane Library, CINAHL, African Journals Online, Google and Google Scholars databases. The searching of the primary studies included for this systematic review and meta-analysis was limited by papers published from 2010 to October 10/2021. The data extraction format was prepared in Microsoft Excel and extracted data was exported to Stata Version 16.0 statistical software for analysis. A random effect meta-analysis model was used. Statistical heterogeneity was evaluated by the IA total of 21 studies were included in this meta-analysis. The pooled magnitude of postpartum hemorrhage in Ethiopia was 8.24% [(95% CI 7.07, 9.40]. Older age [OR = 5.038 (95% CI 2.774, 9.151)], prolonged labor [OR = 4.054 (95% CI 1.484, 11.074)], absence of anti-natal care visits (ANC) [OR = 13.84 (95% CI 5.57, 34.346)], grand-multiparty [OR = 6.584 (95% CI 1.902, 22.795)], and history of postpartum hemorrhage [OR = 4.355 (95% CI 2.347, 8.079)] were factors associated with the occurrence of postpartum hemorrhage.The pooled magnitude of postpartum hemorrhage among post-natal mothers in Ethiopia was moderately high. The finding of this study will strongly help different stakeholder working in maternal and child health to focus on the main contributors' factors to reduce post-partum hemorrhage among postnatal mothers. Health professionals attending labor and delivery should give more attention to advanced aged mothers, grand-multipara mothers and mothers who had a history of post-partum hemorrhage due to higher risk for postpartum hemorrhage. Encouraging to continue ANC visit and prevent prolonged labor should also be recommended to decrease postpartum hemorrhage.Even though other complications occur during pregnancy, post-partum hemorrhage (PPH) is the most serious complication and most critically important cause during pregnancy and child birth. It can cause severe anemia, acute respiratory distress syndrome (ARDS), acute renal failure (ARF), coma, and cardiac arrest. Uterine atony, retained tissue, genital tract tear, coagulation problem, and uterine rupture are most common causes of post-partum hemorrhage. In developing countries, PPH is one of the leading causes of maternal mortality, accounting for 25–43% of maternal death. It is also a leading cause of maternal morbidity and mortality in Ethiopia. This systematic review and meta-analysis were performed following the preferred reporting items for systematic reviews and Meta-Analyses (PRISMA). Primary studies were searched from different databases and random effect meta-analysis model was used. This systematic review and meta-analysis included 21 primary studies with a total of 93,898 study participants. The pooled magnitude of postpartum hemorrhage in Ethiopia was 8.24%. Advanced maternal age, prolonged labor, absence of antenatal care (ANC) visits, grand multi-parity, previous history of postpartum hemorrhage were significantly associated with postpartum hemorrhage. The finding of this systematic review and meta-analysis will strongly help different stakeholders working in maternal and child health to focus on the main contributor factors to reduce PPH If postpartum hemorrhage is reduced, it is the fact that maternal death will be decreased.