Determinants of retroplacental hematoma at the Maradi mother and child health center, Niger: a case‒control study.

Introduction: Retroplacental hematoma is a paroxysmal accident that threatens maternal and fetal prognosis. It is a major emergency in obstetric pathology. The objective of this study was to identify the factors associated with retroplacental hematomas at the Maradi Mother and Child Health Center in 2022.

Methods: This was a case‒control cross-sectional analytical study that used patient records for the year 2022 from September 20 to October 20, 2023. The presence of a retropl placental hematoma was the outcome variable and was measured by a case (yes) or control (no) response. The exposure variables included sociodemographic characteristics, obstetric characteristics, care, progression of patients and neonatal characteristics. Pearson's chi-square tests at the 5% significance level were used to analyze differences between categorical variables. All variables that had a bilateral p value < 0.05 in the bivariate analysis were introduced into the binary logistic regression model to identify factors associated with retroplacental hematoma.

Results: A total of 246 cases of retroplacental hematoma were recorded out of 4731 deliveries recorded during the study period, for an estimated frequency of 5.20%. The mean age of the patients was 29.41 ± 6.94 years. Factors associated with retroplacental hematoma included multiple parity [adjusted odds ratio (ORA): 0.38, 95% confidence interval (CI) (0.24-0.61)], fewer than 4 antenatal visits [AOR: 10.70, 95% CI (1.14-99.74)], blood transfusion [AOR: 2.01, 95% CI (1.11-3.60)], a newborn birth weight less than 2500 g [AOR: 1.92, 95% CI (1.53-2.42)] and fetal mortality in utero [AOR: 13.20, 95% CI (1.86-93.70)].

Conclusion: This study identified the factors associated with retroplacental hematoma. Prevention requires regular, high-quality prenatal care. Early diagnosis and cesarean section improve maternal-fetal prognosis.

Clinical trial number: Not applicable.