Determinants of fetomaternal complication of instrumental vaginal delivery among women who gave childbirth in Southern Ethiopia: a facility-based cross-sectional study

BACKGROUND: In Ethiopia, one in five instrumental deliveries among women giving birth resulted in an unfavourable outcome. This study aimed to assess the determinants of feto-maternal complications of instrumental delivery in selected public hospitals of Gamo and Gofa zones, Southern Ethiopia. METHODS: An institution-based cross-sectional study was conducted among 399 women attending selected public hospitals in the Gamo and Gofa zones. Data were collected using data extraction tools using a systematic random sampling technique. The collected data was entered into Epi-data version 3.1 and then analyzed using SPSS version 25. Logistic regression analysis was conducted to determine an association. RESULTS: One hundred eighty-three (45.9%, n = 183/399) instrumental deliveries were found to be complicated. Primigravida women (AOR: 95% CI: 2.21 (1.35, 3.63), infant birth weight (AOR: 95% CI: 2.56 (1.37, 4.77), post-term pregnancy (AOR: 95% CI: 12.77 (2.92, 55.78), and maternal age (AOR: 95% CI: 7.00 (2.16, 22.64) were associated with fetomaternal complications in instrumental delivery among women who gave birth. CONCLUSIONS AND RECOMMENDATION: A high proportion of women developed fetomaternal complications when compared to local studies. Promotion of antenatal care services, increasing women’s education and empowerment as well as working on capacity building of health care professionals through education and training is cost-effective to reduce the occurrence of fetomaternal complications. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13104-023-06583-w.