A multicenter study of incidence, risk factors and outcomes of babies with birth asphyxia in Nepal.

Background: Perinatal events which result in compromised oxygen delivery to the fetus can lead to Birth Asphyxia (BA). While the incidence, risk factors and outcomes of BA have been characterized, less is known in low resource settings.

Aim: To determine the incidence of Birth Asphyxia (BA) in Nepal and to evaluate associated risk factors and outcomes of this condition.

Methods: A nested observational study was conducted in 12 hospitals of Nepal for a period of 14 months. Babies diagnosed as BA at ≥37 weeks of gestation were identified and demographics were reviewed. Data were analyzed using binary logistic regression followed by multiple logistic regression analysis.

Results: The incidence of BA in this study was 6 per 1000 term livebirths and was higher among women 35 years and above. Predictors for BA were instrumented vaginal delivery (aOR:4.4, 95% CI, 3.1-6.1), fetal distress in labour (aOR:1.9, 95% CI, 1.0-3.6), malposition (aOR:1.8, 95% CI, 1.0-3.0), birth weight less than 2500 g (aOR:2.0, 95% CI, 1.3-2.9), gestational age ≥ 42 weeks (aOR:2.0, 95% CI, 1.3-3.3) and male gender (aOR:1.6, 95% CI, 1.2-2.0). The risk of pre-discharge mortality was 43 times higher in babies with BA (aOR:42.6, 95% CI, 32.2-56.3).

Conclusion: The incidence of Birth asphyxia in Nepal higher than in more resourced setting. A range of obstetric and neonatal risk factors are associated with BA with an associated high risk of pre-discharge mortality. Interventions to improve management and decrease rates of BA could have marked impact on outcomes in low resource settings.