Pediatric BIG Score — Blunt Injury with Geriatric (and Pediatric) Indicators

The Pediatric BIG Score combines base deficit (B), INR (I), and GCS (G) to predict mortality in pediatric trauma patients. The BIG score = base deficit + (2.5 × INR) + (15 − GCS). Higher BIG score predicts higher in-hospital mortality. The score was derived from a pediatric trauma database (Borgman et al.) and has been validated in multiple pediatric trauma populations as a simple, rapidly calculable mortality predictor requiring only 3 laboratory/clinical variables available at initial trauma assessment.