Bolstridge J, O'Neil ER, Aden JK, et al. - The mortality prediction of the pediatric trauma BIG score, which is comprised of admission base deficit (B), International Normalized Ratio (I), and GCS (G), was compared with that of other well-established pediatric trauma severity of illness scores: the pediatric logistic organ dysfunction (PELOD); the pediatric index of mortality 2 (PIM2); and the pediatric risk of mortality (PRISM III). In this retrospective cohort study, they included a total of 29,204 patients using a multi-institutional database. For BIG, PELOD, PIM2, and PRISM III scores, AUC were 0.97 (0.97–0.98), 0.98 (0.98–0.98), 0.98 (0.97–0.98), and 0.99 (0.98–0.99), respectively. Observations suggest that the performance of the BIG score using the imputation of missing variables was similar to the PELOD, PIM2, and PRISM III in this massive cohort of pediatric trauma patients. This further validates the score as a predictor of mortality. .