The evaluation of CRIB II scoring system in predicting mortality in preterm newborns

The survival rate of premature newborns depends on gestational age, birth weight and condition when they are hospitalized. Different scoring systems to predict mortality in newborns has been designed. The purpose of this study was to evaluate value of CRIB II scoring system in predicting mortality rate of infants with birth weights less than 1500 grams. In this 8 month cross - sectional study (September 2010 to April 2010) which was conducted in the NICU of Imam Reza hospital in Kermanshah, preterm newborns with birth weight less than 1500 gr and gestational age less than 32 weeks who were admitted within 12 hours after birth in the NICU, were evaluated based on CRIB II scoring system. 50 neonates out of 1360 (36.8%) survived and 86 neonates(63.2%) died. Average CRIB II score in newborn survived was 5.8±2.9 and in infants died was 9.8±2.9 (p <0.0001). Based on the AUC, the CRIB II score could predict about 0.85 (CI: 0.77-0.92) of mortality. Also based on the ROC curve cut-off point for scoring CRIB II, was 6.5. Our study showed that CRIB II has a high value(about %85) in predicting mortality in newborns with birth weights less than 1500 grams.