Assistant Professor of Neonatology, Department of Pediatrics, Tabriz University of Medical Sciences, Tabriz, Iran.
PhD Candidate of Nursing, Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Epidemiologist, Faculty of Nutrition and Public Health, Tabriz University of medical Sciences, Tabriz, Iran.
Background: One of the most common methods of identifying mortality risk is the Clinical Risk Index for Babies scoring system (CRIB- II). The aim of this study was assessing the value of CRIB- II in predicting mortality risk in preterm and low birth weight infants in East Azerbaijan- Iran.
Materials and Methods: This prospective cohort study was carried out in 2013-2014 during 6 months in NICUs of Alzahra, Taleqani and Children hospitals of Tabriz-Iran. All infants ≤ 32 weeks’ gestational age or ≤ 1500gr birth weight were included in the study using consecutive method. After calculating CRIB- II score, the infants were followed up at 3 months of age and their outcome was determined. The data was analyzed using SPSS-13, t- test, receiver operating characteristics (ROC) and area under curve (AUC) and relative risk (RR).
Results: Of total 215 infants, 64 infants (29.7%) died in the hospital and one infant (0.4%) died after discharging from the hospital. 150 (68.8%) infants, were alive at 3 months age follow up. The mean of CRIB- II score in the group of dead infants was higher and statistically significant compared to the group of alive infants (P<0.05). The prediction power of CRIB- II was determined at 8.5 cut off point regarding the outcome of infants. Based on AUC, the CRIB- II score predicted 83% of mortality rate in infants (confidence interval =76-90).
Conclusion: Findings indicated the notable power of CRIB- II in predicting infants’ mortality, so it can be used as a simple and reliable tool to prioritize the interventions in Newborn Intensive Care Units (NICUs).