Li G, et al. - The performance of red blood cell distribution width (RDW), C-reactive protein (CRP) or the combination of both to predict clinical outcomes in pediatric non-cardiovascular critical illness was investigated via analyzing 404 pediatric non-cardiovascular critically ill patients admitted to pediatric intensive care unit (PICU). Outcomes support the value of RDW and CRP as independent predictors of PICU mortality in these critically ill patients. Addition of RDW or CRP or both to pediatric critical illness score (PCIS) led to significant improvement in the ability to predict PICU mortality.