In general, key predictors of mortality identified in the literature were markedly different in the highest vs lowest model-predicted risk deciles; these predictors included summed comorbidity score,39 age,38 failure to thrive, heart rate, and certain laboratory data (eg, C-reactive protein level, white blood cell count, and alkaline phosphatase level).29 Of importance, no single variable explained more than 2% of model predictions in linear fashion. Here, CRP is linked to Failure to thrive.