Correlation between baseline CRP level and time to recovery (in hours).

Several studies in the past have used cutoffs in the range of CRP concentrations of 40 mg/L to differentiate between bacterial and non-bacterial or viral infections. [11,12]. We therefore also performed an additional analysis where we dichotomized serum CRP concentration with a cut-off of 40 mg/L. In this analysis we found that predictors for time to recovery from PSBI remained the same and infants with CRP ≥ 40 mg/L were found to have on an average 33% longer time to recovery than those with values below that.