Table 3.

Area under the receiver operator curve (AUC) and 95% bootstrap confidence intervals (CI) for the new (RISSC85) and five existing prediction rules

AUC (95% CI)
Pneumonia Severity Index0.51 (0.50 to 0.54)
CRB rule0.53 (0.51 to 0.55)
CURB rule0.53 (0.51 to 0.55)
CRB-65 rule0.53 (0.51 to 0.56)
CURB-65 rule0.53 (0.50 to 0.56)
RISSC850.63 (0.61 to 0.67)
  • CRB = confusion, respiratory rate, blood pressure. CURB = confusion, urea nitrogen, respiratory rate, blood pressure.