Table 4—

Distribution of CURB-65 (Confusion, Urea, Respiratory rate, Blood pressure, and age ≥65 yrs) scores according to the pneumonia severity index (PSI) and subgroup 30-day mortality

CURB-65 scorePSI risk classTotalp-value
I–IIIIV–V
Patients nDied %Patients nDied %Patients nDied %
0–19290.2772.610060.4<0.01
21942.628011.14747.6<0.001
>2224.627428.529626.70.01
Total11450.763117.617766.7<0.001
  • Total patients includes both inpatients and outpatients.