PSI class ⩾IV | CURB-65 ⩾3 | No (%) patients | No (%) deaths | |
IDSA/ATS ⩾3 | ||||
+ | − | NA | 32 (2.6) | 4 (12.5) |
− | + | NA | 324 (26.1) | 31 (9.6) |
+ | NA | − | 99 (8.0) | 43 (43.4) |
− | NA | + | 58 (4.7) | 6 (10.3) |
IDSA/ATS ⩾2 | ||||
+ | − | NA | 118 (9.5) | 6 (5.1) |
− | + | NA | 169 (13.6) | 7 (4.1) |
+ | NA | − | 282 (22.7) | 63 (22.3) |
− | NA | + | 0 (0) | 0 (NA) |
ATS, American Thoracic Society; CURB, confusion, urea nitrogen, respiratory rate, blood pressure; IDSA, Infectious Diseases Society of America; PSI, Pneumonia Severity Index; NA, not applicable.