Table 1—

Distribution of CRB-65 (confusion, respiratory rate ≥30 breaths·min−1, low blood pressure (systolic value <90 mmHg or diastolic value ≤60 mmHg) and age ≥65 yrs) risk classes and associated 28-day mortality

CRB-65 risk classTotalHospitalised patientsPatients with known outcome28-day mortality
0557262 (47.0)5382 (0.4)
1608445 (73.2)58722 (3.7)
2275258 (93.8)22927 (11.8)
35857 (98.3)448 (18.2)
41010 (100.0)64 (66.7)
Total15081032 (68.4)140463 (4.5)
  • Data are presented as n or n (%).