Retrospective analysis of patients from three tertiary care hospitals
| Group 1n = 896 | Group 2n = 65 | Group 3n = 32 | |
| Age yrs | 64±16 | 67±12 | 65±17 |
| PSI scores | 82±42 | 127±29 | 122±26 |
| TCS days | 3.9±2.6 | 4.2±2.6 | 4.7±2.7 |
| LOS days | 7.4±7.8 | 7.7±8.6 | 9.0±8.1 |
| Mortality | 44 (4.9)# | 10 (15)# | 3 (9.4) |
Data are presented as mean±sd or n (%). PSI: Pneumonia Severity Index; TCS: time to reach clinical stability; LOS: length of stay in hospital. #: p = 0.002