Table 1.
Baseline characteristics of the study population according to site of care
| Site of care of patients with CAP |
p Value three study groups | p Value ICU vs non-ICU groups | ||||
|---|---|---|---|---|---|---|
| Variables | Ambulatory | Hospital ward | ICU | Non-ICU | ||
| Total patients | 54 | 173 | 191 | 227 | ||
| Male patients | 42 (77.8) | 112 (64.7) | 136 (71.2) | 154 (67.8) | 0.146 | 0.457 |
| Age, years, mean (SD) | 51.1 (18.8) | 71.1 (15.6) | 60.1 (17.4) | 66.3 (18.5) | <0.001 | <0.001 |
| Alcohol consumption | 7 (14) | 8 (4.8) | 30 (15.7) | 15 (6.9) | 0.003 | 0.004 |
| Smoking habit | 14 (28) | 27 (16.1) | 67 (35.1) | 41 (18.8) | <0.001 | <0.001 |
| Chronic respiratory disease | 12 (24) | 100 (59.2) | 73 (38.2) | 112 (51.1) | <0.001 | 0.009 |
| Chronic heart disease | 6 (12) | 76 (45) | 42 (22) | 82 (37.4) | <0.001 | 0.001 |
| Diabetes mellitus | 2 (4) | 41 (24.3) | 44 (23) | 43 (19.6) | 0.006 | 0.401 |
| Chronic neurological disorders | 5 (10) | 29 (17.2) | 19 (9.9) | 34 (15.5) | 0.101 | 0.093 |
| Chronic renal failure | 1 (2) | 8 (4.7) | 7 (3.7) | 9 (4.1) | 0.663 | 0.817 |
| Past solid neoplasm | 1 (2) | 10 (5.9) | 4 (2.1) | 11 (5.0) | 0.125 | 0.115 |
| Oral corticosteroids | 5 (10) | 30 (17.8) | 8 (4.2) | 35 (16.0) | <0.001 | <0.001 |
| Previous symptoms, days, mean (SD) | 7.6 (5.6) | 4.5 (5.3) | 3.5 (2.9) | 5 (5.5) | <0.001 | 0.069 |
| Shock | 0 | 0 | 88 (46.1) | 0 | <0.001 | <0.001 |
| Death | 0 | 5 (2.9) | 43 (22.5) | 5 (2.2) | <0.001 | <0.001 |
Data as frequencies and percentages in parentheses unless otherwise stated.
CAP, community-acquired pneumonia; ICU, intensive care unit.