Variable | COPD patients | Non-COPD patients | p-value | OR (95% CI) |
Subjects | 176 | 252 | ||
Age yrs | 67.1±10.1 | 57.1±17.6 | <0.001 | |
>70-yrs old | 84 (47.7) | 75 (29.8) | <0.001 | |
APS | 12.6±10.1 | 12.4±7.0 | 0.80 | |
Males | 150 (85.2) | 161 (63.9) | <0.001 | |
Comorbidities | ||||
Smoker | 107 (60.8) | 97 (38.5) | <0.001 | 2.48 (1.67–3.68) |
Chronic heart disease | 75 (42.6) | 59 (23.4) | <0.001 | 2.43 (1.60–3.69) |
Alcoholism | 52 (29.5) | 59 (23.4) | 0.18 | 1.37 (0.88–2.12) |
Diabetes mellitus | 44 (25.0) | 58 (23.0) | 0.72 | 1.11 (0.71–1.75) |
Stroke | 13 (7.4) | 22 (8.7) | 0.74 | 0.83 (0.40–1.70) |
Shock | 88 (50.0) | 124 (49.2) | 0.94 | 1.03 (0.70–1.52) |
Empyema | 4 (2.3) | 21 (8.3) | 0.01 | 0.25 (0.08–0.70) |
Bacteraemia | 28 (15.9) | 42 (16.7) | 0.94 | 0.94 (0.56–1.59) |
Rapid-spread radiography | 65 (36.9) | 134 (53.2) | 0.001 | 0.51 (0.34–0.76) |
Mechanical ventilation | 155 (88.0) | 183 (72.6) | <0.001 | 2.78 (1.62–4.74) |
VAP | 10 (5.6) | 21 (8.3) | 0.39 | 0.66 (0.30–1.44) |
ICU mortality rate | 53 (30.1) | 54 (21.4) | 0.05 | 1.58 (1.01–1.43) |
LOS for survivors | 13.7±12.6 | 16.8±17.9 | 0.04 |
Data are presented as n, mean±sd or n (%), unless otherwise stated. OR: odds ratio; CI: confidence interval; APS: acute physiological score of Acute Physiology And Chronic Health Evaluation II score; VAP: ventilator-associated pneumonia; ICU: intensive care unit; LOS: length of stay. #: excluded patients with immunocompromise.