Clinical parameters for community-acquired pneumonia patients stratified by whether a urine antigen test was obtained.
| Variable | Urinary antigen test | p-value | |
| Obtained (n=931) | Not obtained (n=1365) | ||
| Age years | 63 (50–76) | 68 (51–81) | <0.001 |
| Male | 458 (49.1) | 622 (45.5) | 0.10 |
| Intensive care unit | 486 (52.2) | 430 (31.5) | <0.001 |
| PaO2/FiO2 | 260.5 (202.4–319.1) | 269.5 (226.2–319.1) | <0.001 |
| Pleural effusion | 134 (14.4) | 229 (16.8) | 0.14 |
| eCURB | 0.03 (0.014–0.08) | 0.028 (0.014–0.072) | 0.13 |
| sCAP minor | 2 (1–3) | 2 (1–2) | 0.001 |
| CURB-65 score | 0.28 | ||
| 0 | 260 (27.9) | 352 (25.7) | |
| 1 | 273 (29.3) | 428 (31.3) | 0.32 |
| 2 | 285 (30.6) | 426 (31.2) | 0.8 |
| 3 | 97 (10.4) | 143 (10.5) | 1 |
| 4 | 16 (1.7) | 12 (0.9) | 0.11 |
| 5 | 0 | 4 (0.3) | 0.15 |
Data are presented as n (%) or median (interquartile range), unless otherwise stated. sCAP minor is the number of minor criteria for severe community-acquired pneumonia from the Infectious Diseases Society of America/American Thoracic Society 2007 community-acquired pneumonia guidelines 2007 and eCURB is the validated electronic version of CURB-65 (confusion, blood urea, respiratory rate, blood pressure, age 65 years) with weighted, continuous variables yielding a point estimate for 30-day mortality [13, 14]. PaO2: arterial oxygen tension; FiO2: fraction of inspired oxygen.