Table 2 Baseline characteristics of AHRF patients
All patients | ARDS present | ARDS absent | p | |
|---|---|---|---|---|
N = 385 | N = 127 | N = 258 | ||
Baseline features | ||||
Age (years)—median (IQR) | 63 (55–73) | 62 (51–71) | 64 (56–73) | 0.10 |
Female—no. (%) | 164 (43%) | 55 (43%) | 109 (42%) | 0.84 |
SOFA*—median (IQR) | 12 (10–14) | 14 (11–17) | 12 (10–15) | 0.002 |
Respiration | 3 (3–3) | 3 (3–4) | 3 (3–4) | 0.04 |
Cardiovascular | 4 (1–4) | 4 (3–4) | 4 (1–4) | 0.03 |
Central nervous system | 4 (3–4) | 4 (3–4) | 4 (3–4) | 0.56 |
Liver | 0 (0–3) | 0 (0–3) | 0 (0–3) | 0.048 |
Coagulation | 0 (0–3) | 0 (0–3) | 0 (0–3) | 0.048 |
Renal | 2 (1–4) | 2 (0.5–4) | 2 (1–4) | 0.38 |
ARDS/AHRF risk factor—no. (%) | ||||
Number of ARDS/AHRF risk factors per patient—median (IQR) | 2 (1–3) | 3 (2–3) | 2 (1–3) | < 0.001 |
Shock (non-cardiogenic) | 227 (59%) | 99 (78%) | 128 (50%) | < 0.001 |
Transfusion | 158 (41%) | 58 (46%) | 100 (39%) | 0.20 |
Sepsis (non-pulmonary) | 151 (39%) | 55 (43%) | 96 (37%) | 0.30 |
Pneumonia | 143 (37%) | 66 (52%) | 77 (30%) | < 0.001 |
Aspiration | 58 (15%) | 28 (22%) | 30 (12%) | 0.01 |
Other† | 182 (47%) | 65 (51%) | 117 (45%) | 0.33 |
None | 43 (11%) | 3 (2%) | 40 (16%) | < 0.001 |
Intensive care unit setting—no. (%) | ||||
Medical | 225 (59%) | 92 (72%) | 133 (52%) | < 0.001 |
Cardiac | 47 (12%) | 4 (3%) | 43 (17%) | < 0.001 |
Surgical | 69 (18%) | 23 (18%) | 46 (18%) | 0.95 |
Trauma/burn | 39 (10%) | 7 (6%) | 32 (12%) | 0.04 |
Neurologic | 5 (1%) | 1 (1%) | 4 (2%) | 0.53 |