Table 1 Demographic and Clinical Characteristics of Patients with Direct and Indirect ARDS
From: Prevalence, risk, and outcome of deep vein thrombosis in acute respiratory distress syndrome
Characteristic | Total (N = 225) | Direct ARDS (N = 111) | Indirect ARDS (N = 114) | P value |
|---|---|---|---|---|
Age (years) | 66 ± 17 | 64 ± 15 | 67 ± 18 | 0.192 |
Male, n (%) | 144 (64.0) | 84 (75.7) | 60 (52.6) | <  0.001 |
BMI | 24.1 (21.6, 26.8) | 24.0 (21.0, 26.2) | 24.4 (21.9, 27.0) | 0.274 |
Bedridden time (days) | 8 (4, 15) | 9 (5, 15) | 8 (4, 16) | 0.400 |
APACHE II score | 23 (19, 28) | 22 (17, 27) | 25 (19, 31) | 0.010 |
SOFA score | 8 (5, 10) | 6 (4, 6) | 9 (6, 11) | <  0.001 |
Laboratory data | ||||
 White blood cells (×109/L) | 16.9 (12.0, 21.5) | 14.3 (10.1, 20.3) | 18.2 (14.4, 23.5) | <  0.001 |
 Neutrophils (×109/L) | 14.5 (10.4, 19.7) | 12.8 (9.0, 17.7) | 16.1 (12.6, 20.8) | <  0.001 |
 Platelets (×109/L) | 183.0 (101.0, 253.5) | 190.0 (120.0, 270.0) | 167.0 (73.8, 238.0) | 0.094 |
 C-reactive protein (mg/L) | 120.0 (89.4, 120.0) | 120.0 (85.0, 120.0) | 120.0 (92.2, 120.0) | 0.391 |
 Procalcitonin (ng/mL) | 5.6 (2.0, 16.2) | 4.1 (1.5, 13.5) | 7.3 (3.0, 21.2) | 0.008 |
 Serum creatinine (μmol/L) | 116.7 (66.6, 209.5) | 90.5 (65.0, 193.0) | 136.9 (67.9, 248.8) | 0.019 |
 D-dimer (μg/ml) | 1.9 (0.9, 3.8) | 1.3 (0.6, 2.5) | 2.4 (1.3, 5.3) | <  0.001 |
 PaO2/FiO2 | 158 (103, 199) | 136 (80, 186) | 170 (130, 208) | <  0.001* |
 Mild, n (%) | 54 (24.0) | 22 (19.8) | 32 (28.1) | <  0.001# |
 Moderate, n (%) | 116 (51.6) | 49 (44.1) | 67 (58.8) |  |
 Severe, n (%) | 55 (24.4) | 40 (36.0) | 15 (13.2) |  |
 DVT, n (%) | 90 (40.0%) | 44 (39.6) | 46 (40.4) | 0.913 |
 ICU length of stay (days) | 11 (6, 24) | 13 (7, 25) | 10 (5, 24) | 0.103 |
 Hospital length of stay (days) | 19 (12, 32) | 17 (10, 29) | 22 (13, 34) | 0.055 |
 Mortality, n (%) | 77 (34.2) | 36 (32.4) | 41 (36.0) | 0.577 |