Table 1 Characteristics of the enrolled patients according to RDW.
All subjects | RDW (%) | P-value | |||
|---|---|---|---|---|---|
< 14.1 | ≥ 14.1 < 15.7 | ≥ 15.7 | |||
N = 947 | N = 1049 | N = 1003 | |||
Age (years) | 64.88 ± 16.57 | 62.12 ± 18.34 | 66.28 ± 15.90 | 66.02 ± 15.14 | < 0.001 |
Female | 1348 (44.95%) | 412 (43.51%) | 456 (43.47%) | 480 (47.86%) | 0.076 |
Ethnicity | |||||
Caucasian | 2072 (69.09%) | 649 (68.53%) | 747 (71.21%) | 676 (67.40%) | 0.005 |
Black | 208 (6.94%) | 61 (6.44%) | 52 (4.96%) | 95 (9.47%) | |
Asian | 71 (2.37%) | 20 (2.11%) | 25 (2.38%) | 26 (2.59%) | |
Others | 648 (21.61%) | 217 (22.91%) | 225 (21.45%) | 206 (20.54%) | |
Admission type | |||||
Emergency | 2728 (90.96%) | 881 (93.03%) | 937 (89.32%) | 910 (90.73%) | 0.016 |
Urgent | 179 (5.97%) | 44 (4.65%) | 80 (7.63%) | 55 (5.48%) | |
Elective | 92 (3.07%) | 22 (2.32%) | 32 (3.05%) | 38 (3.79%) | |
Comorbidity | |||||
Pulmonary circulatory disease | 255 (8.50%) | 65 (6.86%) | 88 (8.39%) | 102 (10.17%) | 0.032 |
Chronic pulmonary disease | 810 (27.01%) | 223 (23.55%) | 325 (30.98%) | 262 (26.12%) | < 0.001 |
Renal failure | 356 (11.87%) | 48 (5.07%) | 121 (11.53%) | 187 (18.64%) | < 0.001 |
Liver disease | 305 (10.17%) | 34 (3.59%) | 79 (7.53%) | 192 (19.14%) | < 0.001 |
Metastatic cancer | 191 (6.37%) | 44 (4.65%) | 58 (5.53%) | 89 (8.87%) | < 0.001 |
Congestive heart failure | 1064 (35.48%) | 266 (28.09%) | 396 (37.75%) | 402 (40.08%) | < 0.001 |
SID30 | 11.31 ± 8.32 | 8.8 ± 7.6 | 10.9 ± 8.1 | 14.1 ± 8.4 | < 0.001 |
Mechanical ventilation | |||||
Yes | 2649 (88.33%) | 856 (90.39%) | 940 (89.61%) | 853 (85.04%) | < 0.001 |
No | 350 (11.67%) | 91 (9.61%) | 109 (10.39%) | 150 (14.96%) | |
Severity scale | |||||
APS III | 54.54 ± 23.35 | 48.94 ± 21.70 | 52.72 ± 22.33 | 61.74 ± 24.10 | < 0.001 |
OASIS | 38.60 ± 8.08 | 37.77 ± 7.69 | 38.61 ± 7.90 | 39.36 ± 8.56 | < 0.001 |
qSOFA | 1.89 ± 0.68 | 1.85 ± 0.69 | 1.92 ± 0.67 | 1.89 ± 0.69 | 0.113 |
SIRS | 3.14 ± 0.89 | 3.16 ± 0.91 | 3.14 ± 0.87 | 3.12 ± 0.88 | 0.501 |
Type of respiratory failure | |||||
Hypoxic respiratory failure | 2373 (79.13%) | 762 (80.46%) | 806 (76.84%) | 805 (80.26%) | 0.077 |
Hypercarbic respiratory failure | 626 (20.87%) | 185 (19.54%) | 243 (23.16%) | 198 (19.74%) | 0.062 |
Time in ICU (days) | 10.36 ± 10.01 | 10.43 ± 10.61 | 10.42 ± 10.04 | 10.24 ± 9.38 | 0.892 |
Time in hospital (days) | 17.10 ± 16.37 | 16.19 ± 15.23 | 17.21 ± 15.63 | 17.86 ± 18.05 | 0.076 |
1-year mortality | 1443 (48.12%) | 331 (34.95%) | 454 (43.28%) | 658 (65.60%) | < 0.001 |
3-year mortality | 1654 (55.15%) | 398 (42.03%) | 530 (50.52%) | 726 (72.38%) | < 0.001 |
