Table 2 Baseline characteristics of patients (grouped according to SHR).
Characteristic | Overall, N = 1,9461 | Q1, N = 4871 | Q2, N = 4861 | Q3, N = 4861 | Q4, N = 4871 | p-value2 |
|---|---|---|---|---|---|---|
SHR | 1.14 [0.91, 1.46] | 0.76 [0.65, 0.84] | 1.02 [0.96, 1.08] | 1.27 [1.20, 1.36] | 1.79 [1.59, 2.10] | < 0.001*** |
Hospital Deaths | 262 (13%) | 44 (9.0%) | 56 (12%) | 65 (13%) | 97 (20%) | < 0.001*** |
Hospital stays (days) | 12 [7, 20] | 11 [6, 19] | 11 [7, 20] | 13 [7, 22] | 12 [7, 20] | 0.009** |
Follow-up time of ARDS (days) | 6 [1, 13] | 7 [2, 13] | 7 [2, 14] | 6 [1, 14] | 5 [0, 12] | 0.005** |
Demographic data | Â | Â | Â | Â | Â | Â |
Age | Â | Â | Â | Â | Â | 0.200 |
< 40 years | 118 (6.1%) | 25 (5.1%) | 29 (6.0%) | 25 (5.1%) | 39 (8.0%) |  |
40–60 years | 577 (30%) | 136 (28%) | 145 (30%) | 140 (29%) | 156 (32%) |  |
> 60 years | 1,251 (64%) | 326 (67%) | 312 (64%) | 321 (66%) | 292 (60%) |  |
Gender | Â | Â | Â | Â | Â | 0.200 |
Female | 796 (41%) | 202 (41%) | 187 (38%) | 189 (39%) | 218 (45%) | Â |
Male | 1,150 (59%) | 285 (59%) | 299 (62%) | 297 (61%) | 269 (55%) | Â |
Race | Â | Â | Â | Â | Â | 0.003** |
Asian | 39 (2.0%) | 9 (1.8%) | 12 (2.5%) | 10 (2.1%) | 8 (1.6%) | Â |
Black | 201 (10%) | 59 (12%) | 43 (8.8%) | 56 (12%) | 43 (8.8%) | Â |
Other | 554 (28%) | 101 (21%) | 151 (31%) | 139 (29%) | 163 (33%) | Â |
White | 1,152 (59%) | 318 (65%) | 280 (58%) | 281 (58%) | 273 (56%) | Â |
Marital status |  |  |  |  |  | < 0.001*** |
Divorced | 146 (7.5%) | 49 (10%) | 31 (6.4%) | 34 (7.0%) | 32 (6.6%) | Â |
Married | 792 (41%) | 220 (45%) | 197 (41%) | 191 (39%) | 184 (38%) | Â |
Other | 273 (14%) | 39 (8.0%) | 67 (14%) | 75 (15%) | 92 (19%) | Â |
Single | 536 (28%) | 129 (26%) | 133 (27%) | 134 (28%) | 140 (29%) | Â |
Widowed | 199 (10%) | 50 (10%) | 58 (12%) | 52 (11%) | 39 (8.0%) | Â |
Laboratory data | Â | Â | Â | Â | Â | Â |
SBP | Â | Â | Â | Â | Â | 0.247 |
< 90 mmHg | 17 (0.9%) | 0 (0%) | 8 (1.6%) | 4 (0.8%) | 5 (1.0%) | Â |
90–120 mmHg | 418 (21%) | 111 (23%) | 105 (22%) | 108 (22%) | 94 (19%) |  |
> 120 mmHg | 661 (34%) | 169 (35%) | 164 (34%) | 164 (34%) | 164 (34%) | Â |
DBP | Â | Â | Â | Â | Â | 0.130 |
< 60 mmHg | 151 (7.8%) | 31 (6.4%) | 41 (8.4%) | 42 (8.6%) | 37 (7.6%) | Â |
60–80 mmHg | 677 (35%) | 189 (39%) | 180 (37%) | 155 (32%) | 153 (31%) |  |
> 80 mmHg | 268 (14%) | 60 (12%) | 56 (12%) | 79 (16%) | 73 (15%) | Â |
BMI | Â | Â | Â | Â | Â | 0.400 |
Normal | 172 (8.8%) | 38 (7.8%) | 36 (7.4%) | 48 (9.9%) | 50 (10%) | Â |
Obesity | 512 (26%) | 140 (29%) | 117 (24%) | 134 (28%) | 121 (25%) | Â |
Overweight | 261 (13%) | 65 (13%) | 77 (16%) | 62 (13%) | 57 (12%) | Â |
Underweight | 25 (1.3%) | 3 (0.6%) | 8 (1.6%) | 7 (1.4%) | 7 (1.4%) | Â |
Albumin | Â | Â | Â | Â | Â | 0.004** |
< 3.5Â g/dL | 1,086 (56%) | 251 (52%) | 257 (53%) | 282 (58%) | 296 (61%) | Â |
≥ 3.5 g/dL | 302 (16%) | 68 (14%) | 77 (16%) | 81 (17%) | 76 (16%) |  |
ALP, IU/L | 87 [63, 119] | 93 [69, 126] | 85 [62, 112] | 84 [61, 116] | 84 [61, 113] | < 0.001*** |
ALT, IU/L | 39 [20, 82] | 38 [18, 81] | 36 [18, 64] | 39 [22, 78] | 46 [23, 114] | < 0.001*** |
AST, IU/L | 55 [28, 118] | 55 [26, 110] | 46 [25, 93] | 56 [29, 106] | 66 [32, 189] | < 0.001*** |
Basophils | Â | Â | Â | Â | Â | 0.379 |
< 2% | 1,284 (66%) | 313 (64%) | 312 (64%) | 326 (67%) | 333 (68%) | Â |
≥ 2% | 5 (0.3%) | 1 (0.2%) | 1 (0.2%) | 3 (0.6%) | 0 (0%) |  |
Creatinine kinase MB |  |  |  |  |  | < 0.001*** |
< 10 ng/mL | 644 (33%) | 166 (34%) | 169 (35%) | 165 (34%) | 144 (30%) | Â |
≥ 10 ng/mL | 362 (19%) | 65 (13%) | 71 (15%) | 93 (19%) | 133 (27%) |  |
Creatinine, mg/dL | 1.20 [0.80, 1.80] | 1.10 [0.80, 1.80] | 1.00 [0.80, 1.40] | 1.20 [0.80, 1.90] | 1.30 [1.00, 2.00] | < 0.001*** |
Eosinophils | Â | Â | Â | Â | Â | 0.200 |
< 4% | 1,176 (60%) | 280 (57%) | 280 (58%) | 304 (63%) | 312 (64%) | Â |
≥ 4% | 113 (5.8%) | 34 (7.0%) | 33 (6.8%) | 25 (5.1%) | 21 (4.3%) |  |
Glucose, mg/dL | 146 [113, 206] | 101 [88, 126] | 123 [109, 146] | 157 [139, 188] | 241 [187, 317] | < 0.001*** |
HbA1c, % | 6.00 [5.50, 7.00] | 6.20 [5.70, 8.10] | 5.80 [5.40, 6.60] | 5.90 [5.40, 6.70] | 6.00 [5.40, 7.00] | < 0.001*** |
Lactate |  |  |  |  |  | < 0.001*** |
< 2 mmol/L | 925 (48%) | 230 (47%) | 266 (55%) | 240 (49%) | 189 (39%) | Â |
≥ 2 mmol/L | 616 (32%) | 115 (24%) | 98 (20%) | 156 (32%) | 247 (51%) |  |
Lymphocytes |  |  |  |  |  | < 0.001*** |
< 18% | 1,067 (55%) | 230 (47%) | 265 (55%) | 282 (58%) | 290 (60%) | Â |
18–42% | 208 (11%) | 80 (16%) | 45 (9.3%) | 45 (9.3%) | 38 (7.8%) |  |
> 42% | 14 (0.7%) | 4 (0.8%) | 3 (0.6%) | 2 (0.4%) | 5 (1.0%) | Â |
Monocytes | Â | Â | Â | Â | Â | 0.400 |
< 2% | 83 (4.3%) | 16 (3.3%) | 16 (3.3%) | 26 (5.3%) | 25 (5.1%) | Â |
2–11% | 1,087 (56%) | 264 (54%) | 270 (56%) | 269 (55%) | 284 (58%) |  |
> 11% | 119 (6.1%) | 34 (7.0%) | 27 (5.6%) | 34 (7.0%) | 24 (4.9%) | Â |
Neutrophils | Â | Â | Â | Â | Â | 0.070 |
< 50% | 34 (1.7%) | 9 (1.8%) | 7 (1.4%) | 8 (1.6%) | 10 (2.1%) | Â |
50–70% | 233 (12%) | 77 (16%) | 53 (11%) | 55 (11%) | 48 (9.9%) |  |
> 70% | 1,022 (53%) | 228 (47%) | 253 (52%) | 266 (55%) | 275 (56%) | Â |
PaCO2, mmHg | 40 [36, 44] | 40 [36, 44] | 39 [36, 43] | 39 [35, 44] | 40 [35, 46] | 0.100 |
Platelets, K/uL | 189 [133, 251] | 194 [135, 258] | 185 [133, 251] | 187 [138, 246] | 192 [127, 253] | 0.800 |
PaO2, mmHg | 108 [68, 152] | 108 [66, 146] | 110 [72, 151] | 106 [66, 156] | 106 [66, 155] | 0.700 |
Potassium |  |  |  |  |  | < 0.001*** |
< 3.3 mEq/L | 193 (9.9%) | 35 (7.2%) | 47 (9.7%) | 44 (9.1%) | 67 (14%) | Â |
≥ 3.3 mEq/L | 709 (36%) | 148 (30%) | 160 (33%) | 188 (39%) | 213 (44%) |  |
PaO2/FiO2 | 208 [115, 323] | 211 [118, 308] | 202 [118, 328] | 203 [115, 324] | 208 [111, 331] | 0.916 |
Urea nitrogen, mg/dL | 23 [15, 39] | 22 [14, 40] | 21 [14, 32] | 24 [16, 39] | 26 [17, 44] | < 0.001*** |
WBC, K/uL | 12 [9, 16] | 11 [8, 14] | 11 [8, 14] | 13 [9, 17] | 14 [10, 19] | < 0.001*** |
Complications and Treatment | Â | Â | Â | Â | Â | Â |
Acute pancreatitis | 59 (3.0%) | 10 (2.1%) | 15 (3.1%) | 16 (3.3%) | 18 (3.7%) | 0.500 |
Cerebrovascular disease | 628 (32%) | 137 (28%) | 192 (40%) | 174 (36%) | 125 (26%) | < 0.001*** |
CNS inflammation | 147 (7.6%) | 39 (8.0%) | 32 (6.6%) | 46 (9.5%) | 30 (6.2%) | 0.200 |
COPD | 436 (22%) | 119 (24%) | 96 (20%) | 100 (21%) | 121 (25%) | 0.130 |
Diabetes | 895 (46%) | 261 (54%) | 184 (38%) | 199 (41%) | 251 (52%) | < 0.001*** |
Hypertension | 790 (41%) | 188 (39%) | 208 (43%) | 219 (45%) | 175 (36%) | 0.017* |
Insulin | 1,163 (60%) | 293 (60%) | 273 (56%) | 264 (54%) | 333 (68%) | < 0.001*** |
Respiratory failure | 815 (42%) | 171 (35%) | 173 (36%) | 226 (47%) | 245 (50%) | < 0.001*** |
Scores: | Â | Â | Â | Â | Â | Â |
LODS | 5 [3, 7] | 5 [3, 7] | 5 [3, 6] | 5 [3, 7] | 6 [4, 8] | < 0.001*** |
OASIS | 33 [28, 39] | 32 [27, 38] | 33 [28, 38] | 34 [29, 39] | 35 [29, 41] | < 0.001*** |
SIRS |  |  |  |  |  | < 0.001*** |
0 | 14 (0.7%) | 2 (0.4%) | 4 (0.8%) | 6 (1.2%) | 2 (0.4%) | Â |
1 | 154 (7.9%) | 49 (10%) | 43 (8.8%) | 28 (5.8%) | 34 (7.0%) | Â |
2 | 529 (27%) | 167 (34%) | 146 (30%) | 121 (25%) | 95 (20%) | Â |
3 | 816 (42%) | 192 (39%) | 195 (40%) | 217 (45%) | 212 (44%) | Â |
4 | 433 (22%) | 77 (16%) | 98 (20%) | 114 (23%) | 144 (30%) | Â |
SOFA | 4.00 [2.00, 5.00] | 3.00 [2.00, 5.00] | 3.00 [2.00, 5.00] | 4.00 [2.00, 5.00] | 4.00 [3.00, 7.00] | < 0.001*** |