Table 1 Demographic and clinical characteristics of the study population.
From: Association between red blood cell distribution width and mortality in severe osteomyelitis patients
RDW groups | G1 (RDW ≤ 14.2%) | G2 (RDW > 14.2%) | P |
|---|---|---|---|
N = 559 | N = 550 | ||
Age (years) | 63.7 [54.3; 74.0] | 66.0 [57.1; 74.3] | 0.032 |
Gender | 0.443 | ||
Female | 204 (36.5%) | 214 (38.9%) | |
Male | 355 (63.5%) | 336 (61.1%) | |
BMI (kg/m2) | 28.1 [24.1; 32.9] | 29.9 [24.5; 35.8] | 0.002 |
Weight (kg) | 83.0 [68.8; 100] | 86.4 [69.9; 106] | 0.032 |
Race | 0.408 | ||
Other | 178 (31.8%) | 189 (34.4%) | |
The white race | 381 (68.2%) | 361 (65.6%) | |
Marital status | 0.008 | ||
No | 292 (52.2%) | 332 (60.4%) | |
Yes | 267 (47.8%) | 218 (39.6%) | |
Heart rate | 85.0 [75.0; 97.0] | 84.0 [74.0; 95.0] | 0.411 |
SBP (mmHg) | 117 [108; 130] | 115 [106; 128] | 0.145 |
DBP (mmHg) | 61.0 [55.0; 69.0] | 59.0 [53.0; 67.0] | 0.007 |
MBP (mmHg) | 76.0 [70.0; 85.0] | 74.0 [68.0; 83.0] | 0.003 |
RR | 18.0 [16.0; 21.0] | 18.0 [16.0; 21.0] | 0.339 |
Temperature (℃) | 36.8 [36.6; 37.2] | 36.8 [36.5; 37.0] | 0.002 |
Spo2 (%) | 97.0 [96.0; 99.0] | 97.0 [96.0; 99.0] | 0.756 |
Hypertension | < 0.001 | ||
No | 347 (62.1%) | 264 (48.0%) | |
Yes | 212 (37.9%) | 286 (52.0%) | |
Diabetes | 0.043 | ||
No | 207 (37.0%) | 171 (31.1%) | |
Yes | 352 (63.0%) | 379 (68.9%) | |
Aki -stage | 0.010 | ||
No Aki | 271 (48.5%) | 233 (42.4%) | |
Stage 1 | 157 (28.1%) | 153 (27.8%) | |
Stage 2 | 87 (15.6%) | 88 (16.0%) | |
Stage 3 | 44 (7.87%) | 76 (13.8%) | |
Copd | 0.122 | ||
No | 516 (92.3%) | 492 (89.5%) | |
Yes | 43 (7.69%) | 58 (10.5%) | |
Sepsis | < 0.001 | ||
No | 162 (29.0%) | 107 (19.5%) | |
Yes | 397 (71.0%) | 443 (80.5%) | |
Sofa_score | 2.00 [1.00; 3.00] | 3.00 [2.00; 4.00] | < 0.001 |
Pathogenic bacteria | 0.818 | ||
No | 14 (2.50%) | 16 (2.91%) | |
Yes | 545 (97.5%) | 534 (97.1%) | |
Antibiotic | 0.439 | ||
Other | 13 (2.33%) | 18 (3.27%) | |
Vancomycin | 546 (97.7%) | 532 (96.7%) | |
Lactate (mmol/L) | 1.50 [1.20; 2.10] | 1.60 [1.10; 2.10] | 0.721 |
Hemoglobin (g/dL) | 12.6 [11.4; 13.9] | 11.2 [9.50; 12.6] | < 0.001 |
Creatinine (mg/dL) | 1.10 [0.80; 1.40] | 1.30 [0.90; 2.38] | < 0.001 |
WBC, 109/L | 8.50 [6.40; 11.5] | 9.15 [6.90; 12.9] | 0.006 |
Crp (mg/L) | 52.3 [11.4; 131] | 73.2 [25.0; 136] | 0.002 |
Albumin (g/dL) | 3.70 [3.10; 4.20] | 3.40 [2.70; 3.90] | < 0.001 |
Ca (mg/dL) | 8.90 [8.30; 9.40] | 8.70 [8.20; 9.20] | 0.008 |
Cl (mmol/L) | 101 [98.0; 104] | 100 [97.0; 104] | 0.066 |
K (mmol/L) | 4.30 [3.90; 4.60] | 4.30 [3.90; 4.80] | 0.133 |
Na (mmol/L) | 138 [135; 141] | 138 [135; 140] | 0.555 |
Mg (mmol/L) | 1.90 [1.80; 2.10] | 2.00 [1.80; 2.20] | 0.026 |
pH | 7.38 [7.34; 7.43] | 7.38 [7.32; 7.44] | 0.465 |
RDW (%) | 13.4 [12.9; 13.8] | 15.6 [14.7; 16.8] | < 0.001 |
PCO2 (mmHg) | 41.0 [35.0; 47.0] | 42.0 [37.0; 48.0] | 0.008 |
INR | 1.10 [1.00; 1.20] | 1.20 [1.10; 1.40] | < 0.001 |
Anion gap (mmol/L) | 15.0 [13.0; 17.0] | 16.0 [13.0; 18.0] | 0.006 |
Platelets, 109/L | 256 [198; 314] | 242 [171; 325] | 0.050 |
Mortality 90-day | < 0.001 | ||
No | 551 (98.6%) | 506 (92.0%) | |
Yes | 8 (1.43%) | 44 (8.00%) | |
Mortality 365-day | < 0.001 | ||
No | 531 (95.0%) | 444 (80.7%) | |
Yes | 28 (5.01%) | 106 (19.3%) | |
Los_icu (days) | 2.30 [1.54; 4.12] | 2.76 [1.70; 4.96] | 0.009 |
