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Table 1 Baseline characteristics in patients with or without in-hospital mortality and comparison between patients with and without RDW values

From: The association of Red cell distribution width and in-hospital mortality in older adults admitted to the emergency department

  RDW value recorded
N = 1990
No RDW value recorded
N = 807
p
  Survivors Non-survivors p Survivors Non-survivors p
  N = 1,916 N = 74   N = 788 N = 19  
Demographics        
Age 74.8 ± 7.2 74.9 ± 7.6 0.931 73.8 ± 6.6 77.9 ± 8.3 0.553 0.001
Sex, male 887 (46.3) 49 (66.2) 0.001 402 (51.0) 11 (57.9) 0.008 0.047
Comorbidities        
Cancer 435 (22.7) 46 (62.2) < 0.001 152 (19.4) 7 (36.8) 0.059 0.012
DM 614 (32.0) 18 (24.3) 0.162 247 (31.5) 5 (26.3) 0.633 0.831
HTN 1182 (61.7) 33 (44.6) 0.003 485 (61.8) 14 (73.7) 0.291 0.620
CAD 286 (14.9) 5 (6.8) 0.051 80 (10.2) 4 (21.1) 0.126 0.003
CVA 244 (12.7) 6 (8.1) 0.239 91 (11.6) 4 (21.1) 0.207 0.587
CHF 61 (3.2) 5 (6.8) 0.096 17 (2.2) 1 (5.3) 0.367 0.130
CKD 134 (7.0) 8 (10.8) 0.211 106 (13.5) 2 (10.5) 0.707 < 0.001
Chronic pulmonary disease 259 (13.5) 17 (23.0) 0.021 91 (11.6) 3 (15.8) 0.574 0.131
Laboratory Data        
BUN, mg//dl 22.5 ± 16.5 34.1 ± 20.7 < 0.001 22.2 ± 13.5 29.3 ± 16.7 0.108 0.630
Creatinine, mg/dl 1.2 ± 1.4 1.5 ± 1.0 0.023 1.3 ± 1.4 2.1 ± 3.3 0.465 0.426
Hb, mg/dl 12.6 ± 2.1 11.2 ± 2.3 < 0.001 12.6 ± 2.3 10.0 ± 2.9 0.001 0.442
MCV, fL 91.9 ± 5.6 93.3 ± 7.6 0.118 92.0 ± 6.4 91.6 ± 4.5 0.815 0.910
WBC, 109/L 8.7 ± 4.1 10.6 ± 5.1 0.003 8.7 ± 10.3 14.6 ± 9.0 0.073 0.963
Sodium, mEq/L 138.5 ± 5.2 135.6 ± 7.5 0.002 139.1 ± 5.1 134.3 ± 6.0 0.004 0.092
CRP, mg/dl 3.1 ± 6.0 9.0 ± 8.2 < 0.001 2.7 ± 5.2 4.6 ± 4.0 0.273 0.097
ESR, mm/h 41.8 ± 31.4 67.9 ± 36.5 < 0.001 37.1 ± 29.8 49.1 ± 41.5 0.265 0.004
RDW, % 13.8 ± 1.7 15.9 ± 2.5 < 0.001 NA NA NA < 0.001
Clinical Score        
SOFA 1.9 ± 1.6 4.4 ± 2.7 < 0.001 1.9 ± 1.4 5.7 ± 2.3 < 0.001 0.501
LOS        
Hospital 4.97 ± 9.03 14.00 ± 11.59 < 0.001 3.6 ± 6.0 6.0 ± 7.6 0.196 0.000
ICU 0.53 ± 2.45 4.00 ± 7.87 < 0.001 0.3 ± 2.0 1.5 ± 3.4 0.135 0.001
Vasopressor 46 (2.4 %) 35 (47.3 %) < 0.001 8 (1.0) 6 (31.6) < 0,.001 0.003
Ventilator 33 (1.7 %) 22 (29.7 %) < 0.001 3 (0.4) 4 (21.1) < 0,.001 0.002
  1. Abbreviation: DM diabetes mellitus, HTN hypertension, CAD coronary artery disease, CVA cerebrovascular disease, CHF congestive heart failure, CKD chronic kidney disease, BUN blood urea nitrogen, Hb hemoglobin, MCV mean corpuscular volume, WBC white blood cell, CRP C-reactive protein, ESR erythrocyte sedimentation rate, RDW red cell distribution width, SOFA sequential organ failure score, LOS length of stay