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Table 1 Characteristics on admission, during the intensive care unit (ICU) stay, at ICU discharge, and at hospital discharge in patients with normal versus high red cell distribution width

From: High red blood cell distribution width as a marker of hospital mortality after ICU discharge: a cohort study

Variable Normal RDW (≤ 14.5%) n = 1525 High RDW (> 14.5%) n = 1841 p
At ICU admission
 Age 61.8 ± 17.5 67.7 ± 15.1 < 0.001
 Female sex 502 (33%) 742 (40%) < 0.001
 Cancer 86 (5.6%) 298 (16.2%) < 0.001
 Hepatic cirrhosis 14 (0.9%) 106 (5.8%) < 0.001
 SAPS3 mortality risk, % 11 [5.0–21.9] 25 [12.6–44.6] < 0.001
During ICU stay
 Blood transfusion 45 (2.9%) 347 (18.8%) < 0.001
 Delirium 68 (4.5%) 144 (7.8%) < 0.001
 Vasoactive drugs 209 (14%) 608 (33%) < 0.001
 Mechanical ventilation 239 (16%) 585 (32%) < 0.001
 Acute renal failure 170 (11%) 533 (29%) < 0.001
At ICU discharge
 ICU length of stay, days 2.3 [1.6–4.0] 3.3 [1.9–5.9] < 0.001
 Sabadell score:    < 0.001
  0 1272 (79.8%) 1084 (57.4%)  
  1 176 (11.0%) 465 (24.6%)  
  2 62 (3.9%) 216 (11.4%)  
  3 15 (0.9%) 76 (4.0%)  
Red cell distribution width, % 13.7 ± 0.54 16.9 ± 2.56 < 0.001
At hospital discharge:    
 Ward length of stay, d 6 [4–10.5] 9 [5–16] < 0.001
 Ward mortality 21 (1.3%) 155 (8.2%) < 0.001
  1. RDW red cell distribution width, SAPS3 Simplified Acute Physiologic Score 3, ICU intensive care unit