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Table 1 Patient characteristics (n = 830)

From: Controlling nutritional status (CONUT) score as a preoperative risk assessment index for older patients with colorectal cancer

  Total (n = 830) CONUT score p value
0/1 (n = 508, 61%) 2/3 (n = 249, 30%) ≥4 (n = 73, 9%)
Age, years      0.022
 median (range) 78 (75–94) 78 (75–92) 79 (75–94) 80 (75–88)  
Sex      0.115
 Male 470 (57%) 277 (55%) 144 (58%) 49 (67%)  
 Female 360 (43%) 231 (45%) 105 (42%) 24 (33%)  
BMI      0.055
  < 25 681 (82%) 408 (80%) 206 (83%) 67 (92%)  
  ≥ 25 149 (18%) 100 (20%) 43 (17%) 6 (8%)  
Primary tumor site      0.380
 Colon 653 (79%) 398 (78%) 193 (78%) 62 (85%)  
 Rectum 177 (21%) 110 (22%) 56 (22%) 11 (15%)  
Stage      0.045
 I 224 (27%) 152 (30%) 59 (24%) 13 (18%)  
 II 258 (31%) 152 (30%) 77 (32%) 29 (40%)  
 III 258 (31%) 159 (31%) 80 (32%) 19 (26%)  
 IV 90 (11%) 45 (9%) 33 (13%) 12 (16%)  
ASA-PS      < 0.001
 1 98 (12%) 71 (14%) 22 (9%) 5 (7%)  
 2 571 (69%) 360 (71%) 175 (70%) 36 (49%)  
 3 161 (19%) 77 (15%) 52 (21%) 32 (44%)  
CCI      0.001
 2 532 (64%) 345 (68%) 151 (61%) 36 (49%)  
 3 156 (19%) 95 (19%) 48 (19%) 13 (18%)  
 ≥ 4 142 (17%) 68 (13%) 50 (20%) 24 (33%)  
NIA/NCI      0.001
 0/1 376 (45%) 246 (48%) 100 (40%) 30 (41%)  
 2/3 381 (46%) 233 (46%) 119 (48%) 29 (40%)  
 ≥ 4 73 (9%) 29 (6%) 30 (12%) 14 (19%)  
ACE-27      0.130
 Normal 0 0 0 0  
 Mild 0 0 0 0  
 Moderate 487 (59%) 310 (61%) 133 (53%) 44 (60%)  
 Severe 343 (41%) 198 (39%) 116 (47%) 29 (40%)  
  1. CONUT Controlling Nutritional Status, BMI body mass index, ASA-PS American Society of Anesthesiologists Physical Status classification, CCI Charlson Comorbidity Index, NIA/NCI National Institute on Aging and National Cancer Institute Comorbidity Index, ACE-27 Adult Comorbidity Evaluation-27