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Table 1 Relationship between patient age and clinicopathological features

From: Effectiveness of adjuvant chemotherapy for elderly patients with lymph node-positive colorectal cancer

  Age <75 years Age ≥75 years p
n 151 53  
Age, years 61 (30–74) 81 (75–94)  
Sex (male/female) 85 (56.3 %)/66 (43.7 %) 24 (45.3 %)/29 (54.7 %) 0.16
Body mass index (kg/m2) 23.3 23.5 0.91
Co-morbidity (no/yes) 91 (60.3 %)/60 (39.7 %) 18 (40.0 %)/35 (60.0 %) <0.01
 Hypertension 20 13  
 Diabetes mellitus 12 3  
 Respiratory disease 6 3  
 Heart disease 6 6  
 Renal disease 5 3  
 Brain infarction 5 4  
 Connective tissue disease 3 2  
 Liver disease 3 1  
Performance status (0, 1/2, 3) 137 (90.7 %)/14 (9.3 %) 38 (71.7 %)/15 (28.3 %) <0.01
Location (C/A/T/D/S/R) 8 (5.3 %)/18 (11.9 %)/10 (6.6 %)/8 (5.3 %)/34 (22.5 %)/73 (48.4 %) 4 (7.5 %)/12 (22.6 %)/5 (9.4 %)/3 (5.7 %)/12 (22.6 %)/17 (32.2 %) 0.28
Tumor type (0/1/2/3/4/5) 17 (11.3 %)/25 (16.6 %)/94 (62.2 %)/13 (8.7 %)/1 (0.6 %)/1 (0.6 %) 1 (1.9 %)/7 (13.2 %)/38 (71.7 %)/6 (11.3 %)/0/1 (1.9 %) 0.26
Tumor size (mm) 69 (9–103) 47 (9–87) 0.36
Tumor depth (m/sm/mp/ss/se/ai) 0/2 (1.3 %)/19 (12.6 %)/108 (71.5 %)/12 (7.9 %)/10 (6.7 %) 0/2 (3.8 %)/4 (7.5 %)/37 (69.8 %)/7 (13.2 %)/3 (5.7 %) 0.74
Lymph node metastasis (N1/2/3) 98 (64.9 %)/38 (25.2 %)/15 (9.9 %) 34 (64.2 %)/13 (24.5 %)/6 (11.3 %) 0.95
CEA 8.1 9.1 0.69
CA19-9 26.1 21.4 0.97