Variable | Category | Total (n = 396) | Age group | p value | |
---|---|---|---|---|---|
≤ 50 years (n = 156) | > 50 years (n = 240) | ||||
Sex | Female | 184 (46.5) | 72 (46.2) | 112 (46.7) | 0.920 |
Male | 212 (53.5) | 84 (53.8) | 128 (53.3) | ||
Symptom | Rectal bleeding | 186 (47) | 74 (47.4) | 112 (46.7) | 0.130 |
Change in bowel habit | 78 (19.7) | 31 (19.9) | 47 (19.6) | ||
Abdominal pain | 65 (16.4) | 24 (15.4) | 41 (17.1) | ||
Melena | 38 (9.6) | 10 (6.4) | 28 (11.7) | ||
Obstruction | 16 (4) | 8 (5.1) | 8 (3.3) | ||
Others | 13 (3.3) | 9 (5.8) | 4 (1.7) | ||
BMI | < 25 | 197 (49.7) | 78 (50) | 119 (49.6) | 0.928 |
25–29.9 | 113 (28.5) | 43 (27.6) | 70 (29.2) | ||
> 29.9 | 86 (21.7) | 35 (22.4) | 51 (21.3) | ||
Family history of cancer | Positive | 45 (11.4) | 18 (11.5) | 27 (11.3) | 0.930 |
Relativeness | First order | 37 (9.3) | 16 (10.3) | 21 (8.8) | 0.919 |
Second order | 7 (1.8) | 3 (1.9) | 4 (1.7) | ||
Family history of CRC | CRC | 29 (7.3) | 14 (9) | 15 (6.3) | 0.371 |
Others | 15 (3.8) | 4 (2.6) | 11 (4.6) | ||
Tumor site | Colon | 160 (40.4) | 52 (33.3) | 108 (45) | 0.021 |
Rectum | 236 (59.6) | 104 (66.7) | 132 (55) | ||
TNM stage | I | 42 (10.6) | 18 (11.5) | 24 (10) | 0.266 |
II | 161 (40.7) | 55 (35.3) | 106 (44.2) | ||
III | 140 (35.4) | 63 (40.4) | 77 (32.1) | ||
IV | 53 (13.4) | 20 (12.8) | 33 (13.8) | ||
Tumor grade | Well | 187 (47.2) | 56 (35.9) | 131 (54.6) | < 0.001 |
Moderate | 166 (41.9) | 77 (49.4) | 89 (37.1) | ||
Poor | 43 (10.9) | 23 (14.7) | 20 (8.3) | ||
Smoker | 28 (41.9) | 7 (4.5) | 21 (8.8) | 0.106 | |
Hypertension | 37 (9.3) | 4 (2.6) | 33 (13.8) | < 0.001 | |
Diabetes mellitus | 26 (6.6) | 3 (1.9) | 23 (9.6) | 0.003 | |
Coronary heart disease | 22 (5.6) | 2 (1.3) | 20 (22) | 0.003 | |
Other diseases | 12 (3) | 2 (1.3) | 10 (4.2) | 0.102 | |
CEA** | < 5 | 271 (68.4) | 102 (65.4) | 169 (70.4) | 0.292 |
≥ 5 | 125 (31.6) | 54 (34.6) | 71 (26.9) | ||
Symptom duration | 6 (4–12) | 6 (4–12) | 6 (3.6–10) | 0.102 |