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Comparison of symptoms with respect to tumor location n (%)
| Symptom | Left colon n = 139 | Right colon n = 97 | P value |
| Pain | 73 (52.5) | 48 (49.5) | 0.7 |
| Diarrhea | 12 (8.6) | 14 (14.4) | 0.2 |
| Constipation | 47 (33.8) | 22 (22.7) | 0.08 |
| Vomiting | 16 (11.5) | 11 (11.3) | 1 |
| Weight loss | 48 (34.5) | 29 (29.9) | 0.48 |
| Rectal bleeding | 37 (26.6) | 10 (10.3) | 0.002 |
| Melena | 5 (3.6) | 2 (2.1) | 0.71 |
| Change in BH | 68 (48.9) | 30 (30.9) | 0.006 |
Fisher’s exact test. BH: Bowel habits.
