| Presence of colorectal tumor n (%) | Absence of colorectal tumor n (%) | Total n | OR (95% CI) | p-value | Adjusted OR (95% CI) | Adjusted p-value |
Age ≥ 50 years | 47 (10.9) | 385 (89.1) | 432 | 1.141 (0.688 - 1.891) | 0.607 |
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Male | 33 (8.0) | 378 (92.0) | 411 | 0.566 (0.349 - 0.919) | 0.021 | 0.630 (0.368 - 1.080) | 0.093 |
Complete colonoscopy | 32 (5.8) | 519 (92.4) | 551 | 0.184 (0.111 - 0.302) | <0.001 | 0.167 (0.096 - 0.289) | <0.001 |
Screening |
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Positive hemocult | 1 (10.0) | 9 (90.0) | 10 | 0.959 (0.120 - 7.677) | 1.000 |
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Family history of colorectal cancer | 0 (0) | 6 (100) | 6 | / | 1.000 |
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Surveillance |
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Colorectal cancer surveillance | 5 (23.8) | 16 (76.2) | 21 | 2.822 (1.003 - 7.939) | 0.057 | 4.783 (1.536 - 14.893) | 0.007 |
Polyp monitoring | 0 (0) | 8 (100) | 8 | / | 1.000 |
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Surveillance of ulcerative colitis | 0 (0) | 7 (100.0) | 7 | / | 1.000 |
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Symptom evaluation |
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Rectorrhagia | 25 (11.9) | 185 (88.1) | 210 | 1.252 (0.751 - 2.087) | 0.393 |
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Abdominal pain | 15 (8.0) | 173 (92.0) | 188 | 0.685 (0.378 - 1.239) | 0.197 |
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Constipation | 11 (8.7) | 116 (91.3) | 127 | 0.787 (0.402 - 1.540) | 0.475 |
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Iron deficiency anemia | 5 (8.6) | 53 (91.4) | 58 | 0.801(0.310 - 2.072) | 0.639 |
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Emaciation | 14 (25.0) | 42 (75.0) | 56 | 3.317 (1.713 - 6.421) | 0.001 | 5.143 (2.450 - 10.797) | <0.001 |
Diarrhea | 6 (15.4) | 33 (84.6) | 39 | 1.620 (0.655 - 4.006) | 0.280 |
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Abdominal or rectal mass | 14 (45.2) | 17 (54.8) | 31 | 8.537 (4.011 - 18.170) | <0.001 | 13.390 (5.684 - 31.544) | <0.001 |
Alternating diarrhea constipation | 1 (5.0) | 19 (95.0) | 20 | 0.447 (0.059 - 3.388) | 0.711 |
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Proctalgia | 2 (10.0) | 18 (90.0) | 20 | 0.958 (0.218 - 4.215) | 1.000 |
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Melena | 1 (7.7) | 12 (92.3) | 13 | 0.716 (0.092 - 5.584) | 1.000 |
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