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| Number of study subjects | Nested PCR | Vi positivity | Widal titre | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Study groups | Positivity | (titre ≥ 1 : 160) | TO | TH | AH | ||||||
| No. | % | No. | % | No. | % | No. | % | No. | % | ||
| Ulcerative colitis (UC) | 59 | 47 | 79.7 | 4 | 6.8 | 11 | 18.6 | 23 | 39.0 | 2 | 3.4 |
| Irritable bowel syndrome (IBS) | 127 | 84 | 66.1 | 14 | 11.0 | 12 | 12.6 | 86 | 67.7 | 2 | 1.6 |
| Colon cancer (CC) | 28 | 15 | 53.6 | 3 | 10.7 | 10 | 35.5 | 16 | 57.1 | 1 | 3.6 |
| Apparently healthy controls (HC) | 190 | 31 | 16.3 | 23 | 12.1 | 29 | 15.3 | 24 | 12.6 | 2 | 2.1 |
