Table 5.
Results of multivariate analysis for rectal cancer
| factors | OR | 95%CI | P | |
| drinking mixed water source (y = 1, n = 0) | 1.951 | 1.086 | 3.506 | 0.025 |
| mucous blood history (y = 1, n = 0) | 2.139 | 1.040 | 4.402 | 0.039 |
| factors | 2.870 | 1.117 | 7.371 | 0.029 |
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