Table 2.
Results of univariate analysis for colon cancer (cases n = 84, controls n = 420)
factors | OR | 95%CI | χ2 | P | |
pork eating(y = 1, n = 0) | 1.481 | 0.846 | 2.593 | 1.890 | 0.169 |
drining mixed water source* (y = 1, n = 0) | 2.273 | 1.255 | 4.117 | 7.332 | 0.007 |
drining gutter water (y = 1, n = 0) | 1.639 | 0.777 | 3.457 | 1.680 | 0.195 |
drining well water (y = 1, n = 0) | 0.542 | 0.338 | 0.870 | 6.445 | 0.011 |
chronic diarrhea history(y = 1, n = 0) | 2.018 | 1.003 | 4.060 | 3.871 | 0.049 |
constipaton history(y = 1, n = 0) | 0.483 | 0.171 | 1.363 | 1.888 | 0.169 |
appendicitis history(y = 1, n = 0) | 1.697 | 0.966 | 2.981 | 3.386 | 0.066 |
appendix operating history(y = 1, n = 0) | 1.707 | 0.873 | 3.334 | 2.446 | 0.118 |
intestinal polyps history(y = 1, n = 0) | 6.503 | 2.009 | 21.049 | 9.762 | 0.002 |