Table 1.
Comparison of general data (n/%, x̅±sd)
| Items | Control group | Observation group | χ2/t | P |
|---|---|---|---|---|
| Case (n) | 439 | 439 | ||
| Gastric/colorectal cancer | 165/274 | 181/258 | 1.221 | 0.269 |
| Gender (male/female, case) | 242/197 | 255/184 | 0.784 | 0.376 |
| Age (years old) | 61.6±7.3 | 61.2±6.9 | 0.834 | 0.404 |
| Body mass index (kg/m2) | 22.57±2.54 | 22.42±2.58 | 0.868 | 0.386 |
| Comorbidities | ||||
| Hypertension (n) | 178 | 192 | 0.916 | 0.339 |
| Diabetes (n) | 135 | 157 | 2.483 | 0.115 |
| Hyperlipidemia (n) | 111 | 129 | 1.858 | 0.173 |
| Smoking (n) | 208 | 232 | 2.624 | 0.105 |
| Drinking (n) | 285 | 297 | 0.734 | 0.392 |
| Family history of gastric cancer (n) | 120 | 109 | 0.715 | 0.398 |
| Family history of colorectal cancer (n) | 198 | 173 | 2.917 | 0.088 |
| Gastric cancer staging | ||||
| 0 | 15 | 18 | ||
| I | 53 | 49 | 1.119 | 0.772 |
| II | 64 | 77 | ||
| III | 33 | 37 | ||
| Colon cancer staging | ||||
| 0 | 17 | 16 | ||
| I | 85 | 80 | 0.011 | 1.000 |
| II | 102 | 97 | ||
| III | 70 | 65 |
Note: χ2, statistic value from chi-square test; t, statistic value from t-test.