Table 2.
The demographic characteristics of CRC cases and controls and the prevalence rates of alcohol consumption by subgroup among cases and controls in the NL population-based case-control study of CRC in 1999-2003
| Demographics | Case | Control | Case Drinkersb | Control Drinkers | ||||
|---|---|---|---|---|---|---|---|---|
| N | %a | N | %a | N | % (95% CI) | N | % (95% CI) | |
| Age group | ||||||||
| 20-54 | 186 | 26.5 | 185 | 25.8 | 126 | 67.7 (± 6.7) | 131 | 70.8 (± 6.5) |
| 55-64 | 242 | 34.5 | 264 | 36.8 | 154 | 63.6 (± 6.0) | 174 | 65.9 (± 5.7) |
| 65-74 | 274 | 39.0 | 268 | 37.4 | 152 | 55.5 (± 5.9) | 148 | 55.2 (± 5.9) |
| Sex | ||||||||
| Female | 276 | 39.3 | 293 | 40.9 | 97 | 35.1 (± 5.6) | 114 | 38.9 (± 5.6) |
| Male | 426 | 60.7 | 424 | 59.1 | 335 | 78.6 (± 3.9) | 339 | 80.0 (± 3.9) |
| Region | * | |||||||
| Urban | 302 | 43.0 | 353 | 49.2 | 196 | 64.9 (± 5.4) | 237 | 67.1 (± 4.9) |
| Rural | 400 | 57.0 | 364 | 50.8 | 236 | 59.0 (± 4.8) | 216 | 59.3 (± 5.0) |
| Education | *** | |||||||
| High school or less | 446 | 63.53 | 349 | 48.68 | 251 | 56.2 (± 4.5) | 201 | 57.6 (± 5.2) |
| College+ | 256 | 36.47 | 368 | 51.32 | 181 | 70.7 (± 5.6) | 252 | 68.5 (± 4.8) |
| Marital status | ||||||||
| Married | 540 | 76.92 | 579 | 80.75 | 364 | 64.9 (± 4.9) | 382 | 65.9 (± 3.8) |
| Single/div./sep./wid. | 162 | 23.08 | 138 | 19.25 | 86 | 53.1 (± 7.7) | 71 | 51.4 (± 8.3) |
| Family history of CRC | *** | |||||||
| No | 540 | 76.92 | 614 | 85.63 | 342 | 63.3 (± 4.1) | 394 | 64.1 (± 3.8) |
| Yes | 162 | 23.08 | 103 | 14.37 | 90 | 55.5 (± 7.7) | 59 | 57.2 (± 9.5) |
| Diabetes | *** | |||||||
| No | 555 | 79.06 | 623 | 86.89 | 97 | 35.1 (± 5.6) | 114 | 38.9 (± 5.6) |
| Yes | 147 | 20.94 | 94 | 13.11 | 335 | 78.6 (± 3.9) | 339 | 80.0 (± 3.9) |
| Any laxatives use | *** | |||||||
| No | 573 | 81.62 | 657 | 91.63 | 97 | 35.1 (± 5.6) | 114 | 38.9 (± 5.6) |
| Yes | 129 | 18.38 | 60 | 8.37 | 335 | 78.6 (± 3.9) | 339 | 80.0 (± 3.9) |
| Obesity | * | |||||||
| No (BMI < 30) | 503 | 71.7 | 556 | 77.5 | 295 | 58.6 (± 4.3) | 359 | 64.6 (± 4.0) |
| Yes (BMI ≥ 30) | 199 | 28.4 | 161 | 22.5 | 137 | 68.6 (± 6.2) | 94 | 58.4 (± 7.6) |
| Cigarette smoking | *** | |||||||
| No | 201 | 28.6 | 170 | 37.7 | 70 | 34.9 (± 6.7) | 127 | 47.0 (± 5.9) |
| Yes | 501 | 71.4 | 447 | 62.3 | 362 | 72.3 (± 4.0) | 326 | 72.9 (± 4.1) |
| Cholesterol level | ** | |||||||
| Low | 494 | 70.4 | 451 | 62.9 | 303 | 61.3 (± 4.3) | 286 | 63.4 (± 4.4) |
| High | 208 | 29.6 | 266 | 37.1 | 129 | 62.0 (± 6.6) | 167 | 62.8 (± 5.8) |
| Aspirin | * | |||||||
| No | 522 | 74.4 | 492 | 68.6 | 306 | 58.6 (± 4.2) | 306 | 62.2 (± 4.3) |
| Yes | 180 | 25.6 | 225 | 31.4 | 126 | 70.0 (± 6.7) | 147 | 65.3 (± 6.2) |
| Fruits daily | *** | |||||||
| ≤ 2 servings | 519 | 73.9 | 471 | 65.7 | 312 | 60.1 (± 4.2) | 295 | 62.6 (± 4.3) |
| 3+ servings | 183 | 26.1 | 246 | 34.3 | 120 | 65.6 (± 6.9) | 158 | 64.0 (± 7.8) |
| Calcium pills/tablets | *** | |||||||
| No | 608 | 86.6 | 568 | 79.2 | 386 | 63.5 (± 4.8) | 383 | 67.4 (± 3.8) |
| Yes | 94 | 13.4 | 149 | 21.8 | 46 | 48.9 (± 10.1) | 70 | 47.0 (± 8.0) |
| Total | 702 | 100.0 | 717 | 100.0 | 432 | 61.5 (± 3.6) | 453 | 63.2 (± 3.6) |
aColumn% and X2: *P < 0.05 **P < 0.01 ***P < 0.001
bNumber, percentage of drinkers and 95% CI of the percentage