Table 2.
Distribution of selected demographic variables and risk factors
| All subjects (n = 1373) | Cancer-free (n = 547) | Cancer-bearing (n = 826) | p-value* | |
|---|---|---|---|---|
| Age at death, years† | 80.1 ± 9.0 | |||
| ≥ 80、n (%) | 729 (53) | 300 (55) | 429 (52) | |
| < 80 | 644 (47) | 247 (45) | 397 (48) | 0.2946 |
| Gender, n (%) | ||||
| Male | 743 (54) | 273 (50) | 470 (57) | |
| Female | 630 (46) | 274 (50) | 356 (43) | 0.0128 |
| Smoking, n (%) | ||||
| Non-smoker | 633 (46) | 256 (47) | 377 (45) | |
| Smoker | 655 (48) | 245 (45) | 410 (50) | 0.2776 |
| Missing | 85 (6) | 46 (8) | 39 (5) | |
| Alcohol, n (%) | ||||
| Non-drinker | 833 (61) | 346 (63) | 487 (59) | |
| Drinker | 456 (33) | 157 (29) | 299 (36) | 0.0143 |
| Missing | 84 (6) | 44 (8) | 40 (5) | |
| Cancer, n (%) | ||||
| 0 | 547 (40) | |||
| 1 | 604 (44) | |||
| 2 | 178 (13) | |||
| ≥ 3 | 44 (3) | |||
| Cancer sites, n (%) | ||||
| Gastric cancer | 163 (12) | |||
| colorectal cancer | 130 (10) | |||
| Lung cancer | 128 (9) | |||
| Blood cancer | 127 (9) | |||
† means ± SDs
*p-value for Fisher’s exact probability test