TABLE 1.
Sample characteristics stratified by preliminary screening results
| Total | Preliminary screening results | ||||
|---|---|---|---|---|---|
| Only HRFQ+ | Only FIT+ | HRFQ+ and FIT+ | All positive | ||
| All | 6971 | 810 | 325 | 84 | 1219 |
| Gender, n (%) | |||||
| Female | 4211 (60.4) | 507 (62.6) | 188 (57.9) | 44 (52.4) | 739 (60.6) |
| Male | 2760 (39.6) | 303 (37.4) | 137 (42.1) | 40 (47.6) | 480 (39.4) |
| Age, mean ± SD, n (%) | 60.0 ± 7.2 | 59.4 ± 7.6 | 61.2 ± 7.7 | 60.1 ± 8.1 | 59.9 ± 7.7 |
| ≤60 years | 3725 (53.4) | 450 (55.6) | 142 (43.7) | 35 (41.7) | 627 (51.4) |
| >60 years | 3246 (46.6) | 360 (44.4) | 183 (56.3) | 49 (58.3) | 592 (48.6) |
| Marital status, n (%) | |||||
| Single/divorce/bereft spouse | 674 (9.7) | 127 (15.7) | 26 (8.0) | 13 (15.5) | 166 (13.6) |
| Married | 6297 (90.3) | 683 (84.3) | 299 (92.0) | 71 (84.5) | 1053 (86.4) |
| Education level, n (%) | |||||
| Primary school or below | 635 (9.1) | 74 (9.1) | 30 (9.2) | 4 (4.8) | 108 (8.9) |
| Middle school | 5169 (74.2) | 509 (62.8) | 241 (74.2) | 51 (60.7) | 801 (65.7) |
| College or above | 1167 (16.7) | 227 (28.0) | 54 (16.6) | 29 (34.5) | 310 (25.4) |
| Former/current smoker, n (%) | 319 (4.6) | 62 (7.7) | 21 (6.5) | 9 (10.7) | 92 (7.5) |
| Alcohol drinking, n (%) | 97 (1.4) | 25 (3.1) | 4 (1.2) | 2 (2.4) | 31 (2.5) |
| History of night work, n (%) | 283 (4.1) | 65 (8.0) | 19 (5.9) | 6 (7.1) | 90 (7.4) |
| Sedentary for more than half of working time, n (%) | 1306 (18.7) | 218 (26.9) | 93 (28.6) | 33 (39.3) | 344 (28.2) |
| History of diabetes, n (%) | 282 (4.1) | 46 (5.7) | 19 (5.8) | 5 (6.0) | 70 (5.7) |
| Overweight or obesity, n (%) | 610 (8.7) | 110 (13.6) | 44 (13.5) | 12 (14.3) | 166 (13.6) |
Abbreviations: FIT, fecal immunological test; HRFQ, high risk factor questionnaire; SD, standard deviation.