Table 1.
Characteristics and clinical features between colorectal cancer cases and controls
| Variables | Stage 1 | Stage 2 | Combineda | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases, N (%) | Control, N (%) | P | Cases, N (%) | Control, N (%) | P | Cases, N (%) | Control, N (%) | P | |||
| Age (mean ± SD) | 60.6±13.8 | 59.2±15.3 | 0.673 | 60.7±12.0 | 59.7±14.5 | 0.611 | 60.7±12.5 | 59.5±14.7 | 0.500 | ||
| Sex | |||||||||||
| Male | 23 (57.5%) | 22 (55.0%) | 0.822 | 60 (56.1%) | 45 (55.6%) | 0.943 | 83 (56.5%) | 67 (55.4%) | 0.858 | ||
| Female | 17 (42.5%) | 18 (45.0%) | 47 (43.9%) | 36 (44.4%) | 64 (43.5%) | 54 (44.6%) | |||||
| Smoking status | |||||||||||
| Never | 27 (67.5%) | 26 (76.0%) | 0.813 | 77 (72.0%) | 66 (81.5%) | 0.130 | 104 (70.8%) | 92 (76.0%) | 0.331 | ||
| Ever | 13 (32.5%) | 14 (24.0%) | 30 (28.0%) | 15 (18.5%) | 43 (29.2%) | 29 (24.0%) | |||||
| Drinking status | |||||||||||
| Never | 25 (62.5%) | 31 (77.5%) | 0.143 | 81 (75.7%) | 63 (77.8%) | 0.740 | 106 (72.1%) | 94 (77.7%) | 0.296 | ||
| Ever | 15 (37.5%) | 9 (22.5%) | 26 (24.3%) | 18 (22.2%) | 41 (27.9%) | 27 (22.3%) | |||||
| FH | |||||||||||
| No | 29 (72.5%) | 32 (80.0%) | 0.431 | 81 (75.7%) | 78 (96.3%) | < 0.001 | 110 (74.8%) | 110 (90.9%) | < 0.001 | ||
| Yes | 11 (27.5%) | 8 (20.0%) | 26 (24.3%) | 3 (3.7%) | 37 (25.2%) | 11 (9.1%) | |||||
| Tumor site | |||||||||||
| Colon | 19 (47.5%) | 54 (50.5%) | 73 (49.7%) | ||||||||
| Rectal | 21 (52.5%) | 53 (49.5%) | 74 (50.3%) | ||||||||
| Tumor size | |||||||||||
| ≤ 4.0 cm | 19 (65.5%) | 52 (58.4%) | 71 (60.2%) | ||||||||
| > 4.0 cm | 10 (34.5%) | 37 (41.6%) | 47 (39.8%) | ||||||||
| Tumor grade | |||||||||||
| Low | 4 (10.0%) | 5 (5.1%) | 9 (6.1%) | ||||||||
| Intermediate | 32 (80.0%) | 79 (73.8%) | 111 (75.5%) | ||||||||
| High | 4 (10.0%) | 23 (21.5%) | 27 (18.4%) | ||||||||
| Duke's stage | |||||||||||
| A | 4 (10.0%) | 8 (7.5%) | 12 (8.2%) | ||||||||
| B | 17 (42.5%) | 45 (42.0%) | 62 (42.2%) | ||||||||
| C | 14 (35.0%) | 35 (32.7%) | 49 (33.3%) | ||||||||
| D | 5 (12.5%) | 19 (17.8%) | 24 (16.3%) | ||||||||
aCombine Stage 1 and Stage 2 as the combined stage.
SD, standard deviation.
FH, family history of cancers