TABLE 1.
The demographic characteristics of valid subjects of A2.
| Group | Total | Gender | Age | ||
|---|---|---|---|---|---|
| Male (%) | Female (%) | Medium (range) | Mean | ||
| CRC | 75 | 54 (72.0) | 21 (28.0) | 57 (28–88) | 57 |
| Right‐side disease a | 19 | 15 (78.9) | 4 (21.1) | 55 (29–81) | 57 |
| Left‐side disease a | 56 | 39 (69.6) | 17 (30.4) | 56.5 (28–88) | 57 |
| Stage I | 7 | 5 (71.4) | 2 (28.6) | 58 (51–88) | 64 |
| Stage II | 19 | 12 (63.2) | 7 (36.8) | 57 (40–68) | 55 |
| Stage III | 18 | 16 (88.9) | 2 (11.1) | 57.5 (32–81) | 59 |
| Stage IV | 3 | 1 (33.3) | 2 (66.7) | 49 (36–62) | 49 |
| Unknown stage | 28 | 20 (71.4) | 8 (28.6) | 56.5 (28–82) | 55.5 |
| PL | 40 | 27 (67.5) | 13 (32.5) | 50 (32–88) | 53 |
| NA | 29 | 19 (65.5) | 10 (34.5) | 49 (32–69) | 49 |
| AA | 11 | 8 (72.7) | 3 (27.3) | 69 (35–88) | 62.4 |
| NED | 171 | 74 (43.3) | 97 (56.7) | 50 (20–78) | 51 |
| Total | 286 | ||||
Abbreviations: AA, advanced adenoma; NA, non‐advanced adenoma; NED, no evidence of disease; PL, precancerous lesions.
a
Includes 1 case of descending colon sigmoid junction carcinoma and 3 cases of rectal sigmoid junction carcinoma.