Polyp and adenoma characteristics
| Characteristics | Routine colonoscopy (n=269) | CADe colonoscopy (n=498) | P value* |
| Pathology | 0.173 | ||
| Carcinoma, n (%) | 0 (0.00) | 0 (0.00) | 1.000 |
| Sessile serrated adenoma/polyp (SSAP), n (%) | 14 (5.20) | 17 (3.41) | 0.541 |
| Adenoma, n (%) | |||
| Advanced adenoma, n (%) | 16 (5.95) | 17 (3.41) | 0.803 |
| Others, n (%) | 144 (53.53) | 245 (49.20) | <0.001 |
| Benign lesions, n (%) | |||
| Hyperplastic and Inflammatory | 94 (34.94) | 217 (43.57) | <0.001 |
| Hamartoma | 0 (0.00) | 0 (0.00) | 1.000 |
| Normal colon mucosa | 1 (0.37) | 2 (0.40) | 0.557 |
| Polyp location | <0.001 | ||
| Caecum, n (%) | 3 (1.12) | 5 (1.00) | 0.462 |
| Ascending, n (%) | 47 (17.47) | 97 (19.48) | <0.001 |
| Transverse, n (%) | 45 (16.73) | 110 (22.09) | <0.001 |
| Descending, n (%) | 26 (9.67) | 75 (15.06) | <0.001 |
| Sigmoid, n (%) | 79 (29.37) | 130 (26.10) | <0.001 |
| Rectum, n (%) | 69 (25.65) | 81 (16.27) | 0.254 |
| Polyp shape | 0.076 | ||
| Pedunculated, n (%) | 38 (14.13) | 49 (9.84) | 0.194 |
| Sessile, n (%) | 98 (36.43) | 176 (35.34) | <0.001 |
| Flat, n (%) | 133 (49.44) | 273 (54.82) | <0.001 |
| Polyp size (mm), mean (SD) | 5.03 (3.72) | 4.51 (2.55) | 0.050 |
| Polyp size category | 0.096 | ||
| 0–5 mm, n (%) | 198 (73.61) | 399 (80.12) | <0.001 |
| 6–10 mm, n (%) | 61 (22.68) | 83 (16.67) | 0.047 |
| >10 mm, n (%) | 10 (3.72) | 16 (3.21) | 0.218 |
| Adenoma location | 0.397 | ||
| Caecum, n (%) | 1 (0.62) | 3 (1.15) | 0.330 |
| Ascending, n (%) | 39 (24.38) | 47 (17.94) | 0.325 |
| Transverse, n (%) | 36 (22.50) | 72 (27.48) | <0.001 |
| Descending, n (%) | 20 (12.50) | 44 (16.79) | 0.003 |
| Sigmoid, n (%) | 41 (25.62) | 64 (24.43) | 0.018 |
| Rectum, n (%) | 23 (14.37) | 32 (12.21) | 0.192 |
| Adenoma shape | 0.277 | ||
| Pedunculated, n (%) | 33 (20.62) | 39 (14.89) | 0.413 |
| Sessile, n (%) | 64 (40.00) | 105 (40.08) | 0.001 |
| Flat, n (%) | 63 (39.38) | 118 (45.04) | <0.001 |
| Adenoma size (mm), mean (SD) | 5.56 (3.54) | 5.26 (3.08) | 0.372 |
| Adenoma size category | 0.169 | ||
| 0–5 mm, n (%) | 102 (63.75) | 185 (70.61) | <0.001 |
| 6–10 mm, n (%) | 50 (31.25) | 61 (23.28) | 0.238 |
| >10 mm, n (%) | 8 (5.00) | 16 (6.11) | 0.097 |
*P value from χ2 test (or Fisher’s exact test, as appropriate).