Table 1.
Baseline characteristics of the study subjects
| RC group, n = 152 | CC group, n = 151 | P value | |
| Age in yr, mean ± SD | 44.4 ± 17.6 | 46.7 ± 17.0 | 0.248 |
| Children1, n (%) | 4 (2.6) | 4 (2.6) | 1.000 |
| Male, n (%) | 76 (50.0) | 79 (52.3) | 0.687 |
| Body mass index in kg/m2, mean ± SD | 21.1 ± 3.8 | 21.6 ± 3.3 | 0.243 |
| Disease category, n (%) | |||
| Ulcerative colitis | 46 (30.3) | 42 (27.8) | 0.639 |
| Constipation | 43 (28.3) | 50 (33.1) | 0.363 |
| Irritable bowel syndrome | 14 (9.2) | 18 (11.9) | 0.443 |
| Crohn's disease | 6 (3.9) | 3 (2.0) | 0.501 |
| Healthy volunteers | 3 (2.0) | 3 (2.0) | 1.000 |
| Others2 | 40 (26.3) | 35 (23.2) | 0.527 |
| Previous surgery, abdominal or pelvic, n (%) | 38 (25.0) | 33 (21.9) | 0.518 |
1
Aged ≤ 15 years.
2
Other disease categories include antibiotic-associated diarrhea, diabetes, Parkinson’s disease, Tourette's syndrome, autism, epilepsy, cirrhosis, etc. RC: Regular colonoscopy; CC: Cap-assisted colonoscopy.