Table 2.
Colon cleansing level graded in accordance with the Boston Bowel Preparation Score and bowel preparation time
| Intention‐to‐treat analysis | Per‐protocol analysis | |||||
|---|---|---|---|---|---|---|
| Group A | Group B | P value | Group A | Group B | P value | |
| Number of patients (n) | 105 | 105 | 99 | 97 | ||
| Colon cleansing | ||||||
| BBPS, whole colon | 8.3 ± 1.0 | 8.3 ± 0.7 | 0.66 | 8.3 ± 1.0 | 8.3 ± 0.7 | 0.66 |
| BBPS, right colon | 2.5 ± 0.5 | 2.5 ± 0.5 | 0.22 | 2.5 ± 0.5 | 2.5 ± 0.5 | 0.20 |
| BBPS, transverse colon | 2.9 ± 0.4 | 2.9 ± 0.3 | 0.16 | 2.9 ± 0.3 | 2.9 ± 0.3 | 0.20 |
| BBPS, left colon | 2.9 ± 0.5 | 2.9 ± 0.2 | 0.11 | 2.9 ± 0.5 | 2.9 ± 0.2 | 0.19 |
| Preparation rating | ||||||
| Excellent (BBPS 8–9) | 87 (82.8%) | 92 (87.6%) | 0.12 | 82 (82.8%) | 87 (89.7%) | 0.21 |
| Good (BBPS 6–7) | 12 (11.4%) | 10 (9.5%) | 12 (12.1%) | 9 (9.3%) | ||
| Poor (BBPS 3–5) | 6 (5.7%) | 1 (1.0%) | 5 (5.1%) | 1 (1.0%) | ||
| Inadequate (BBPS 0–2) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | ||
| First defecation time (h) | 4.4 ± 5.5 | 6.7 ± 3.8 | <0.001 | 4.5 ± 5.6 | 6.7 ± 3.2 | <0.001 |
| Number of defecation of the day before | 3.2 ± 2.8 | 3.0 ± 3.3 | 0.56 | 3.2 ± 2.7 | 2.9 ± 3.3 | 0.54 |
| Bowel preparation time (min) | 351.0 ± 81.3 | 332.1 ± 81.5 | 0.10 | 350.4 ± 81.4 | 330.8 ± 82.5 | 0.10 |
| Requirement of additional laxative | 26 (24.8%) | 26 (24.8%) | 1.00 | 25 (25.3%) | 25 (25.8%) | 1.00 |
BBPS, Boston Bowel Preparation Score. Results are presented as mean ± standard deviation or number of patients.