Ottawa Bowel Preparation Scores
| Clear fluid diet | Low-residue breakfast | p Value | |
|---|---|---|---|
| Intention-to-treat analysis | n=109 | n=105 | |
| Total OBPS, mean±SD | 4.97±3.28 | 4.97±2.83 | |
| (95% CI) | (4.35 to 5.59) | 4.42 to 5.52) | 0.999 |
| Total OBPS, mean difference | −0.01 | ||
| (95% CI) | (−0.83 to 0.83) | ||
| Right OBPS, mean±SD | 1.72±1.18 | 1.80±1.05 | 0.597 |
| (95% CI) | (1.48 to 1.95) | (1.59 to 2.02) | |
| Fluid score, mean±SD | 0.47±0.66 | 0.59±0.67 | |
| (95% CI) | (0.34 to 0.61) | (0.46 to 0.72) | 0.220 |
| Per-protocol analysis | n=116 | n=98 | |
| Total OBPS, mean±SD | 4.68±3.14 | 5.32±2.94 | 0.124 |
| (95% CI) | (4.10 to 5.25) | (4.73 to 5.92) | |
| Total OBPS, mean difference | −0.65 | ||
| (95% CI) | (−1.47 to 0.18) | ||
| Right OBPS, mean±SD | 1.62±1.16 | 1.93±1.04 | 0.050 |
| (95% CI) | (1.39 to 1.84) | (1.71 to 2.15) | |
| Fluid Score, mean±SD | 0.45±0.64 | 0.63±0.69 | 0.069 |
| (95% CI) | (0.33 to 0.58) | (0.48 to 0.77) | |
| Stratified by bowel preparation timing | |||
| Traditional dosing (n=93) | |||
| Total OBPS, mean±SD | 5.77±3.32 | 5.41±2.83 | 0.585 |
| (95% CI) | (4.81 to 6.72) | (4.54 to 6.28) | |
| Split-dosing (n=121) | |||
| Total OBPS, mean±SD | 4.32±3.13 | 4.56±2.72 | 0.651 |
| (95% CI) | (3.51 to 5.12) | (3.86 to 5.26) | |