Table 5.
Subgroup analysis of subjects aged 45 years or older.
| Outcomes | Formula LRD group (n = 165) | Self-prepared LRD group (n = 135) | P |
|---|---|---|---|
| Adequate bowel preparation rate | 154 (93.3) | 110 (81.5) | 0.002 |
| Excellent bowel preparation rate | 49 (29.7) | 19 (14.1) | 0.001 |
| BBPS scores | |||
| Total scores | 7.76 ± 1.09 | 6.74 ± 1.53 | <0.001* |
| Right colon | 2.32 ± 0.58 | 2.00 ± 0.67 | <0.001* |
| Transverse | 2.75 ± 0.44 | 2.36 ± 0.63 | <0.001* |
| Left colon | 2.70 ± 0.47 | 2.39 ± 0.56 | <0.001* |
| Dietary compliance rate | 158 (95.8) | 103 (76.3) | <0.001 |
| Tolerance | |||
| Degree of hunger | 8.26 ± 2.18 | 6.44 ± 2.01 | <0.001* |
| Intension of physical strength | 8.32 ± 2.50 | 6.75 ± 2.53 | <0.001* |
| Influence on daily activities | 8.50 ± 1.63 | 6.62 ± 2.05 | <0.001* |
| Satisfaction | 8.79 ± 1.39 | 6.97 ± 2.08 | <0.001* |
| PEG compliance rate | 162 (98.2) | 126 (93.3) | 0.033 |
| Cecal intubation rate | 164 (99.4) | 131 (97.0) | 0.178 |
| Cecal intubation time, minutes | 6.62 ± 4.59 | 6.30 ± 5.19 | 0.571 |
| Withdrawal time, minutes | 8.70 ± 3.08 | 8.40 ± 3.64 | 0.444 |
| Adenoma detection rate | 57 (34.5) | 29 (21.5) | 0.014 |
LRD, low-residue diet; BBPS, the Boston bowel preparation scale.
*
The p-value was calculated by the Wilcoxon–Mann–Whitney test.