Table 3.
Adverse events of bowel preparation
| 3 L split-dose group (n = 318) | 2 L group (n = 321) | P value* | |
|---|---|---|---|
| Dizzy, n (%) | 27 (8.5) | 29 (9.0) | 0.876 |
| Mild | 27 (100) | 27 (93.1) | |
| Moderate | 0 | 2 (6.9) | |
| Severe | 0 | 0 | |
| Nausea, n (%) | 98 (30.8) | 62 (19.3) | 0.001 |
| Mild | 78 (79.6) | 56 (90.3) | |
| Moderate | 16 (16.3) | 6 (9.7) | |
| Severe | 4 (4.1) | 0 | |
| Vomiting, n (%) | 47 (14.8) | 39 (12.1) | 0.330 |
| Mild | 38 (80.9) | 33 (84.6) | |
| Moderate | 6 (12.8) | 5 (12.8) | |
| Severe | 3 (6.4) | 1(2.6) | |
| Abdominal pain, n (%) | 52 (16.4) | 37 (11.5) | 0.078 |
| Mild | 48 (92.3) | 33 (89.2) | |
| Moderate | 2 (3.8) | 4 (10.8) | |
| Severe | 2 (3.8) | 0 | |
| Abdominal distension, n (%) | 97(30.5) | 77 (24.0) | 0.064 |
| Mild | 76(78.4) | 64 (83.1) | |
| Moderate | 19(19.6) | 12 (15.6) | |
| Severe | 2(2.1) | 1 (1.3) | |
| Weak, n (%) | 37(11.6) | 37 (11.5) | 0.966 |
| Mild | 34(91.9) | 34 (91.9) | |
| Moderate | 2(5.4) | 2 (5.4) | |
| Severe | 1(2.7) | 1(2.7) | |
| Anal pendant expansion, n (%) | 58(16.8) | 45(12.9) | 0.147 |
| Mild | 50(86.2) | 41(91.1) | |
| Moderate | 6(10.3) | 4(8.9) | |
| Severe | 2(3.4) | 0 |
*P-value was calculated using the χ2-test or Fisher’s exact test for categorical data