| | Evaluation index | Fixed effects model (OR (95% CI)) | Random effects model (OR (95% CI)) |
| | Total effective rate | 4.96 (2.81, 8.76) | 4.90 (2.76, 8.71) | | Incidence of constipation | 0.24 (0.14, 0.39) | 0.24 (0.14, 0.39) | | Time of first bowel movement on the first day | 0.77 (0.39, 1.49) | 0.77 (0.39, 1.49) | | Time of first bowel movement on the second day | 2.43 (1.42, 4.17) | 2.41 (1.22, 4.77) | | Time of first bowel movement on the third day | 2.99 (1.73, 5.17) | 3.00 (1.74, 5.17) | | Use of laxatives | 0.18 (0.11, 0.30) | 0.16 (0.05, 0.58) | | Defecation difficulty | 0.45 (0.29, 0.71) | 0.45 (0.29, 0.73) | | Prolonged defecation | 0.47 (0.29, 0.73) | 0.47 (0.29, 0.73) | | Dry stool | 0.38 (0.24, 0.59) | 0.38 (0.24, 0.59) | | Endless defecation | 0.44 (0.28, 0.69) | 0.44 (0.28, 0.69) |
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