Table 2: Follow-up at 16 and 20 weeks.
| PEG | Lactulose | p-value | ||||
| 16w | 20w | 16w | 20w | 16w | 20w | |
| Number of defecation/week (n ± SD) | 5.46 ± 0.9 | 4.46 ± 0.5 | 4.29 ± 1.1 | 3.58 ± 0.9 | 0.002 | 0.003 |
| Hard stool (%) | 5% | 0% | 22.7% | 17.6% | 0.03 | 0.08 |
| Painful defecation (%) | 0% | 0% | 22.7% | 17.6% | --- | --- |
| Improvement in encopresis (%) | 30% | 40% | 4.5% | 5.8% | 0.01 | 0.004 |