| PEG+E/placebo | Placebo/PEG+E | Total | |
| Patients, n | 27 | 24 | 51 |
| Aged 2–6 years | 18 (67%) | 17 (71%) | 35 (69%) |
| Aged 7–11 years | 9 (33%) | 7 (29%) | 16 (31%) |
| Male:female ratio, n | 13:14 | 9:15 | 22:29 |
| (%) | (48%:52%) | (38%:63%) | (43%:57%) |
| Age (years) | |||
| Mean (SD) | 5.3 (2.4) | 5.5 (2.9) | 5.4 (2.6) |
| Range | 2–9 | 2–11 | 2–11 |
| Previous laxative use, n | 25 (93%) | 22 (92%) | 47 (92%) |