Discriminant validity of the DDL in comparing low frequency (⩽2 times per week; group 1) and high frequency (>2 times per week; group 2) encopresis
| Domains | Domain score Group 1 | Domain score Group 2 | p value | Mean difference (95% CI) |
|---|---|---|---|---|
| Independent Student’s t test used to compare mean domain scores between groups. | ||||
| Constipation related | 10.13 | 10.08 | 0.95 | 0.05 (−1.7 to 1.8) |
| Emotional functioning | 25.73 | 26.75 | 0.69 | 1.02 (−6.2 to 4.2) |
| Social functioning | 22.60 | 26.50 | 0.08 | 3.90 (−8.3 to 0.5) |
| Treatment/interventions | 22.27 | 28.67 | 0.02 | 6.40 (−11.8 to −1.0) |
| Total instrument | 87.00 | 97.92 | 0.09 | 10.92 (−23.8 to 2.0) |