Table 2.
IBS-QOL | Score (mean ± SD) (Time 1) | Cronbach's alpha (Time 1) | Intraclass correlation coefficient (ICC) |
Overall scale | 70.3 ± 19.9 | 0.96 | 0.92a |
Subscales (number of items) | |||
Dysphoria (8) | 61.5 ± 27.1 | 0.94 | 0.88a |
Interference with activity (7) | 66.4 ± 24.7 | 0.86 | 0.94a |
Body image (4) | 82.9 ± 18.0 | 0.56 | 0.90a |
Health worry (3) | 76.0 ± 18.6 | 0.48 | 0.81a |
Food avoidance (3) | 59.5 ± 28.2 | 0.83 | 0.92a |
Social reaction (4) | 78.2 ± 19.2 | 0.76 | 0.85a |
Sexual concerns (2) | 84.7 ± 19.6 | 0.61 | 0.80a |
Relationships (3) | 71.3 ± 25.6 | 0.74 | 0.87a |
ap < 0.001; Pearson's correlation coefficient.