Table 2 Characteristics of EPIC domain-specific summary and subscales scores (N = 215; T1)
HRQoL domain | Number of Items | N | mean score (SD) | range (min-max) | Floor effects (%) | Ceiling effects (%) | Cronbach’s α | Cronbach’s α in the original version (Wei et al. 2000) |
|---|---|---|---|---|---|---|---|---|
HRQoL Domain Summary Scores | ||||||||
Urinary | 12 | 167 | 86.74 (13.61) | 33.33–100 | 0 | 9.30 | 0.88 | 0.88 |
Bowel | 14 | 165 | 91.70 (9.93) | 30.36–100 | 0 | 15.35 | 0.61 | 0.92 |
Sexual | 13 | 177 | 43.88 (21.98) | 0.0–94.23 | 0.93 | 0 | 0.89 | 0.93 |
Hormonal | 11 | 162 | 87.67 (12.49) | 47.50–100 | 0 | 20.93 | 0.77 | 0.82 |
Domain-Specific HRQoL Subscales | ||||||||
Urinary subscales | ||||||||
Function | 5 | 192 | 94.39 (11.02) | 40.00–100 | 0 | 60.47 | 0.63 | 0.69 |
Bother | 7 | 162 | 82.03 (17.33) | 17.86–100 | 0 | 10.70 | 0.85 | 0.85 |
Irritation/obstruction | 7 | 163 | 85.42 (14.42) | 17.86–100 | 0 | 11.16 | 0.79 | 0.81 |
Incontinence | 4 | 167 | 91.44 (17.22) | 22.75–100 | 0 | 53.93 | 0.91 | 0.89 |
Bowel subscales | ||||||||
Function | 7 | 190 | 92.46 (9.07) | 39.29–100 | 0 | 23.72 | 0.53 | 0.75 |
Bother | 7 | 165 | 90.72 (13.36) | 21.43–100 | 0 | 30.70 | 0.83 | 0.90 |
Sexual subscales | ||||||||
Function | 9 | 174 | 40.76 (28.96) | 0.00–91.67 | 8.84 | 0 | 0.96 | 0.92 |
Bother | 4 | 166 | 53.61 (34.14) | 0.00–100 | 7.91 | 14.88 | 0.94 | 0.84 |
Hormonal subscales | ||||||||
Function | 5 | 186 | 86.99 (13.18) | 25.00–100 | 0 | 26.51 | 0.76 | 0.51 |
Bother | 6 | 163 | 88.32 (13.59) | 45.83–100 | 0 | 25.58 | 0.63 | 0.73 |