Table 5.
Intraclass correlation coefficient of the QLQ-NMIBC24 subscales for 134 NMIBC patients participating in the test–retest analysis of BlaZIB
| Scale | Assessment of stability | Number of stable patientsb | ICC | (95% CI) | SEMa |
|---|---|---|---|---|---|
| Urinary symptoms | Urinary function | 80 | 0.70 | (0.57–0.80) | 10.0 |
| Malaise | Total function | 78 | 0.07 | (− 0.15 to 0.29) | 12.9 |
| Future worries | Total function | 60 | 0.78 | (0.66–0.86) | 8.4 |
| Bloating and flatulence | Bowel function | 56 | 0.65 | (0.46–0.78) | 12.4 |
| Sexual functioning | Sexual function | 58 | 0.82 | (0.72–0.89) | 8.9 |
| Male sexual problems | Sexual function | 49 | 0.74 | (0.57–0.84) | 18.3 |
| Intravesical treatment issues | Total function | 76 | 0.38 | (0.17–0.56) | 11.8 |
| Sexual intimacy | Sexual function | 22 | 0.73 | (0.46–0.88) | 11.4 |
| Risk of contaminating partner | Sexual function | 20 | 0.40 | (− 0.04 to 0.71) | 15.2 |
| Sexual enjoyment | Sexual function | 20 | 0.71 | (0.40–0.87) | 14.9 |
| Female sexual problems | Sexual function | 0 |
ICC, intraclass correlation coefficient, CI confidence interval, SEM standard error of measure
aUsing the Restricted Maximum Likelihood (REML) approach
bPatients who (self-reported) remained the same with respect to the specific assessment of stability (i.e. urinary, bowel, sexual or total function) between the T12mo and T12mo + 2wk questionnaire