Table 4.
Results of the multi-variable logistic regression analysis.
| Predictors | Coeff ± dev.std. | p-value | OR | CI (95%) |
|---|---|---|---|---|
| FREQUENCY—Frequency of urine loss | ||||
| Endpoint: ICIQ3 >3, N = 52/148 (35%), excluded: ICIQ3 >3 at baseline | ||||
| Baseline score | 0.655 ± 0.174 | <0.001 | 1.93 | 1.38–2.74 |
| EQD2(0.8) [Gy] | 0.075 ± 0.033 | 0.024 | 1.08 | 1.01–1.15 |
| Intercept | −6.964 | |||
| H&L = 0.78 | Slope = 1.06 | R2 = 0.82 | Brier score = 0.198 | |
| (optimism = 0.01) | ||||
| AMOUNT—Amount of Urine Loss | ||||
| Endpoint: ICIQ4 >2, N = 40/188 (21%), excluded: ICIQ4 >2 at baseline | ||||
| Baseline score | 0.648 ± 0.237 | 0.006 | 1.91 | 1.24–3.19 |
| Intercept | −2.269 | |||
| H&L = 1.00 | Slope = 1.00 | R2 = 1.00 | Brier score = 0.160 | |
| (optimism = 0.005) | ||||
| OBJECTIVE—Objective | ||||
| Endpoint: ICIQ3+4 >5, N = 52/148 (35%), excluded: ICIQ3+4 >5 at baseline | ||||
| Baseline score | 0.371 ± 0.099 | <0.001 | 1.45 | 1.20–1.77 |
| EQD2(0.8) [Gy] | 0.077 ± 0.033 | 0.022 | 1.08 | 1.01–1.16 |
| Intercept | −7.220 | |||
| H&L = 0.97 | Slope = 1.11 | R2 = 0.92 | Brier score = 0.199 | |
| (optimism = 0.009) | ||||
The endpoints are related to frequency, amount and objective component of urinary incontinence, as reported in ICIQ-SF.
H&L, Hosmer and Lemeshow test; ICIQ-SF, International Consultation on Incontinence Modular Questionnaire Short Form.