Table 3.
Characteristics of predictive models.
| Predictive model | Sensitivity | Specificity | PPV | NPV | AUROC |
|---|---|---|---|---|---|
| Logistic regression | |||||
| Any VURa | 86.3% | 24.7% | 53.7% | 64.1% | 0.5735 |
| VUR grade >IIb | 5.1% | 99.1% | 70.6% | 71.9% | 0.6018 |
| VUR grade >IIIc | 6.0% | 99.9% | 77.8% | 93.2% | 0.6742 |
| Neural networksd | |||||
| Any VUR | 64.2% | 59.6% | 61.6% | 62.2% | 0.6852 |
| VUR grade >II | 17.8% | 97.8% | 76.4% | 74.5% | 0.6726 |
| VUR grade >III | 31.6% | 99.8% | 92.5% | 95.0% | 0.7863 |
Logistic model with urothelial thickening, duplication, trabeculation and kidney stones (adjusted for sex, circumcision status in boys and febrile UTI)
Logistic model with any renal bladder ultrasound abnormality, urothelial thickening, duplication, kidney stones (adjusted for age, sex and febrile UTI)
Logistic model with any renal bladder ultrasound abnormality, ureter dilation, urothelial thickening, debris, first or recurrent UTI
All individual RBUS abnormalities, sex, age, circumcision status in boys, febrile UTI, first (vs recurrent) UTI