Research Article
Clinical Risk Factors for Gastroduodenal Ulcer in Romanian Low-Dose Aspirin Consumers
Table 4
Assessment of model performance.
| Performance indices | Final multivariable model |
| Global measures of goodness-of-fit | | Brier coefficient | 0,15 | (Nagelkerke) | 0,43 | Hosmer-Lemeshow goodness-of-fit test | = 5,26, df = 8, = 0,73 | Comparison of nested models tested | | Likelihood ratio test (full model versus constant model) | = 50,98, df = 15, < 0,001 | Likelihood ratio test (full model versus reduced model) | ,56, df = 9, = 0,307 | Discrimination | | stat (95% CI: lower-upper limit) | 0,85 (95% CI: 0,79–0,92) | Somers’ index | 0,71 | Discrimination slope | 1,00 |
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Note. Full model: model with all potential candidates from univariate regression analysis. Constant model: null model. Reduced model: final model.
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