Research Article
Construction of a Prediction Model for the Mortality of Elderly Patients with Diabetic Nephropathy
Table 6
The predictive value of the model in different subgroups.
| Subgroup | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | AUC (95% CI) | Accuracy (95% CI) |
| Gender | | | | | | | Male | 0.90 (0.80–0.99) | 0.39 (0.25–0.52) | 0.54 (0.42–0.66) | 0.83 (0.67–0.98) | 0.66 (0.55–0.78) | 0.61 (0.51–0.72) | Female | 0.91 (0.79–1.00) | 0.56 (0.41–0.71) | 0.51 (0.36–0.67) | 0.92 (0.82–1.00) | 0.78 (0.65–0.91) | 0.68 (0.56–0.79) |
| Age | | | | | | | >75 years | 0.88 (0.75–1.00) | 0.36 (0.22–0.50) | 0.43 (0.30–0.57) | 0.84 (0.68–1.00) | 0.65 (0.52–0.78) | 0.54 (0.43–0.66) | ≤75 years | 0.92 (0.83–1.00) | 0.57 (0.43–0.72) | 0.62 (0.49–0.75) | 0.90 (0.79–1.00) | 0.78 (0.68–0.88) | 0.72 (0.63–0.82) |
| CKD | | | | | | | Yes | 0.90 (0.80–1.00) | 0.51 (0.39–0.63) | 0.47 (0.34–0.59) | 0.92 (0.83–1.00) | 0.74 (0.64–0.84) | 0.64 (0.54–0.73) | No | 0.90 (0.79–1.00) | 0.37 (0.19–0.55) | 0.61 (0.47–0.76) | 0.77 (0.54–1.00) | 0.67 (0.52–0.82) | 0.65 (0.53–0.77) |
| CVD | | | | | | | Yes | 0.90 (0.82–0.98) | 0.46 (0.34–0.58) | 0.57 (0.46–0.67) | 0.86 (0.75–0.97) | 0.71 (0.61–0.80) | 0.66 (0.57–0.74) | No | 0.89 (0.68–1.00) | 0.48 (0.28–0.68) | 0.38 (0.17–0.59) | 0.92 (0.78–1.00) | 0.71 (0.50–0.92) | 0.59 (0.42–0.75) |
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CI: confidence interval, AUC: area under the curve, NPV: negative predictive value, PPV: positive predictive value, CKD: chronic kidney disease, CVD: cardiovascular diseases.
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