Table 2.
Receiver Operator Characteristic (ROC) Results for the Classification of Prefrailty and Frailty on the Mod-FP Compared With the FFP
| Sample | ROC AUC(95% CI) | Cut point (Mod-FP Score) | Sensitivity | Specificity | Correctly Classified |
|---|---|---|---|---|---|
| Everyone | 0.934 (0.905−0.963) | ≥1 | 100% | 57% | 60% |
| ≥2 | 89% | 83% | 84% | ||
| ≥3 | 62% | 97% | 94% | ||
| ≥4 | 27% | 100% | 94% | ||
| PWH <55 years | 0.962 (0.935–0.990) | ≥1 | 100% | 56% | 60% |
| ≥2 | 96% | 84% | 85% | ||
| ≥3 | 69% | 99% | 96% | ||
| ≥4 | 31% | 100% | 93% | ||
| PWH ≥55 years | 0.898 (0.843–0.954) | ≥1 | 100% | 58% | 61% |
| ≥2 | 79% | 82% | 82% | ||
| ≥3 | 54% | 95% | 91% | ||
| ≥4 | 21% | 100% | 94% | ||
| Men | 0.929 (0.894–0.963) | ≥1 | 100% | 59% | 62% |
| ≥2 | 85% | 85% | 85% | ||
| ≥3 | 59% | 97% | 94% | ||
| ≥4 | 18% | 100% | 93% | ||
| Women | 0.959 (0.918–0.999) | ≥1 | 100% | 48% | 53% |
| ≥2 | 100% | 76% | 79% | ||
| ≥3 | 73% | 96% | 94% | ||
| ≥4 | 55% | 100% | 96% | ||
| Black PWH | 0.943 (0.906–0.981) | ≥1 | 100% | 58% | 62% |
| ≥2 | 91% | 83% | 84% | ||
| ≥3 | 61% | 98% | 95% | ||
| ≥4 | 35% | 100% | 94% | ||
| White PWH | 0.920 (0.867–0.972) | ≥1 | 100% | 55% | 59% |
| ≥2 | 84% | 83% | 83% | ||
| ≥3 | 63% | 96% | 93% | ||
| ≥4 | 16% | 100% | 93% | ||
| Everyone—prefrail classification | 0.858 (0.828–0.888) | ≥1 | 77% | 92% | 84% |
| ≥2 | 33% | 100% | 65% | ||
| ≥3 | 6% | 100% | 52% |
Note. AUC = area under curve; FFP = Fried’s frailty phenotype; Mod-FP = modified Fried phenotype; PWH = people with HIV.