Table 5 Receiver Operator Characteristic (ROC) curve statistics
From: Pre-frailty factors in community-dwelling 40–75 year olds: opportunities for successful ageing
Comparing not frail with pre-frail | Comparing pre-frail with frail | |
|---|---|---|
Factor 1 | ||
AUC | 0.64 | 0.60 |
95%CI | 0.60–0.68 | 0.53–0.66 |
p | < 0.01 | 0.33 |
Youden index | 0.23 | 0.12 |
threshold score | > 114 | > 213 |
Sens | 62.9 | 58.3 |
Spec | 59.8 | 64.8 |
Factor 3 | ||
AUC | 0.65 | |
95%CI | 0.59–0.70 | |
p | < 0.01 | |
Youden index | 0.37 | |
threshold score | > 68.3 | |
Sens | 75.0 | |
Sp | 61.7 | |
Factor 5 | ||
AUC | 0.63 | |
95%CI | 0.56–0.69 | |
p | 0.25 | |
Youden index | 016 | |
threshold score | > 37 | |
Sens | 33.3 | |
Spec | 92.2 | |
Factor 7 | ||
AUC | 0.55 | 0.61 |
95%CI | 0.52–0.58 | 0.55–0.67 |
p | < 0.05 | 0.17 |
Youden index | 0.07 | 0.16 |
threshold score | > 40 | > 40 |
Sens | 58.9 | 75.0 |
Spec | 48.2 | 41.0 |