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Operating characteristics of various CAS cutpoints for diagnosing functional impairment.
| CAS total score | Sensitivity (%) | Specificity (%) | Youdon Index |
|---|---|---|---|
| 4 | 88 | 68 | 56 |
| 5 | 84 | 74 | 58 |
| 6 | 81 | 79 | 60 |
| 7 | 79 | 83 | 62 |
| 8 | 77 | 87 | 64 |
| 9 | 76 | 90 | 66 |
| 10 | 72 | 92 | 64 |
| 11 | 57 | 93 | 50 |
Note. N = 398. Area under the curve value is .88.
