Table 5.
Performance of screening tests in predicting severe cognitive impairment
| Screening Test | Cognitive Battery (Gold Standard) | Na | nb | AUC (95% CI) |
|---|---|---|---|---|
| MoCA | Complete battery | 148 | 43 | 0.81 (0.73 to 0.89) |
| Digit symbol substitution | Battery minus Digit Symbol | 144 | 36 | 0.78 (0.68 to 0.88) |
| Trail making part B (continuous) | Battery minus Trails B | 141 | 19 | 0.73 (0.59 to 0.87) |
| Trails making part B noncompleters | Battery minus Trails B | 141 | 19 | 0.76 (0.66 to 0.86) |
| Mini-Cog | Complete battery | 148 | 43 | 0.73 (0.65 to 0.81) |
| 3MS | Complete battery | 148 | 44 | 0.72 (0.61 to 0.82) |
| MMSE | Complete battery | 148 | 44 | 0.69 (0.58 to 0.80) |
Complete battery: Wechsler Memory Scale–III Word List Learning subtest,12 the Wechsler Adult Intelligence Scale–III Block Design12 and Digit Symbol–Coding subtests,12 Digit Span (forward and backward) test, and Trails A and B.13
a
N=total number of participants with sufficient data.
b
n=number of participants with severe impairment.