Table 3. Discriminant indices of the Montreal Cognitive Assessment and Mini-Mental State Examination in detecting cognitive impairment.
Cuff-off value | Sen (95% CI) | Spec (95% CI) | PPV (95% CI) | NPV (95% CI) | Diagnostic Accuracy | |
At 2–4 weeks | ||||||
MoCA | 17/18 | 75(43–95) | 95(87–99) | 75(41–95) | 95(87–99) | 92% |
MMSE | 23/24 | 75(43–95) | 90(80–96) | 60(32–84) | 95(86–99) | 88% |
At 1 year | ||||||
MoCA | 21/22 | 100(74–100) | 75(63–85) | 41(24–61) | 100(93–100) | 85% |
MMSE | 23/24 | 58(28–85) | 84(73–92) | 39(17–64) | 92(82–97) | 80% |
Sen: Sensitivity; Spec: Specificity; PPV: Positive Predictive Value; NPV: Negative Predictive Value.
MoCA: Montreal Cognitive Assessment.
MMSE: Mini-Mental State Examination.