Table 5.
Cut-off scores, sensitivities, specificities and AUCs (95% CI) of the MoCA and MMSE between normal cognition, MCI and dementia by different educational levels within each age group.
| Variable | Normal | MCI | Dementia | Normal vs. MCI | Normal vs. Dementia | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensitivity | Specificity | Cut-off | AUC (95%CI) | Sensitivity | Specificity | Cut-off | AUC (95%CI) | |||||
| Age ≤ 75 years and | N = 232 | N = 114 | N = 26 | |||||||||
| education ≤ 6 years | MMSE | 25.75 ± 3.58 | 23.19 ± 4.68 | 16.33 ± 7.23 | 75.00 | 52.17 | 26.5 | 0.67 (0.61:0.73) | 87.50 | 78.26 | 23.5 | 0.90 (0.85:0.96) |
| MoCA | 20.98 ± 5.10 | 16.91 ± 4.68 | 10.62 ± 5.73 | 72.48 | 68.53 | 19.5 | 0.74 (0.68:0.79)** | 92.31 | 76.29 | 18.5 | 0.91 (0.87:0.96) | |
| Age > 75 years and | N = 191 | N = 184 | N = 113 | |||||||||
| education ≤ 6 years | MMSE | 23.33 ± 4.53 | 18.83 ± 4.45 | 11.95 ± 6.68 | 81.14 | 61.90 | 22.5 | 0.77 (0.72:0.82)* | 84.68 | 83.60 | 19.5 | 0.92 (0.89:0.95) |
| MoCA | 17.66 ± 6.15 | 12.91 ± 4.36 | 7.36 ± 4.77 | 75.54 | 62.30 | 15.5 | 0.73 (0.68:0.78) | 77.88 | 89.53 | 10.5 | 0.90 (0.87:0.94) | |
| Age ≤ 75 years and | N = 981 | N = 183 | N = 70 | |||||||||
| education > 6 years | MMSE | 28.25 ± 2.01 | 25.04 ± 3.46 | 13.72 ± 8.61 | 74.47 | 57.49 | 28.5 | 0.71 (0.65:0.75) | 88.52 | 97.03 | 23.5 | 0.95 (0.90:0.99) |
| MoCA | 25.79 ± 3.48 | 20.68 ± 4.16 | 9.14 ± 6.70 | 81.42 | 74.52 | 24.5 | 0.84 (0.81:0.87)** | 90.00 | 97.35 | 18.5 | 0.97 (0.95:0.99) | |
| Age > 75 years and | N = 324 | N = 113 | N = 38 | |||||||||
| education > 6 years | MMSE | 27.01 ± 3.30 | 25.95 ± 3.68 | 14.10 ± 8.36 | 64.91 | 70.23 | 26.5 | 0.69 (0.62:0.77) | 90.00 | 88.84 | 23.5 | 0.94 (0.89:0.99) |
| MoCA | 23.49 ± 4.80 | 20.68 ± 4.16 | 10.76 ± 6.45 | 86.37 | 53.87 | 24.5 | 0.72 (0.67:0.77) | 84.21 | 89.47 | 20.5 | 0.94 (0.91:0.97) | |
MMSE, Mini-Mental State Examination; MoCA, Mini-Mental State Montreal Cognitive Assessment; MCI, mild cognitive impairment; AUC, area under the curve; CI, confidence interval. Bold indicates best performed for that indication; N = people who had complete data for all task.
p < 0.005,
p < 0.001.