Table 3 Descriptive statistics of the sample according to MCI diagnostic consistency considering conventional or neuropsychological criteria.
Conventional criteria consistency | |||||
|---|---|---|---|---|---|
Cognitively normal | Reverters | Consistent | Uncertain | p-value | |
n = 488 | n = 192 | n = 133 | n = 145 | ||
Age at baseline | 71.97 (1.25)c | 72.18 (1.23)bc | 72.31 (1.29)a | 72.17 (1.33)ab | 0.019 |
Female | 238 (48.8%) | 100 (52.1%) | 75 (56.4%) | 81 (55.9%) | 0.277 |
Education | 7.00 (3.17) | 7.66 (3.76) | 7.11 (3.03) | 6.74 (3.22) | 0.054 |
Incident dementia | 47 (9.6%)a | 20 (10.4%)a | 43 (32.3%)b | 38 (26.2%)b | < 0.001 |
Time to dementia | 90.09 (40.56)ab | 108.40 (32.44)a | 109.63 (40.21)a | 77.92 (46.09)b | 0.004 |
Number of Assessment | 4.00 [2.00, 5.00]b | 5.00 [2.00, 5.00]a | 4.00 [2.00, 5.00]b | 4.00 [2.00, 5.00]b | < 0.001 |
Wave at first MCI diagnosis | / | 2.00 [1.00, 4.00]b | 2.00 [1.00, 4.00]b | 4.00 [1.00, 5.00]a | < 0.001 |
Number of MCI diagnosis | / | 2.00 [1.00, 4.00]b | 2.00 [2.00, 5.00]a | 1.00 [1.00, 1.00]c | < 0.001 |
Neuropsychological criteria consistency | |||||
|---|---|---|---|---|---|
Cognitively normal | Reverters | Consistent | Uncertain | p-value | |
n = 232 | n = 246 | n = 285 | n = 195 | ||
Age at baseline | 71.91 (1.19)c | 71.99 (1.24)bc | 72.28 (1.32)a | 72.13 (1.28)ab | 0.006 |
Female | 130 (56.0%) | 117 (47.6%) | 139 (48.8%) | 108 (55.4%) | 0.141 |
Education | 7.19 (3.29) | 7.24 (3.40) | 7.14 (3.09) | 6.80 (3.46) | 0.524 |
Incident dementia | 15 (6.5%)a | 9 (3.7%)a | 73 (25.6%)b | 51 (26.2%)b | < 0.001 |
Time to dementia | 119.07 (31.18)a | 106.33 (38.49)ab | 103.84 (38.49)a | 73.61 (45.27)b | < 0.001 |
Number of assessment | 4.00 [2.00, 5.00]b | 5.00 [2.00, 5.00]a | 4.00 [2.00, 5.00]b | 4.00 [2.00, 5.00]b | < 0.001 |
Wave at first MCI diagnosis | / | 1.00 [1.00, 4.00]b | 1.00 [1.00, 4.00]b | 3.00 [1.00, 5.00]a | < 0.001 |
Number of MCI diagnosis | / | 2.00 [1.00, 4.00]b | 3.00 [2.00, 5.00]a | 1.00 [1.00, 1.00]c | < 0.001 |
