Table 1.
Demographic characteristics
| Group | NC | NF | Mild+Major NCD | Mild NCD |
|---|---|---|---|---|
| n | 283 | 49 | 447 | 159 |
| Prevalence in MC sample % | – | 9.9 | 90.1 | 32.1 |
| Age mean (SD) | 73.8 (5.2) | 73.1 (5.6) | 78.3 (5.9)* | 76.0 (6.0)* |
| Age range | 65–91 | 65–88 | 65–91 | 65–91 |
| Education mean (SD) | 13.6 (2.9) | 13.8 (2.7) | 12.2 (3.0)* | 12.4 (3.1)* |
| Education | 7–20 | 8–20 | 7–20 | 7–20 |
| Female % | 54.8 | 40.8 | 55.7 | 53.5 |
| MMSE score | 29.2 (0.9) | 29.0 (1.0) | 25.1 (3.5)* | 27.2 (2.2)* |
| MoCA score | 26.5 (2.4) | 26.5 (2.2) | 19.1 (4.5)* | 22.0 (3.6)* |
| MoCA score range | 16–30 | 22–30 | 2–30 | 12–30 |
| MoCAz-score | 0.0 (1.0) | 0.1 (1.0) | − 2.1 (1.0)* | − 1.5 (1.0)* |
| MoCAz-score range | − 3.0–2.4 | − 1.7–1.9 | − 4.3–1.5 | − 3.7–1.5 |
Data are presented as mean (SD). There were no differences between NC and NF. Mild NCD is a subgroup of Mild+Major NCD. NF is compared to Mild+Major NCD and Mild NCD: *P < .001
Abbreviations: NC normal controls, NCD neurocognitive disorder, NF normal findings, MMSE Mini Mental State Examination, MoCA Montreal Cognitive Assessment; MoCA z-score demographically corrected standard score [7]