Table 4.
Demographic information among individuals in ADNI dataset
| Variable | NC (n = 189) | MCI (n = 302) | AD (n = 56) | P |
|---|---|---|---|---|
| AGE * | 70.3 (66.9, 75.0) | 70.6 (64.8, 75.8) | 73.2 (68.3, 79.3) | 0.026 |
| PTGENDER $ | 0.054 | |||
| Male | 83 (43.9%) | 166 (55.0%) | 30 (53.6%) | |
| Female | 106 (56.1%) | 136 (45.0%) | 26 (46.4%) | |
| PTEDUCAT * | 18.0 (16.0, 18.0) | 16.0 (14.0, 18.0) | 16.0 (14.0, 18.0) | 0.005 |
| PTMARRY $ | 0.035 | |||
| Other | 138 (73.0%) | 236 (78.1%) | 50 (89.3%) | |
| Married | 51 (27.0%) | 66 (21.9%) | 6 (10.7%) |
* Median (P25, P75) expressed continuous variables, analysed using the Kruskal-Wallis H test. $ Categorical variables were expressed as percentage (%) and the χ2 test was employed