Table 1.
Participant demographic and clinical characteristics overall and by MCI progressor status.
| All (N = 250) | MCI Progressors (N = 23) | Non-Progressors (N = 227) | P Value | |
|---|---|---|---|---|
| Baseline age, M (SD) | 73.55 (6.0) | 76.17 (6.1) | 73.28 (5.94) | 0.04 |
| Years at diagnosis, M (SD) | – | 3.96 (1.89) | – | – |
| Total years of follow-up, M (SD) | 5.22 (1.66) | 5.52 (1.73) | 5.19 (1.66) | 0.39 |
| Education (years), M (SD) | 15.80 (3.07) | 15.74 (3.14) | 15.81 (3.07) | 0.92 |
| Sex, no. of males (%) | 105 (42) | 8 (34.8) | 97 (42.7) | 0.61 |
| MMSE, M (SD) | 28.98 (1.11) | 28.39 (1.53) | 29.04 (1.05) | 0.06 |
| APOE genotype, no. of ε4 carriers (%) | 68 (27.9)+ | 10 (43.5) | 58 (26.2)++ | 0.13 |
APOE = Apolipoprotein E; MCI = mild cognitive impairment; MMSE = Mini Mental State Exam. +APOE data were only available for 244 of 250 participants. ++APOE data were only available for 221 of 227 participants. The p values represent group differences between MCI progressors and non-progressors.