Table 2.
Group Characteristics at First NEO-PI-R Epoch
| MCI Transitioners | Nontransitioners |
P Value |
|
|---|---|---|---|
|
| |||
| n | 25 | 252 | |
|
| |||
| Age in years, mean (95% CI) | 65.5 (63.1, 67.9) | 62.7 (61.8, 63.6) | .06a |
|
| |||
| Female, n (%) | 13 (52.0%) | 175 (69.4%) | .07b |
|
| |||
| APOE e4 carriers, n (%) | 20 (80.0%) | 96 (38.31%) | <.001b |
|
| |||
| Non-Hispanic White, n (%) | 22 (88.0%) | 209 (82.9%) | .64b |
|
| |||
| Education years, mean (95% CI) | 16.4 (15.3, 17.5) | 16.0 (15.8, 16.3) | .46a |
|
| |||
| Inter-NEO Interval in months, mean (95% CI) | 83.8 (73.6, 93.9) | 78.5 (75.6, 81.3) | .28a |
|
| |||
| Number of NEO Administrations, n (%) | .24b | ||
| 2 | 15 (60.0%) | 177 (70.2%) | |
| 3 | 9 (36.0%) | 73 (29.0%) | |
| 4 | 1 (4.0%) | 2 (0.8%) | |
|
| |||
| Neuroticism Factor, mean (95% CI) | 41.9 (38.7, 45.1) | 42.6 (41.5, 43.7) | .68a |
|
| |||
| Extraversion Factor, mean (95% CI) | 50.8 (47.0, 54.6) | 49.0 (47.9, 50.1) | .34a |
|
| |||
| Openness Factor, mean (95% CI) | 53.1 (49.0, 57.1) | 52.3 (51.0, 53.5) | .70a |
|
| |||
| Agreeableness Factor. mean (95% CI) | 53.3 (49.6, 56.9) | 53.6 (52.6, 54.7) | .84a |
|
| |||
| Conscientiousness Factor, mean (95% CI) | 49.0 (45.5, 52.4) | 51.6 (50.5, 52.7) | .15a |
a
T-test;
b
Chi-squared test