Table 4.
Comparisons of Participant Baseline Characteristics Between Subjects with Normal Cognition Who Were Followed to the 2007 Evaluation (n = 934) and Subjects Who Were Lost to Follow-Up Before 2007 and Had Normal Cognitive Function at Their Last Evaluation (n = 655)
| Characteristic | Evaluated in 2007 (n = 934) | Lost Before 2007 (n = 655) | P-Value |
|---|---|---|---|
| Follow-up, years, mean ± SD | 6.5 ± 2.8 | 4.3 ± 2.5 | <.001 |
| Age, mean ± SD | 81.6 ± 4.7 | 79.2 ± 5.6 | <.001 |
| Female, n (%) | 682 (73.0) | 411 (62.8) | <.001 |
| Education, years, mean ± SD | 12.0 ± 2.4 | 11.0 ± 2.7 | <.001 |
| Body mass index, mean ± SD | |||
| All subjects | 29.8 ± 5.5 | 28.3 ± 5.9 | <.001 |
| Women | 30.3 ± 5.7 | 29.1 ± 6.3 | .002 |
| Men | 28.6 ± 4.6 | 27.0 ± 4.7 | <.001 |
| Drink alcohol, n (%) | .06 | ||
| Never | 337 (36.2) | 219 (33.4) | |
| Current | 219 (23.5) | 133 (20.3) | |
| Past | 376 (40.3) | 303 (46.3) | |
| Smoker, n (%) | <.001 | ||
| Never | 414 (44.6) | 203 (31.0) | |
| Current | 135 (14.6) | 149 (22.8) | |
| Past | 379 (40.8) | 303 (46.3) | |
| History of, n (%) | |||
| Cancer | 144 (15.6) | 112 (17.2) | .39 |
| Hypertension | 682 (77.9) | 466 (73.4) | .04 |
| Diabetes mellitus | 239 (25.7) | 185 (28.3) | .24 |
| Heart attack | 165 (17.7) | 167 (25.5) | <.001 |
| Stroke | 93 (10.0) | 77(12.0) | .25 |
| Depression | 80 (8.6) | 53 (8.1) | .72 |
SD = standard deviation.