Table 1.
Characteristics of study participants
| Participants characteristics | Case (n = 52) | Control (n = 153) | P valuea |
| Age, yr, mean (SD) | 62.2 (13.5) | 53.7 (11.8) | 9.0e-05 |
| Female, % | 90.4 | 75.2 | 0.019 |
| White, % | 96.2 | 85.6 | 0.53 |
| Education, % | 0.029 | ||
| Postgraduate degree | 28.8 | 23.9 | |
| College degree | 40.4 | 19.4 | |
| Some college | 23.1 | 35.1 | |
| GED | 1.9 | 1.5 | |
| High school degree | 5.8 | 15.7 | |
| Some high school | 0 | 3.0 | |
| Eighth grade or less | 0 Missing = 0 |
1.5 Missing = 19 |
|
| BMI, mean (SD) | 25.2 (6.2) Missing = 2 |
29.5 (6.9) Missing = 5 |
7.5e-05 |
BMI, body mass index; GED, general educational development.
a
For age and BMI, P value derived from the Wilcoxon rank sum test. For sex, race, and education, P value derived from the Fisher's exact test.