TABLE 1.
Included sample (n = 370) | Excluded sample (n = 379) | P-value | |
---|---|---|---|
Age, years | 69.28 ± 3.25 | 70.23 ± 3.48 | <.001* |
Sex (M:F) | 220:150 | 212:167 | .329 |
Income category | 12.21 ± 2.83 | 10.96 ± 3.13 | <.001* |
Education, years | 11.87 ± 3.91 | 10.19 ± 4.72 | <.001* |
Ethnicity (Mexican American:European American) | 182:188 | 175:204 | .065 |
Body mass index, kg/m2 | 28.28 ± 4.90 | 28.47 ± 5.61 | .620 |
Diabetes, (%) | 16.80 | 31.00 | <.001* |
Hypertension, (%) | 47.84 | 53.89 | .099 |
Coronary artery disease (%) | 17.84 | 24.01 | .037* |
MMSE total score | 27.03 ± 2.76 | 25.03 ± 4.13 | <.001* |
Gait speed, m/sec | 0.92 ± 0.20 | 0.79 ± 400.28 | <.001* |
Note: Group differences were analyzed using independent t-tests for continuous measures and the chi-squared statistic for categorical measures. All values represent mean ± SD unless otherwise noted. Income Category: 11 = monthly household income of $1250–1499 and 13 = monthly household income of $2000 to $2499.
Abbreviation: MMSE, mini-mental status examination.