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| Subject characteristic | All (n = 26) | Male (n = 14) | Female (n = 12) | p-value |
|---|---|---|---|---|
| Ages (years) | 30.6 ± 10.3 | 31.1 ± 11.2 | 29.9 ± 9.5 | 0.78* |
| Race (EA/AA/Others) | 21/3/2 | 12/1/1 | 9/2/1 | 0.74^ |
| Education (years) | 16.6 ± 3.2 | 16.5 ± 3.9 | 16.8 ± 1.9 | 0.77* |
Note: values are mean ± S.D.; p-values are from statistic comparison between males and females
*two-tailed two-sample t test
^chi-square test
