Table 1.
General characteristics of study participants by gender and ethnicity.
| Variables Assessed | Females | Males | African-Americans | Whites | P-Value | |
|---|---|---|---|---|---|---|
| Gender | Ethnicity | |||||
| Total | 299 | 243 | 243 | 299 | 542 | 542 |
| Age | 16.13 ± 1.21 | 16.06 ± 1.21 | 16.13 ± 1.23 | 16.06 ± 1.21 | 0.65 | 0.53 |
| Height (m) | 1.63 ± 5.97 | 1.74 ± 7.58 | 1.68 ± 9.03 | 1.69 ± 8.54 | < 0.01 | 0.10 |
| Weight (kg) | 61.40 ± 14.09 | 68.90 ± 14.61 | 67.41 ± 15.77 | 62.68 ± 13.63 | < 0.01 | < 0.01 |
| BMI (kg/m^2) | 23.08 ± 5.21 | 22.54 ± 4.17 | 24.01 ± 5.38 | 21.89 ± 3.98 | 0.19 | < 0.01 |
| Vigorous Physical Activity (minutes/day) | 1.96 ± 2.95 | 5.43 ± 7.38 | 3.77 ± 6.43 | 3.34 ± 5.03 | < 0.01 | 0.41 |
| Tanner Stage | 4.38 ± 0.69 | 4.31 ± 0.78 | 4.43 ± 0.70 | 4.29 ± 0.75 | 0.26 | < 0.02 |
| C5 Methylation (%5 mC) | 0.46 ± 0.22 | 0.42 ± 0.24 | 0.42 ± 0.23 | 0.45 ± 0.23 | < 0.01 | 0.30 |
| Telomere Length (T/S ratio) | 1.31 ± 0.21 | 1.28 ± 0.24 | 1.32 ± 0.21 | 1.27 ± 0.23 | 0.19 | < 0.01 |