Table 1.
Sample characteristics
| ALL SUBJECTS | WOMEN | MEN | |
|---|---|---|---|
| Age (years) | 20.1 (0.3) | 19.9 (0.4) | 20.4 (0.4) |
| BMI (kg/m2) | 23.1 (0.5) | 22.6 (0.6) | 23.8 (0.7) |
| Education (years) | 14.4 (0.2) | 14.1 (0.3) | 14.8 (0.3) |
| Exercise (hours/week) | 6.0 (0.7) | 5.1 (0.9) | 7.1 (1.0) |
| Average Sleep (hours/night) | 7.5 (0.1) | 7.5 (0.2) | 7.5 (0.2) |
| Ethnicity (% of Caucasian) | 92.1 | 95.2 | 88.2 |
| Tobacco Use (%) | 5.3 | 0 | 11.8 |
| Supplement Use (%) | 23.7 | 23.8 | 23.5 |
| Vegetarian (%) | 2.6 | 4.8 | 0 |
Note. Entries show mean (standard error) or percentage of the study sample; BMI: body mass index.