Table 1 Demographics (n = 148).
Demographic | Supplement | Placebo | Total sample |
|---|---|---|---|
Female | 12% | 16% | 28% |
Average age | 30 | 30 | 30 |
Age SD | 5.2 | 5.4 | 5.3 |
Age range | 20–42 | 19–44 | 19–44 |
Education | |||
< 12 years | 3% | 3% | 6% |
12–16 years | 32% | 34% | 66% |
> 16 years | 11% | 16% | 28% |
Rank | |||
Airman First Class | 6% | 3% | 9% |
Staff Sergeant | 11% | 10% | 21% |
Technical Sergeant | 8% | 7% | 15% |
Major Sergeant | 1% | 4% | 5% |
Lieutenant | 8% | 11% | 20% |
Captain | 9% | 13% | 22% |
Major | 2% | 4% | 6% |
Colonel | 1% | 0% | 21% |
