Table 2 Descriptive statistics of outcome variables
| Â | No. | % |
|---|---|---|
Knowledge about vitamin D (correct response) | ||
  Have ever heard of vitamin D | 219 | 83.9 |
  Vitamin D is for maintaining bone health | 217 | 83.1 |
  Vitamin D is for supporting calcium absorption | 189 | 72.4 |
  Vitamin D can be increased by sunlight exposure | 180 | 69 |
  Minimum time for sunlight exposure is 30 min | 120 | 64 |
Attitudes toward sunlight exposure | ||
  Like sunlight | 144 | 55.2 |
  Use sun hat when exposed to sunlight | 211 | 80 |
  Use sunscreen products containing SPF ≥ 15 when exposed to sunlight | 168 | 64.4 |
  Like outdoor activities | 177 | 67.8 |
  Spend most of the time outdoors | 55 | 21.1 |
  Feel that have had sufficient sunlight exposure | 83 | 31.8 |
Behavior for sufficient sunlight exposure | 178 | 68.2 |
Health literacy | ||
  Adequate | 212 | 81.2 |
  Inadequate | 49 | 18.8 |
Nutritional literacy | ||
  Adequate | 99 | 37.9 |
  Inadequate | 162 | 62.1 |