Table 2 The distribution and relationship between 25OHD levels and the variables that can affect it
From: The psychotropic effect of vitamin D supplementation on schizophrenia symptoms
25OHD Level | |||
|---|---|---|---|
Deficiency | Insufficiency | ||
(20–29.9 ng/dL) | (< 20 ng/dL) | p | |
Smoking (per day) | |||
Nonsmoker | 8 | 18 | > 0.05 |
Less than one pack/day | 4 | 6 | |
More than one pack/day | 2 | 2 | |
Tea/coffee consumption | |||
None | 1 | 2 | > 0.05 |
2 large cups/day or less | 4 | 8 | |
2–5 large cups/day | 6 | 9 | |
5 large cups/day or more | 3 | 7 | |
Skin color | |||
Light | 17 | 11 | > 0.05 |
Fair-skinned | 6 | 2 | |
Brunette | 3 | 1 | |
Physical activity (Daily) | |||
Low (< 1 h/day) | 20 | 4 | > 0.05 |
Moderate (1 h/day) | 5 | 9 | |
Adequate (> 1 h/day) | 1 | 1 | |
Diet (Fish consumption) | |||
Less than once a month | 4 | 5 | > 0.05 |
Once a month | 5 | 3 | |
Once every two weeks | 12 | 2 | |
Once to twice a week | 5 | 4 | |
Sun exposure | |||
Less than one hour/day | 23 | 6 | > 0.05 |
1–2 h/day | 3 | 8 | |
Clothing style | |||
Hijab clothing | 25 | 12 | > 0.05 |
Non-hijab clothing | 1 | 2 | |
Body-mass index (BMI) kg/m2 | |||
18.5–24.99 - Ideal weight | 5 | 3 | > 0.05 |
25–29.99 - Overweight | 11 | 8 | |
> 30.0 - Obese | 10 | 3 | |
Total | 26 | 14 | |