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Serum 25(OH)D levels
| Total serum 25(OH)D in ng/ml (mean ± SD, range) | 29.2 ± 9.2, 6 – 58 |
| Serum 25(OH)D3 in ng/ml (mean ± SD, range) | 27.9 ± 9.3, 6 – 58 |
| Serum 25(OH)D2 in ng/ml (mean ± SD, range) | 1.3 ± 3.1, 0 – 29 |
| Serum 25(OH)D ≤19 ng/ml % (N) | 13% (20) |
| Serum 25(OH)D 20-29 ng/ml % (N) | 42% (64) |
