Table 1. Demographic characteristics of the subjects .
| Participant characteristics | Mean ± SD | Minimum | Maximum |
| Vitamin D level (nmol/L) | 29.0 ± 16.0 | 8.0 | 96.0 |
| Age (years) | 34.0 ± 9.0 | 20.0 | 64.0 |
| Weight (kg) | 68.8 ± 12.0 | 43.0 | 120.0 |
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