Table 1. Summary of 22,214 simultaneous assessments of oral vitamin D supplementation and serum 25(OH)D level.
| N | % | Mean | Std | |
| Vitamin D supplementation (IU per day) | 22214 | 2841.6 | 4022.5 | |
| Serum 25(OH)D level nmol/L | 22214 | 90.5 | 46.5 | |
| Albumin corrected calcium (mmol/L) | 10940 | 2.4 | 0.1 | |
| Age (Years) | ||||
| <40 | 7800 | 35.1 | ||
| 40 to 49 | 4766 | 21.5 | ||
| 50 to 59 | 5291 | 23.8 | ||
| 60+ | 4357 | 19.6 | ||
| Gender | ||||
| Female | 10944 | 49.3 | ||
| Male | 11270 | 50.7 | ||
| Weight Status | ||||
| Underweight | 279 | 1.3 | ||
| Normal weight | 7197 | 33.4 | ||
| Overweight | 7962 | 36.9 | ||
| Obesity | 6131 | 28.4 | ||
| Absolute weight | ||||
| <60 kg | 2270 | 10.6 | ||
| 60 kg to 80 kg | 8734 | 40.8 | ||
| 80.1 to 100 kg | 7232 | 33.8 | ||
| >100 kg | 3158 | 14.8 | ||
| season | ||||
| Winter | 7320 | 33.0 | ||
| Spring | 7039 | 31.7 | ||
| Summer | 4294 | 19.3 | ||
| Fall | 3561 | 16.0 |