Median serum levels of vitamin D (nmol/l) in patients with disease duration ≤3 months and >3 months
| Disease duration* | |||
|---|---|---|---|
| ≤3 months | >3 months | p Value | |
| Cases (n) | 66 | 83 | <0.0001 |
| Median (range) | 31 (10–105) | 50 (10–168) | <0.0001 |
| Mean±SD | 36±19 | 53±27 | <0.0001 |
| Coefficient of variation | 52.07% | 51.44% | |
*Disease duration calculated from the diagnosis to date of blood sampling.