IL6 and vitamin D deficiency: The analysis of serum level of inflammatory markers reveals mean IL-6 level (in pg/mL) of 19.34 ± 6.17 in patients with vitamin D deficiency (serum Serum 25 (OH)D < 20 ng/mL) and 12.18 ± 4.29 in patients with normal vitamin D level, the difference was found to be statistically significant.