Together with the prevalence of vitamin D deficiency (25(OH)D < 50 nmol/L) was high, 63.8% with females had a higher rate than males (91.9% vs. 45.4%), and the concentration of PTH of the study population also borderline average range concentration, thus, these conditions could be possible explanations for the absence of impact between 25(OH)D and CTX concentrations in the present study. This evidence concerns the gene PTH and vitamin D deficiency.