“…White blood cell count, white blood cell type and C‐reactive protein had been measured within 1 h. Additional samples had been centrifuged immediately and serum had been separated and stored at −30 °C. Serum total calcium, phosphate, creatinine, total alkaline phosphatase, interleukin‐6 and tumour necrosis factor‐alpha had already been measured for the needs of the previous study . Additional measurements included serum glucose, insulin, visfatin, resistin and leptin.…”