The mean white blood cell count (WBC) in FMF group was 6765.7 ± 2124.94 cells per microliter; MPV (mean platelet volume) was 9.6 ± 1.05 fL; mean ESR, CRP, fibrinogen, and vitamin D levels were 15.7 (11) mm/h; 9.5 (2) mg/dL; 294 ± 66.49 mg/dL; 19.4 ± 17.03 ng/dL, respectively. This evidence concerns the gene ESR1 and familial Mediterranean fever.