Table 3 shows the accuracy of the positivity for the variant RS1006737 of the CACNA1C gene as a screener versus the diagnosis of BD: the sensitivity was 0.750 (Cl 95% 0.55–0.90); the specificity was 0.375 (Cl 95% (0.28–0.45); the PPV was 0.375 (Cl 95% 0.28–0.45); and the PNV was 0.750 (Cl 95% 0.55–0.90). The gene discussed is CACNA1C; the disease is Behcet disease.