IL12B and Behcet disease: Subsequently, we analyzed the combined data of the two studies, which showed a consistent association of the CC genotype and C allele of rs3212227/IL-12B with BD (pccomb = 6.3×10−7, OR = 1.8, 95% CI 1.5 to 2.2; pccomb = 2.0×10−5, OR = 1.3, 95% CI 1.2 to 1.5, respectively).