CD6 and Behcet disease: Combining the data from the first and second stage study showed that rs2929 in CD11c was associated with the susceptibility to BD (GG genotype: Pc = 5.573 × 10−6, OR = 1.56; AG genotype: Pc = 2.087 × 10−5, OR = 0.64; G allele: Pc = 1.398 × 10−5, OR = 1.45) (Table 2), and that rs11230563 in CD6 also conferred susceptibility to BD (CC genotype: Pc = 1.097 × 10−8, OR = 0.60; CT genotype: Pc = 3.266 × 10−7, OR = 1.63; C allele: Pc = 7.594 × 10−9, OR = 0.64) (Table 2).