Table 1

 Genotype frequencies of R620W (rs2476601) and results of χ2 statistics

No. of genotypes (%)Statistical parameters
C/T+T/TC/Cχ2 (df = 1)p value
A: exploratory case-control study; B: combined case-control studies.
A375 psoriasis vulgaris patients78+3 (21.8)289 (78.2)1.530.22
376 controls65+2 (18.3)299 (81.7)
B793 psoriasis vulgaris patients158+11 (21.5)611 (78.5)1.690.19
937 controls164+9 (18.9)741 (81.1)