Erratum: Investigation of association of the IL12B and IL23R genes with Psoriatic Arthritis

In Tables 1 and 2 of the article by Filer et al in the December 2008 issue of Arthritis & Rheumatism (pages 3705–3709), the major and minor of alleles of rs7530511 were assigned incorrectly. The common allele is C, not T. Thus, the genotypes for this variant, as listed in Table 1, should read CC, CT, and TT, respectively (rather than TT, TC, and CC), and the haplotypes, as listed in Table 2, should read CG, TG, and CA, respectively (rather than TG, CG, and TA). The remaining data in the tables and the text are correct.