The prevalence of histocompatibility antigen HLA-Cw6 was 72.7% in twenty-two patients with the guttate form and 45.9% in thirty-seven patients with the vulgaris form of psoriasis; the difference between these figures and the prevalence (7.4%) in 462 healthy blood donors in Finland is highly significant. The previously observed excess of several HLA-B locus genes might be secondary to their close linkage with the Cw6 gene. Hereditary factors appear more important in the guttate than in the vulgaris form of psoriasis.
No takes yet. Share an insight, caveat, or question.
Tiilikainen et al. (1980) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: