Females with rheumatoid arthritis and psoriasis inappropriately treated?
The overall estimated prevalence of immune-mediated inflammatory diseases in western societies is 5-7%. Interestingly, the European Working Group on Immune-Mediated Inflammatory Diseases has initiated a forum to foster collaborations in this important clinical field which includes diseases such as rheumatoid arthritis (RA), inflammatory bowel disease (IBD) and psoriasis. All three diseases have similar pathophysiology and are treated by common biological therapies including tumor necrosis factor (TNF) inhibitors.
Gender differences are observed for RA and IBD with female: male incidence ratios of 3:1 and 1:1.5, respectively. These differences have been suggested to be caused by differences in treatment administered to men and women.This plausible explanation has been investigated by Prof van Vollenhoven and colleagues …

