Voskuyl et al. (A-41) investigated those characteristics (including male gender) of patients with rheumatoid arthritis (RA) that are associated with the development of rheumatoid vasculitis (RV).

Subjects consisted of 69 patients who had been diagnosed as having RV and 138 patients with RA who were not suspected to have vasculitis. There were 32 males in the RV group and 38 among the RA patients.