The prevalence of diagnosed psoriatic arthritis was 0.16%, but 0.14% when the proportion of individuals without confirmable disease at examination was taken into account.
Algengi sóragigtar byggt á skráðum greiningum var 0.16%, en 0.14% ef leiðrétt var fyrir þeim hluta sem ekki var hægt að staðfesta sjúkdóminn hjá við skoðun.