A nationwide cohort study of the incidence of microscopic colitis in Sweden

Summary Background Epidemiological studies of microscopic colitis have shown varying but increasing incidence rates. Aim To assess the incidence of microscopic colitis in Sweden. Methods Nationwide cohort study performed in 1995‐2015 based on biopsy reports. Age‐specific and age‐standardised incidence rates were calculated. Results We identified 13 844 patients with an incident diagnosis of microscopic colitis. Lymphocytic colitis (n = 9238)...