Epidemiology, treatment patterns, and associated risk factors in perianal fistulizing Crohn’s disease: A systematic literature review

Figure 1 Crohn’s perianal fistula prevalence in adult, pediatric, and mixed populations across study types and geographical location. Data are presented as range (interquartile range) for study type and median [range (interquartile range)] for geographical region. Only studies reporting relevant data are included.