Figure 1From: Epidemiological studies in incidence, prevalence, mortality, and comorbidity of the rheumatic diseasesAnnual incidence of rheumatoid arthritis in Rochester, Minnesota. Shown is the annual incidence rate per 100,000 population by sex: 1955 to 1995. Each rate was calculated as a 3-year centered moving average. Reproduced from [9] with permission.Back to article page