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Figure 5 Type of atrial fibrillation (Afib) at diagnosis and at last follow-up in Olmsted County patients age 60 years or younger and those older than 60 years. Among younger patients, 20% never had a recurrence, 58% had recurrent disease, and only 22% had chronic atrial fibrillation at follow-up. Among older patients, 67% were in chronic Afib at follow-up. (Data from Kopecky et al. [48,50]).