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Distribution of atrial fibrillation effect on quality of life (AFEQT) domain scores, by income. bar graph relating AFEQT domain scores to income as a categorical variable. Significant graded relationship with lower annual income associated with inferior health-related quality of life in the daily activity domain. Error bars represent SD. BMI, body mass index; CHF, congestive heart failure; HTN, hypertension; S-TOFHLA, short-test of functional health literacy in adults.
