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Adjusted incidence rates of Barthel index (BI)<95 by the numbers of ideal health behaviors (smoking, obesity, physical activity, and diet) and health factors (blood pressure, cholesterol, and glucose). Incidence rates were adjusted for age, sex, race‐ethnicity, education, health insurance, marital status, number of friends, moderate alcohol drinking, depression, history of coronary artery disease, and history of peripheral vascular disease.
