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Adjusted trajectories of log interleukin-6 (IL-6) and perceived fatigability over 6 years. Note: Figure is adjusted for baseline age, sex, race, height (cm), body mass index (kg/m2), smoking status, depression, cardiovascular disease, hypertension, stroke, pulmonary disease, diabetes, cancer, and osteoarthritis. IL-6 is in units of pg/mL; RPE = rate of perceived exertion.
