Mid-Life Vascular Risk and Rate of Physical Function Decline Among Older Adults: The Atherosclerosis Risk in Communities (ARIC) Study.

Background Physical function and its decline in older age may be connected to treatable vascular risk factors in mid-life. This study aimed to evaluate whether these factors affect the underlying rate of decline. Methods This prospective cohort included 5 481 older adults aged 67–91 in the Atherosclerosis Risk in Communities Study (mean [standard deviation { SD }] age = 75.8 [5.0], 58% women, 21% Black race) without a history of stroke. The main outcome was the rate of Short Physical Performance Battery (SPPB) decline over a median late-life follow-up of 4.8 years. Primary mid-life (aged 45–64) exposures were Visit 1 hypertension (>140/90 mm Hg or treatment), diabetes (>126 mg/dL or treatment), high cholesterol (>240 mg/dL or treatment), and smoking, and number of decades of vascular risk exposure across Visits 1–4. Results The average adjusted rate of SPPB decline (points per 5 years) for older adults was −0.79 (confidence interval [CI]: −0.87, 0.71) and was accelerated by mid-life hypertension (+57% decline vs normotension: additional decline of −0.47, 95% CI: −0.64, −0.30), diabetes (+73% decline vs no diabetes: additional decline of −0.67, 95% CI: −1.09, −0.24), elevated systolic blood pressure (+17% decline per SD : −0.16, 95% CI: −0.23, −0.10), and elevated fasting blood glucose (+16% decline per SD : −0.015, 95% CI: −0.24, −0.06). Each decade greater mid-life exposure to hypertension (+32% decline: −0.93, 95% CI: −1.25, −0.61) and diabetes (+35% decline: −1.03, 95% CI: −1.68, −0.38) was associated with faster SPPB decline. Conclusions Mid-life control of blood pressure and diabetes may offset aging-related functional decline. [ABSTRACT FROM AUTHOR]