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Autenrieth, C.S. ; Evenson, K.R.* ; Yatsuya, H.* ; Shahar, E.* ; Baggett, C.* ; Rosamond, W.D.*

Association between physical activity and risk of stroke subtypes: The atherosclerosis risk in communities study.

Neuroepidemiol. 40, 109-116 (2013)
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Background: The relationship between stroke subtypes and physical activity is unclear. Methods: Using data from 13,069 men and women aged 45-64 years who participated in the Atherosclerosis Risk in Communities Study, physical activity was assessed by self-report using the Baecke questionnaire at baseline (1987-1989). The American Heart Association's ideal cardiovascular health guidelines served as a basis for the calculation of three physical activity categories: poor, intermediate, and ideal. Stroke and its subtypes were ascertained from physician review of medical records. Multivariable adjusted hazard ratios (HR) and 95% confidence intervals (CI) were calculated using Cox regression models. Results: During a median follow-up of 18.8 years, a total of 648 incident ischemic strokes occurred. Significant inverse associations were found between physical activity categories and total, total ischemic, and nonlacunar stroke in adjusted models (age, sex, race-center, education, cigarette-years). Compared with poor physical activity, the adjusted HR (95% CI) for ideal physical activity were 0.78 (0.62-0.97) for total, 0.76 (0.59-0.96) for total ischemic, 0.85 (0.51-1.40) for lacunar, 0.77 (0.47-1.27) for cardioembolic, and 0.71 (0.51-0.99) for nonlacunar stroke. Additional adjustments for waist-to-hip ratio, systolic blood pressure, antihypertensive medication, diabetes, left ventricular hypertrophy and laboratory parameters attenuated the HR. Further sex- and race-specific analyses revealed that the association was predominantly observed among males and among African-Americans. Conclusion: These data suggest a tendency toward a reduced risk of total, total ischemic, and nonlacunar stroke with higher levels of physical activity.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Cerebrovascular disease; Stroke subtypes; Exercise; Epidemiology; Prevention; Ischemic-stroke ; Heart-disease ; Follow-up ; Metaanalysis ; Women ; Questionnaire ; Update
ISSN (print) / ISBN 0251-5350
e-ISSN 1423-0208
Zeitschrift Neuroepidemiology
Quellenangaben Band: 40, Heft: 2, Seiten: 109-116 Artikelnummer: , Supplement: ,
Verlag Karger
Begutachtungsstatus Peer reviewed