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Cumulative Socioeconomic Status Across the Life Course and Subclinical Atherosclerosis
Ist Teil von
Annals of epidemiology, 2007-04, Vol.17 (4), p.296-303
Ort / Verlag
United States: Elsevier Inc
Erscheinungsjahr
2007
Link zum Volltext
Quelle
Access via ScienceDirect (Elsevier)
Beschreibungen/Notizen
Purpose The purpose of this study is to investigate the relationship between individual-level and neighborhood-level socioeconomic status (SES) across the life course and subclinical atherosclerosis. Methods Participants from the Atherosclerosis Risk in Communities Study (n = 12,332) were queried about individual-level SES and residential addresses across the life course. Individual-level measures were scored and summed to obtain a summary score (I-CumSES), whereas residential addresses were geocoded and linked to census data to obtain a summary neighborhood z score (N-CumSES) to evaluate the association of SES with intima-media thickness (IMT) and peripheral arterial disease (PAD). Results A 1-SD lower I-CumSES was associated with greater mean IMT in each race–sex group and greater odds of PAD in white men (odds ratio [OR], 1.28; 95% confidence interval [CI], 0.99–1.64), white women (OR, 1.18; 95% CI, 1.02–1.36), and black women (OR, 1.33; 95% CI, 1.00–1.76). Compared with the highest tertile of N-CumSES, the lowest tertile was associated with greater mean IMT among whites, but was not associated with PAD for whites or blacks. When I-CumSES and N-CumSES were considered simultaneously, associations remained for only I-CumSES and were attenuated after adjustment for cardiovascular disease (CVD) risk factors. Conclusions Lower cumulative individual-level SES across the life course was associated with a greater burden of subclinical atherosclerosis, and this association was mediated in part by CVD risk factors.