Association between socioeconomic status and arteriosclerotic cardiovascular disease risk and cause-specific and all-cause mortality
Data from the 2005–2018 National Health and Nutrition Examination Survey
Bibliographic Data
Background Morbidity and mortality of arteriosclerotic cardiovascular disease (ASCVD) varied according to socioeconomic status (SES), and evidence on the association between SES and ASCVD risk, and cause-specific and all-cause mortality was nevertheless lacking in large-scale or population-based studies. Methods A multicycle cross-sectional design and mortality linkage study was conducted using data from Continuous National Health and Nutrition Examination Survey (NHANES) in the United States, including public use linked mortality follow-up files through December 31, 2019. Poverty income ratio (PIR) served as a SES index. A series of weighted Logistic regressions and Cox proportional hazards regressions were used to investigate the association between the SES and the risk of ASCVD and mortality, respectively. Results The study sample was comprised of 30,040 participants aged 20–85 years old during the 2005–2018 period. Weighted Logistic regression models consistently indicated significant relationship between people experiencing poverty and increased risk of ASCVD, and linear trend tests were all statistically significant (all P for trend < 0.001). Additionally, weighted Cox regression analysis consistently demonstrated that the hazards of cause-specific and all-cause mortality increased, with the decrease of each additional income level, and trend analyses indicated similar results (all P for trend < 0.001). Conclusions Our study confirmed that the SES was strongly linked to living with ASCVD, and cause-specific and all-cause mortality, even after adjusting for other factors that could impact risk, such as the American Heart Association (AHA)'s Life's Simple 7 cardiovascular health score and variables of age, sex, marital status, education, and depression severity
Confidence interval · Disease · Environmental health · Hazard ratio · Logistic regression · National Death Index · National Health and Nutrition Examination Survey · Population · Proportional hazards model · Socioeconomic status · Cardiovascular Health and Risk Factors · Chronic Disease Management Strategies · Demography · Health disparities and outcomes · Medicine · Gerontology · Internal Medicine
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