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Income Volatility & Elevated Risk of CVD

Circulation; ePub 2019 Jan 7; Elfassy, et al

Among a cohort of relatively young adults, income volatility was independently associated with a nearly 2-fold risk of cardiovascular disease (CVD) and all-cause mortality, a new study found. Researchers examined associations of income volatility from 1990 to 2005 with incident CVD and all-cause mortality in the subsequent 10 years. They studied 3,937 black and white participants aged 23-35 years in 1990 (baseline) from the Coronary Artery Risk Development in Young Adults Study. Income volatility was defined as the intraindividual SD of the percent change in income across 5 assessments from 1990 to 2005. Among the findings:

  • 106 CVD events and 164 deaths occurred between 2005 and 2015 (incident rate, 2.76 and 3.66 per 1,000 person-years, respectively).
  • Higher income volatility and more income drops were associated with greater CVD risk and all-cause mortality.
  • It is likely that there are specific psychosocial and biological pathways through which income volatility is associated with CVD and premature mortality.

Citation:

Elfassy T, Swift SL, Glymour MM, et al. Associations of income volatility with incident cardiovascular disease and all-cause mortality in a US cohort. [Published online ahead of print January 7, 2019]. Circulation. doi:10.1161/CIRCULATIONAHA.118.035521.