Contribution of income and job strain to the association between education and cardiovascular disease in 1.6 million Danish employees

Research output: Contribution to journalJournal articleResearchpeer-review

  • Elisabeth Framke
  • Jeppe Karl Sørensen
  • Andersen, Per Kragh
  • Annemette Coop Svane-Petersen
  • Kristina Alexanderson
  • Jens Peter Bonde
  • Kristin Farrants
  • Esben Meulengracht Flachs
  • Linda L. Magnusson Hanson
  • Solja T. Nyberg
  • Ebbe Villadsen
  • Mika Kivimaki
  • Rugulies, Reiner Ernst
  • Ida E. H. Madsen
We examined the extent to which associations between education and cardiovascular disease (CVD) morbidity and mortality are attributable to income and work stress.

Methods and results
We included all employed Danish residents aged 30–59 years in 2000. Cardiovascular disease morbidity analyses included 1 638 270 individuals, free of cardiometabolic disease (CVD or diabetes). Mortality analyses included 41 944 individuals with cardiometabolic disease. We assessed education and income annually from population registers and work stress, defined as job strain, with a job-exposure matrix. Outcomes were ascertained until 2014 from health registers and risk was estimated using Cox regression. During 10 957 399 (men) and 10 776 516 person-years (women), we identified 51 585 and 24 075 incident CVD cases, respectively. For men with low education, risk of CVD was 1.62 [95% confidence interval (CI) 1.58–1.66] before and 1.46 (95% CI 1.42–1.50) after adjustment for income and job strain (25% reduction). In women, estimates were 1.66 (95% CI 1.61–1.72) and 1.53 (95% CI 1.47–1.58) (21% reduction). Of individuals with cardiometabolic disease, 1736 men (362 234 person-years) and 341 women (179 402 person-years) died from CVD. Education predicted CVD mortality in both sexes. Estimates were reduced with 54% (men) and 33% (women) after adjustment for income and job strain.

Low education predicted incident CVD in initially healthy individuals and CVD mortality in individuals with prevalent cardiometabolic disease. In men with cardiometabolic disease, income and job strain explained half of the higher CVD mortality in the low education group. In healthy men and in women regardless of cardiometabolic disease, these factors explained 21–33% of the higher CVD morbidity and mortality.
Original languageEnglish
JournalEuropean Heart Journal
Issue number11
Pages (from-to)1164-1178
Number of pages15
Publication statusPublished - 2020

    Research areas

  • Nationwide study, Universal coverage, Social determinants, Mechanisms, Cardiovascular disease, Cardiovascular mortality

Number of downloads are based on statistics from Google Scholar and

No data available

ID: 239561308