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Workplace racial segregation increases cardiovascular disease (CVD) mortality risk for Black workers. This association persists regardless of job mobility, highlighting systemic workplace health disparities.

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Area of Science:

  • Occupational Health
  • Epidemiology
  • Social Determinants of Health

Background:

  • Limited research exists on health impacts of nonresidential segregation, specifically in workplaces.
  • Workplace racial discrimination can impede career advancement and worsen cardiovascular disease (CVD) risk factors.
  • This study investigates Black-White workplace segregation and CVD mortality in manufacturing workers.

Purpose of the Study:

  • To assess the relationship between Black-White workplace racial segregation and CVD mortality risk.
  • To examine job mobility as a potential modifier of this relationship among Black workers.
  • To understand the impact of workplace segregation on cardiovascular health outcomes.

Main Methods:

  • Retrospective cohort study of 5047 Black manufacturing workers (1941-2015).
  • Cumulated annual segregation exposure and calculated job mobility over working life.
  • Used Cox models and penalized splines to analyze segregation's impact on CVD mortality.

Main Results:

  • A strong positive association was found between higher workplace racial segregation and CVD mortality (HR 1.61).
  • Increased CVD risk was observed in workers with moderate/high segregation exposure, particularly those with lower job mobility.
  • The association between segregation and CVD mortality was evident across different levels of job mobility.

Conclusions:

  • Workplace Black-White segregation is linked to increased CVD mortality among Black workers.
  • Cardiovascular harm from racial segregation in the workplace occurs independently of job mobility.
  • Findings underscore the significant impact of workplace environment on cardiovascular health disparities.