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Area of Science:

  • Public Health
  • Occupational Health
  • Endocrinology

Background:

  • Workplace discrimination is a significant public health issue impacting worker health.
  • Chronic exposure to discrimination can negatively affect health outcomes, including glucose control.

Purpose of the Study:

  • To investigate the association between chronic work discrimination and changes in HbA1c over four years in older workers.
  • To determine if allostatic load (AL) modifies the relationship between work discrimination and HbA1c levels.

Main Methods:

  • Utilized data from the Health and Retirement Study (2010-2016) with 3,246 participants.
  • Employed conditional change multinomial logistic regression to analyze the link between chronic work discrimination, high AL, and HbA1c.
  • Controlled for relevant covariates in the statistical models.

Main Results:

  • Severe chronic work discrimination was linked to elevated HbA1c (RRR=1.61).
  • High allostatic load (AL) was also associated with elevated HbA1c (RRR=1.49).
  • Hispanic and Black participants showed increased risk for intermediate and elevated HbA1c, respectively, compared to White participants. Moderate to severe discrimination was linked to elevated HbA1c in long-tenured workers.

Conclusions:

  • Chronic work discrimination is independently associated with elevated HbA1c levels, indicating increased type 2 diabetes risk.
  • Allostatic load did not moderate the association between work discrimination and HbA1c.
  • Implementing robust anti-discrimination laws and improving workplace environments are crucial for older workers' health and reducing diabetes risk.