Annals of Behavioral Medicine

, Volume 51, Issue 1, pp 94–104 | Cite as

Perceived Weight Discrimination and 10-Year Risk of Allostatic Load Among US Adults

Original Article

Abstract

Background

Discrimination promotes multisystem physiological dysregulation termed allostatic load, which predicts morbidity and mortality. It remains unclear whether weight-related discrimination influences allostatic load.

Purpose

The aim of this study was to prospectively examine 10-year associations between weight discrimination, allostatic load, and its components among adults 25–75 years in the Midlife Development in the US Biomarker Substudy.

Methods

Participants with information on weight discrimination were analyzed (n=986). At both timepoints, participants self-reported the frequency of perceived weight discrimination across nine scenarios as “never/rarely” (scored as 0), “sometimes” (1), or “often” (2). The two scores were averaged and then dichotomized as “experienced” versus “not experienced” discrimination. High allostatic load was defined as having ≥3 out of 7 dysregulated systems (cardiovascular, sympathetic/parasympathetic nervous systems, hypothalamic pituitary axis, inflammatory, lipid/metabolic, and glucose metabolism), which collectively included 24 biomarkers. Relative risks (RR) were estimated from multivariate models adjusted for sociodemographic and health characteristics, other forms of discrimination, and BMI.

Results

Over 41% of the sample had obesity, and 6% reported weight discrimination at follow-up. In multivariable-adjusted analyses, individuals who experienced (versus did not experience) weight discrimination had twice the risk of high allostatic load (RR, 2.07; 95 % CI, 1.21; 3.55 for baseline discrimination; 2.16, 95 % CI, 1.39; 3.36 for long-term discrimination). Weight discrimination was associated with lipid/metabolic dysregulation (1.56; 95 % CI 1.02, 2.40), glucose metabolism (1.99; 95 % CI 1.34, 2.95), and inflammation (1.76; 95 % CI 1.22, 2.54), but no other systems.

Conclusions

Perceived weight discrimination doubles the 10-year risk of high allostatic load. Eliminating weight stigma may reduce physiological dysregulation, improving obesity-related morbidity and mortality.

Keywords

Obesity stigma Weight discrimination Allostatic load Allostasis Dysregulation Weight stigma 

Supplementary material

12160_2016_9831_MOESM1_ESM.docx (15 kb)
Supplemental Table 1(DOCX 15 kb)

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Copyright information

© The Society of Behavioral Medicine 2016

Authors and Affiliations

  1. 1.Department of Nutrition and Food SciencesUniversity of Rhode IslandKingstonUSA
  2. 2.Department of NutritionHarvard T. H. Chan School of Public HealthBostonUSA

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