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Subjective age and adiposity: evidence from five samples.

Yannick Stephan1, Angelina R Sutin2, Antonio Terracciano2

  • 1Euromov, Univ. Montpellier, Montpellier, France. yannick.stephan@umontpellier.fr.

International Journal of Obesity (2005)
|September 26, 2018
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Summary

Feeling older is linked to higher obesity risks in middle-aged and older adults. This study found subjective age is a stronger predictor of body mass index (BMI) and waist circumference than chronological age.

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Area of Science:

  • Gerontology
  • Public Health
  • Obesity Research

Background:

  • Obesity is a growing public health concern, particularly affecting middle-aged and older populations.
  • Understanding factors contributing to obesity in these age groups is crucial for effective health interventions.

Purpose of the Study:

  • To investigate the relationship between subjective age and obesity indicators (BMI, waist circumference).
  • To compare the influence of subjective age versus chronological age on adiposity in adults.

Main Methods:

  • Cross-sectional analysis of five large adult samples (N > 24,000; ages 34-105).
  • Statistical modeling controlled for demographic variables.
  • Meta-analysis synthesized findings across all samples.

Main Results:

  • Older subjective age was significantly associated with higher BMI and waist circumference.
  • Feeling older increased the likelihood of obesity (BMI ≥ 30) by 10-20%.
  • Subjective age was a more consistent predictor of adiposity than chronological age.

Conclusions:

  • Subjective age is a notable factor associated with obesity in middle-aged and older adults.
  • Perceived age may play a more significant role in adiposity than actual age.
  • Findings highlight subjective age as a potential target for obesity prevention strategies.