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Quantifying self-rated age.

Georgia Verropoulou1, Apostolos Papachristos1, George B Ploubidis2

  • 1University of Piraeus.

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Summary
This summary is machine-generated.

This study introduces self-rated age as a subjective aging indicator. It shows that health and physical activity influence self-rated age similarly to other age indicators, reflecting the aging process.

Keywords:
HMDHRSSHAREbiological ageself-rated agesubjective agesubjective ageing indicatorsubjective survival probabilities

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Area of Science:

  • Gerontology
  • Sociology
  • Biostatistics

Background:

  • Chronological age and life tables are standard for life expectancy estimation.
  • Subjective age indicators offer insights into individual perceptions of aging.
  • Validating self-rated age against other subjective and biological markers is crucial.

Purpose of the Study:

  • To estimate a novel subjective aging indicator: self-rated age.
  • To assess the concurrent validity of self-rated age against subjective survival probabilities, subjective age, and biological age.
  • To explore demographic and health-related factors influencing self-rated age.

Main Methods:

  • Utilized data from the Survey of Health, Ageing and Retirement in Europe (SHARE) and the Health and Retirement Study (HRS).
  • Employed life tables from the Human Mortality Database.
  • Applied multinomial regression models for statistical analysis.

Main Results:

  • Health status and physical activity frequency showed similar patterns across self-rated age, subjective survival probabilities, subjective age, and biological age.
  • Cognitive function's impact on these age indicators varied significantly by geographical region.
  • Self-rated age emerged as a subjective adjustment that better captures the nuances of the aging process.

Conclusions:

  • Self-rated age is a valid subjective indicator of aging, influenced by health and lifestyle factors.
  • Cognitive function's regional differences highlight the complexity of subjective aging.
  • Self-rated age provides a valuable perspective on individual aging experiences beyond chronological measures.