To what extent is mortality predictable from facial photographs?

Nifty paper on the predictive validity of the impression of “old age”. Here is the abstract:

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Predicting Mortality From Human Faces

  1. Dominika Dykiert, PhD,
  2. Timothy C. Bates, PhD,
  3. Alan J. Gow, PhD,
  4. Lars Penke, PhD,
  5. John M. Starr, MA, FRCPE and
  6. Ian J. Deary, PhD, FRCPE

+ Author Affiliations


  1. From the Centre for Cognitive Ageing and Cognitive Epidemiology (D.D., T.C.B., A.J.G., L.P., J.M.S., I.J.D.), Department of Psychology (D.D., T.C.B., A.J.G., L.P., I.J.D.), and Geriatric Medicine Unit (J.M.S.), University of Edinburgh, Edinburgh, United Kingdom.
  1. Address correspondence and reprint requests to Ian J. Deary, PhD, FRCPE, or Timothy C. Bates, PhD, Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, 7 George Sq, Edinburgh EH8 9JZ, United Kingdom. E-mail: i.deary@ed.ac.uk; tim.bates@ed.ac.uk

Abstract

Objective To investigate whether and to what extent mortality is predictable from facial photographs of older people.

Methods High-quality facial photographs of 292 members of the Lothian Birth Cohort 1921, taken at the age of about 83 years, were rated in terms of apparent age, health, attractiveness, facial symmetry, intelligence, and well-being by 12 young-adult raters. Cox proportional hazards regression was used to study associations between these ratings and mortality during a 7-year follow-up period.

Results All ratings had adequate reliability. Concurrent validity was found for facial symmetry and intelligence (as determined by correlations with actual measures of fluctuating asymmetry in the faces and Raven Standard Progressive Matrices score, respectively), but not for the other traits. Age as rated from facial photographs, adjusted for sex and chronological age, was a significant predictor of mortality (hazard ratio = 1.36, 95% confidence interval = 1.12?1.65) and remained significant even after controlling for concurrent, objectively measured health and cognitive ability, and the other ratings. Health as rated from facial photographs, adjusted for sex and chronological age, significantly predicted mortality (hazard ratio = 0.81, 95% confidence interval = 0.67?0.99) but not after adjusting for rated age or objectively measured health and cognition. Rated attractiveness, symmetry, intelligence, and well-being were not significantly associated with mortality risk.

Conclusions Rated age of the face is a significant predictor of mortality risk among older people, with predictive value over and above that of objective or rated health status and cognitive ability.

Key words

  • Abbreviations:
    BLSA
    Baltimore Longitudinal Study of Aging
    BP
    blood pressure
    FA
    fluctuating asymmetry
    ICC
    intraclass correlation
    LBC1921
    Lothian Birth Cohort 1921
    MMSE
    Mini Mental State Examination
    SPM
    Standard Progressive Matrices
  • Received December 6, 2011.
  • Revision received February 6, 2012.