The journal of nutrition, health & aging

, Volume 21, Issue 3, pp 262–265 | Cite as

Validity of knee-estimated height to assess standing height in older adults: A secondary longitudinal analysis of the Mexican health and aging study

  • C. García-Peña
  • Mario Ulises Pérez-ZepedaEmail author



The main objective was to test the validity of height estimated by knee height in Mexican older adults, as a surrogate for standing height.


Cohort study.


Data were drawn from the first and third waves of the Mexican Health and Aging Study.


Included participants were community-dwelling 50-year or older adults with measured height at baseline and in follow-up. Subjects with a lower limb fracture in the follow-up were excluded.


Main measurements were baseline standing height and 11-year follow-up and knee-estimated height in follow-up. Population specific equations were used to estimate standing height from knee height. Comparisons between baseline standing height and knee-derived height were done with simple correlations, limits of agreement (Bland-Altman plot) and Deming regressions.


A total of 136 50-year or older adults were followed-up for eleven years, with a mean age of 60. There was a positive correlation between knee-estimated height and baseline standing height of 0.895 (p<0.001) for men and of 0.845 (p<0.001) for women. Limits of agreement for men were from -6.95cm to 7.09cm and for women from -6.58cm to 8.44cm.


According to our results, knee-estimated height could be used interchangeably with standing height in Mexican older adults, and these results might apply also to other populations.

Key words

Body height body mass index geriatric assessment validation 


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Copyright information

© Serdi and Springer-Verlag France 2016

Authors and Affiliations

  • C. García-Peña
    • 1
  • Mario Ulises Pérez-Zepeda
    • 2
    • 3
    Email author
  1. 1.Head of the Research Office at the Instituto Nacional de GeriatríaMexico CityMéxico
  2. 2.Geriatric Epidemiology Research Department at Instituto Nacional de GeriatríaMexico CityMéxico
  3. 3.Geriatric Epidemiology Research Department at Instituto Nacional de GeriatríaMexico CityMéxico

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