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Estimation of height in elderly Japanese using region‐specific knee height equations
Author(s) -
Knous Barbara Lohse,
Arisawa Masako
Publication year - 2002
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/ajhb.10035
Subject(s) - hum , medicine , linear regression , knee flexion , elderly people , regression analysis , demography , tape measure , physical therapy , mathematics , gerontology , statistics , geometry , art , sociology , performance art , art history
Two knee height equations to predict standing height of Japanese elderly were cross‐validated with Joetsu City elders. One equation was derived with Hawaiian residents of Japanese ancestry and the other with elders from the Kumamoto Prefecture in Japan. Subjects included 40 men and 39 women free‐dwelling, healthy elders with mean ages of 68.0 ± 2.2 years and 68.0 ± 2.7 years, respectively. Heights of the subjects were representative of Japanese elderly. Experienced nurses, trained to measure knee height, also measured standing height with an automatic stadiometer. A pilot study refined measurement skills. Differences between actual and predicted heights for both equations were significant. Multiple linear regression was used to derive knee height equations specific for elderly males and females living in Joetsu City: women, 63.06 + (2.38 × knee height in cm) −(0.34 × age in years); men, 71.16 + (2.61 × knee height in cm) ‐ (0.56 × age in years). Geographic‐specific knee height equations for Japanese elderly and cross‐validation with other locations are suggested to facilitate the accurate use of knee height in nutritional assessment of Japanese elders. Am. J. Hum. Biol. 14:300–307, 2002. © 2002 Wiley‐Liss, Inc.