Predictive Equations for Estimation of Stature in Javanese Elderly People based on Knee Height, Am Span, and Sitting Height
| Main Authors: | Fatmah, Fatmah; Faculty of Public Health, University of Indonesia, Hardinsyah, Hardinsyah; Faculty of Public Health, University of Indonesia, Boedhihartono, Boedhihartono; Faculty of Public Health, University of Indonesia, Rahardjo, Tri Budi W.; Faculty of Public Health, University of Indonesia |
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| Format: | application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Journal of the Indonesian Medical Association
, 2008
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| Online Access: |
http://indonesia.digitaljournals.org/index.php/idnmed/article/view/921 |
Daftar Isi:
- The objective of this study was to develop a statistical model using knee height, arm span, sitting height, and other factors such as areas (urban-rural), sex, age, calcium intake at 25 and 55 years old, physical activity level, and socio-economic level (educational background, and working status aged 25 and 55 years. Heahhy Javanese elderly people (295 males, and 517 females), aged 55 to 85 years old in the six places (Surabaya, Magetan, Yogyakarta, Gunung Kidul, Semarang, and Wonogiri) participated in this cross sectional study. Standing height weight, knee height, arm span, sitting height, and bone mass density) were measured. Standing height is an ideal technique for estimating the stature of elderly people, but in some cases it cannot be measured. It can be estimated from prory indicators of stature. Linear regression analysis was carried out to derive predictive equations for estimation of stature with elderly height as the dependent variable and knee height, arm span, and sitting height as independent variables, stratified based on gender. The Chumlea equation tended to be over-estimate the stature of elderly men (2.78 cm), and elderly women (4.9 cm). In this study, arm span showed the stongest cotelation with standing height on elderly men (r=0.815), and elderly women (r=0.754). There was a significant difference of stature in urban and rural areas and across socio-economic level (p<0.05). Advancing age was associated with decreased mean of height, weight, arm span, and sitting height both on elderly male and female, but not on knee height (p<0.01). In conclusions arm span is more representatif to predict height on healthy Javanese elderly people than knee height and sitting height. The correlation cofficient of arm span to actual height was larger in elderly male than in female. It should be borne in mind that equation deived from taller stature populations (e.g. Chumlea from Caucasians ethnic) may be less accurate when applied to shorter stature populations. Keywords: height, knee height, arm span, sitting height, Chumlea