Journal List > Korean J Nutr > v.45(5) > 1043953

Korean J Nutr. 2012 Oct;45(5):470-478. Korean.
Published online October 31, 2012.  https://doi.org/10.4163/kjn.2012.45.5.470
© 2012 The Korean Nutrition Society
Dietary factors affecting bone mineral density in Korean rural postmenopausal women
Jeong Sook Choe,1 Eun Mi Ahn,1 Sung Ok Kwon,2 Young Hee Park,1 and Jinyoung Lee1
1Agro-food Utilization Division, Rural Development of Administration, Suwon 441-853, Korea.
2Department of Food and Nutrition, Kyoung Hee University, Seoul 130-701, Korea.

To whom correspondence should be addressed. (Email: Swany@korea.kr )
Received June 26, 2012; Revised July 26, 2012; Accepted October 08, 2012.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Abstract

This study was conducted to investigate dietary factors, bone status, and bone loss in postmenopausal women in rural areas. A total of 189 women participated in the follow-up study after two years. Radius, Tibia, and Phalanx SOS (Speed of Sound) was measured on two occasions 2 years apart by ultra-sonic-metry, and % body fat was measured by bioelectrical impedance analysis at the baseline and after 2years. Dietary intake data were collected 4 times at different season by 24-hour recall method, and then calculated as average. Bone density of radius decreased by 4.2% during the two year period. When the subjects were divided into three groups, by bone decline level during two years, the lowest bone loss group had higher potassium and vegetable intake than other groups. Age and calcium intakes showed significant correlation with bone decline rate at tibia. In multiple regressions, the baseline SOS, vitamin A, vegetables and eggs intakes were found to be significant factors for tibia bone decline. In conclusion, dietary factors, such as higher vegetable intake, seem to affect the changes in bone mineral density in more favorable way. Therefore, efforts are needed to enhance the access to nutritional care for rural elderly postmenopausal women.

Keywords: Postmenopausal women; bone mineral density; radius; nutrient density; food intake

Figures


Fig. 1
Flowchart of the study. *: Quantitative Ultrasound
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Fig. 2
Bone loss (%) over 2 years by age-groups.
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Tables


Table 1
Body composition of subjects at baseline and after 2 years
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Table 2
Values of bone SOS (m/s) measured by ultrasound in each year
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Table 3
Mean bone loss (%) by tertile of bone loss (%)
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Table 4
Age, menopausal age, duration after menopause and number of birth by tertile of bone loss at radius
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Table 5
Body composition by tertile of bone loss at radius
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Table 6
Energy and nutrient density by tertile of bone loss (%) at radius and tibia
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Table 7
Food intake by tertile of bone loss (%) at radius and tibia
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Table 8
Partial correlations between bone loss (%) and related factors
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Table 9
Partial correlations between bone loss(%) at tibia and related factors by age-groups
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Table 10
Multiple regression analysis with baseline bone SOS, and nutrient density and food intake as independent variables and bone loss (%) at radius
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Notes

This work was supported by National Academy of Agricultural Science, Rural Development of Administration, Republic of Korea.

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