Document Detail

Serum 25-hydroxyvitamin D levels in active women of middle and advanced age in a rural community in Japan.
MedLine Citation:
PMID:  10575663     Owner:  NLM     Status:  MEDLINE    
There have been few epidemiologic studies on vitamin D status in Asians. The purpose of this study was to investigate the 25-hydroxyvitamin D (25[OH]D) levels in active women of middle and advanced age in Japan. We targeted 236 women who participated in an annual health check-up program in September 1997. Among them, 160 women were examined. Serum 25(OH)D2 and 25(OH)D3 levels were determined with high-performance liquid chromatography. In addition, the study included survey questions regarding age, body weight and height, occupation, use of skin protection, clinical and reproductive histories, and lifestyles. The average age was 65.6 y (SD = 8.3). The mean concentrations of 25(OH)D2 and 25(OH)D3 were 0.5 (SD = 3.2) nmol/L and 78.3 (SD = 17.8) nmol/L, respectively. None of the subjects showed hypovitaminosis D (25[OH]D < 37.0 nmol/L). Concentrations of 25(OH)D3 did not change with age (r = -0.079, P = 0.32), nor did other variables associated with 25(OH)D3 concentrations except for "engaging in farming" (P = 0.03) in the occupational category. These findings indicate that 25(OH)D levels in active middle- and advanced-aged women in Japan have appropriate vitamin-D status. Studies to elucidate and assess the dietary intake of vitamin D in Japanese women can be of further benefit.
K Nakamura; M Nashimoto; Y Hori; K Muto; M Yamamoto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Nutrition (Burbank, Los Angeles County, Calif.)     Volume:  15     ISSN:  0899-9007     ISO Abbreviation:  Nutrition     Publication Date:    1999 Nov-Dec
Date Detail:
Created Date:  1999-12-10     Completed Date:  1999-12-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8802712     Medline TA:  Nutrition     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  870-3     Citation Subset:  IM    
Department of Hygiene and Preventive Medicine, Niigata University School of Medicine, Japan.
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MeSH Terms
Aged, 80 and over
Aging / blood
Body Height
Body Weight
Calcifediol / blood*
Chromatography, High Pressure Liquid
Life Style
Middle Aged
Reference Values
Regression Analysis
Rural Population*
Sunscreening Agents
Reg. No./Substance:
0/Sunscreening Agents; 19356-17-3/Calcifediol

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