title: [Vitamin D insufficiency in Japanese adults].
abstract: Vitamin D insufficiency has recently drawn attention as a risk factor for osteoporosis. This paper evaluated vitamin D insufficiency in Japanese adults. The prevalence of vitamin D insufficiency, defined as serum 25-hydroxyvitamin D (25 [OH] D) concentrations less than 30 nmol/l, among independent community-dwelling elderly people was approximately five percent. Conversely, the prevalence of vitamin D insufficiency among frail, inactive elderly people with low levels of activities of daily living (ADL) was up to 50% greater. These results intimate that ADL may be an important determinant of vitamin D insufficiency. Overall findings highlight the need for measurement of serum 25 (OH) D to become a more common medical examination to detect vitamin D insufficiency in the elderly.
authors.affiliation: Niigata University Graduate School of Medical and Dental Sciences, Department of Community Preventive Medicine.
authors.forename: Kazutoshi
authors.initials: K
authors.lastname: Nakamura
mesh_terms: D000203:Activities of Daily Living; D044466:Asian People; D015415:Biomarkers / Q000097:blood; D006801:Humans; D007564:Japan / Q000453:epidemiology; D010024:Osteoporosis / Q000209:etiology; D015995:Prevalence; D012307:Risk Factors; D013472:Sunlight; D014807:Vitamin D / Q000008:administration & dosage / Q000031:analogs & derivatives / Q000097:blood; D014808:Vitamin D Deficiency / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy
chemical_list: D015415:Biomarkers; D014807:Vitamin D; C104450:25-hydroxyvitamin D