Better Knowledge on Vitamin D and Calcium in Older People Is Associated with a Higher Serum Vitamin D Level and a Higher Daily Dietary Calcium Intake

Autor/inn/en	Oudshoorn, Christian; Hartholt, Klaas A.; van Leeuwen, Johannes P. T. M.; Colin, Edgar M.; van der Velde, Nathalie; van der Cammen, Tischa J. M.
Titel	Better Knowledge on Vitamin D and Calcium in Older People Is Associated with a Higher Serum Vitamin D Level and a Higher Daily Dietary Calcium Intake
Quelle	In: Health Education Journal, 71 (2012) 4, S.474-482 (9 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0017-8969
DOI	10.1177/0017896911406965
Schlagwörter	Knowledge Level; Older Adults; Correlation; Nutrition; Case Studies; Surveys; Residential Care; Questionnaires; Biochemistry; Intervention; Health Education + Suchen Sie Ihr Suchwort? Wissensbasis; Älterer Erwachsener; Korrelation; Ernährung; Case study; Fallstudie; Case Study; Survey; Umfrage; Befragung; Fragebogen; Biochemie; Gesundheitsaufklärung; Gesundheitsbildung; Gesundheitserziehung
Abstract	Objective: The objective of the present study was to examine knowledge on vitamin D and calcium in a cohort of older adults and to test the association between health knowledge, vitamin D status and dietary calcium intake. Methods: The participants of this cross-sectional survey consisted of 426 individuals (greater than or equal to 65 years), living in residential homes. Participants were tested for their knowledge on vitamin D and calcium using a standardized questionnaire. Serum 25-hydroxyvitamin D[subscript 3] (25(OH)D[subscript 3]) levels and dietary calcium intake were measured. Results: The mean serum 25(OH)D3 level was 39.1 (plus or minus 21.4) nmol/l and the mean daily dietary calcium intake was 826 (plus or minus 242) mg/day. Of the participants, only 38 per cent indicated that they knew or had heard of vitamin D. Participants overestimated their daily calcium intake. Better knowledge on vitamin D and calcium was associated with both higher vitamin D levels (P less than 0.0001) and a higher daily dietary calcium intake (P less than 0.0001). Conclusion: Given the poor knowledge on vitamin D and calcium and the observed associations, improving health knowledge could be a possible intervention to improve vitamin D status and calcium intake in older people. Further studies are needed to assess whether education will indeed lead to improvement of vitamin D levels and calcium intake in this age group. (Contains 1 figure and 4 tables.) (As Provided).
Anmerkungen	SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10