Association between self-reported sleep duration and serum vitamin D level in elderly Korean adults.

Abstract

OBJECTIVES To investigate the association between self-reported sleep duration and serum vitamin D level in elderly Korean adults. DESIGN Cross-sectional data analysis. SETTING Korean National Health and Nutrition Examination Survey 2010. PARTICIPANTS Noninstitutionalized adults aged 60 to 80 (N = 1,614). MEASUREMENTS The confounding variables were… (More)
DOI: 10.1111/jgs.13148

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