Longitudinal changes in serum 25-hydroxyvitamin D in the Dallas Heart Study

Clinical Endocrinology
Sasan MirfakhraeeNaim Maalouf

Abstract

While the prevalence of vitamin D deficiency is well described in various populations, limited data are available regarding longitudinal variation in serum 25-hydroxyvitamin D concentrations. To evaluate the temporal trends in serum 25(OH)D, prevalence of vitamin D deficiency and factors influencing these trends. Adults enrolled in the Dallas Heart Study, a longitudinal, probability-based, multiethnic, population study in Dallas, Texas, USA. Prevalence of vitamin D deficiency and predictors of change in serum 25(OH)D. A total of 2045 participants had serum 25(OH)D measured on two occasions (2000-2002 and 2007-2009) at a median interval of 7 years. Serum 25(OH)D decreased (42.7-39.4 nmol/L, P<.001) and the prevalence of vitamin D deficiency [25(OH)D <50 nmol/L] increased significantly (60.6%-66.4%, P<.0001) despite vitamin D supplementation increasing over the interval (7.2%-23.0%; P<.0001). In a multivariable model adjusting for sex, race, BMI, age, season of blood draw, smoking and exercise, a greater decline in serum 25(OH)D was noted in men compared with women (-8.0 vs -3.5 nmol/L, P<.0001), in participants of Hispanic ethnicity vs White and Black ethnicity (P<.0001), in nonobese vs obese participants (-7.2 vs -4.0 nmol/L, P...Continue Reading

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Citations

May 8, 2020·The British Journal of Nutrition·Kazutoshi NakamuraKei Watanabe
Jun 13, 2019·Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology·Elizabeth LoehrerDavid C Christiani
Dec 15, 2020·European Journal of Clinical Nutrition·Julia KubiakRolf Jorde
Oct 26, 2021·Southern African Journal of HIV Medicine·Samuel MwangoHerculina S Kruger

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