Association of vitamin D related information from a telephone interview with 25-hydroxyvitamin D

Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology
Harleen SahotaJulia A Knight

Abstract

Vitamin D may be associated with reduced risks of several types of cancer, including colon, prostate, and breast. We examined the relationship between vitamin D-related questions administered in a telephone interview and serum 25-hydroxyvitamin D [25(OH)D]. Three hundred and eight eligible women were randomly selected from controls in a breast cancer case-control study. Questions pertaining to sun exposure and dietary sources of vitamin D over the previous 4 weeks were asked in both summer and winter. We assessed the association between questionnaire-derived items and 25(OH)D using multiple linear regression. There were 217 participating women, 203 in summer and 213 in winter. Models were adjusted for age, body mass index, and skin color. Number of days when more than 0.5 hour was spent outdoors per week ("7" versus "<7" beta = 11.12; P = 0.01), limb coverage ("no" beta = 24.90 and "partial" beta = 8.15 versus "yes"; P = 0.0001), and milk intake (glasses/wk; ">10" beta = 18.94, ">5-10" beta = 9.16, and "1-5" beta = 7.90 versus "<1"; P = 0.02) best predicted 25(OH)D in the summer. The best predictors in the winter were sunlamp use ("yes" beta = 27.97 versus "no"; P = 0.01), milk intake (glasses/wk; ">10" beta = 14.54, ">5-10" be...Continue Reading

Citations

Jun 8, 2012·Human Genetics·Jessica Lasky-SuAugusto A Litonjua
Jun 19, 2012·Breast Cancer Research and Treatment·David W CesconPamela J Goodwin
Nov 17, 2009·Cancer Causes & Control : CCC·Julia A KnightReinhold Vieth
Nov 26, 2011·The Proceedings of the Nutrition Society·Augusto A Litonjua
Jun 22, 2010·American Journal of Epidemiology·Marjorie L McCulloughXiao-Ou Shu
Jun 22, 2010·American Journal of Epidemiology·Anne Zeleniuch-JacquotteSusan E Hankinson
Apr 15, 2009·Current Opinion in Allergy and Clinical Immunology·Augusto A Litonjua
Jan 1, 2012·Journal of Diabetes and Metabolic Disorders·Asal Ataie-JafariBagher Larijani
Sep 4, 2009·Journal of Oncology·Alan A ArslanEva Lundin
Aug 30, 2008·American Journal of Epidemiology·Kristina M BlackmoreJulia A Knight
Mar 11, 2015·Journal of Photochemistry and Photobiology. B, Biology·Lauren ShamHeather E Hanwell
May 27, 2017·American Journal of Epidemiology·Julia A KnightEsteban J Parra
Feb 16, 2020·International Journal of Environmental Research and Public Health·Kevin L'EspéranceAnita Koushik
Apr 16, 2010·The American Journal of Clinical Nutrition·Laura N AndersonJulia A Knight
May 24, 2013·The American Journal of Clinical Nutrition·Fatimah M YousefCynthia A Thomson
Feb 6, 2017·International Journal of Circumpolar Health·Sudaba MansuriAnthony J Hanley

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