TY - JOUR
T1 - Validation of a Dietary Vitamin D Questionnaire Using Multiple Diet Records and the Block 98 Health Habits and History Questionnaire in Healthy Postmenopausal Women in Northern California
AU - Hacker-Thompson, Andrea
AU - Schloetter, Monique
AU - Sellmeyer, Deborah E.
N1 - Funding Information:
FUNDING/SUPPORT: The study received funding from the California Dietetic Association Zellmer Grant and Grant Number ULI RR024131 from the National Center for Research Resources (NCCR), a component of the National Institutes of Health (NIH) and the NIH Roadmap for Medical Research. Its contents are solely the responsibility of the authors and do not necessarily represent the official view of the NCRR or the NIH. Information on NCRR is available at http://www.ncrr.nih.gov .
PY - 2012/3
Y1 - 2012/3
N2 - Vitamin D deficiency is common in older women and can negatively impact bone status. A simple method by which clinicians and researchers can evaluate a patient's vitamin D dietary intake could help identify individuals at risk for vitamin D deficiency. This study was done to validate a short dietary vitamin D questionnaire. Postmenopausal women (n=122), with a mean age of 63.9±7.8 years, completed a Brief Vitamin D Questionnaire (BVDQ), the Block Health History and Habits Questionnaire 1998 (BHHHQ98), a 3-day food record, and an evaluation of serum 25 hydroxyvitamin D (25[OH]D) levels. Data were analyzed using Pearson correlation coefficients, Wilcoxon signed ranks tests, and Bland-Altman analyses to compare the performance of the BVDQ to the BHHHQ98 and to the diet record. As assessed by the BVDQ, vitamin D intake averaged 178.7±112.3 IU per day, correlating well with the Block HHHQ98 (r=0.51, P<0.001) and the 3-day food record (r=0.43, P<0.001). Compared with the food record, both the BVDQ and the BHHHQ98 overestimated dietary vitamin D intake by less than 100 IU/day. The two questionnaires performed nearly identically at all levels of vitamin D intake. Serum 25(OH)D was not related to vitamin D intake as measured by either the BVDQ or the BHHHQ98, but did correlate weakly with vitamin D intake from the 3-day diet record (r=0.20, P=0.04). The Brief Vitamin D Questionnaire correlated well with the longer and more intense dietary assessment methods, making it a simple and accurate instrument for assessing vitamin D intake.
AB - Vitamin D deficiency is common in older women and can negatively impact bone status. A simple method by which clinicians and researchers can evaluate a patient's vitamin D dietary intake could help identify individuals at risk for vitamin D deficiency. This study was done to validate a short dietary vitamin D questionnaire. Postmenopausal women (n=122), with a mean age of 63.9±7.8 years, completed a Brief Vitamin D Questionnaire (BVDQ), the Block Health History and Habits Questionnaire 1998 (BHHHQ98), a 3-day food record, and an evaluation of serum 25 hydroxyvitamin D (25[OH]D) levels. Data were analyzed using Pearson correlation coefficients, Wilcoxon signed ranks tests, and Bland-Altman analyses to compare the performance of the BVDQ to the BHHHQ98 and to the diet record. As assessed by the BVDQ, vitamin D intake averaged 178.7±112.3 IU per day, correlating well with the Block HHHQ98 (r=0.51, P<0.001) and the 3-day food record (r=0.43, P<0.001). Compared with the food record, both the BVDQ and the BHHHQ98 overestimated dietary vitamin D intake by less than 100 IU/day. The two questionnaires performed nearly identically at all levels of vitamin D intake. Serum 25(OH)D was not related to vitamin D intake as measured by either the BVDQ or the BHHHQ98, but did correlate weakly with vitamin D intake from the 3-day diet record (r=0.20, P=0.04). The Brief Vitamin D Questionnaire correlated well with the longer and more intense dietary assessment methods, making it a simple and accurate instrument for assessing vitamin D intake.
KW - 25(OH)D
KW - Food frequency questionnaire
KW - Vitamin D
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U2 - 10.1016/j.jada.2011.08.043
DO - 10.1016/j.jada.2011.08.043
M3 - Article
C2 - 22896857
AN - SCOPUS:84857788878
SN - 2212-2672
VL - 112
SP - 419
EP - 423
JO - Journal of the Academy of Nutrition and Dietetics
JF - Journal of the Academy of Nutrition and Dietetics
IS - 3
ER -