Biomarkers of Dietary Intake Are Correlated with Corresponding Measures from Repeated Dietary Recalls and Food-Frequency Questionnaires in the Adventist Health Study-2
| Autor: | Joan Sabaté, Gary E. Fraser, W. Lawrence Beeson, Susanne M. Henning, Jing Fan, Hannelore Bennett, Ella Haddad, Karen Jaceldo-Siegl, Synnove F. Knutsen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Vitamin 030109 nutrition & dietetics Nutrition and Dietetics business.industry Cruciferous vegetables Vitamin E medicine.medical_treatment Medicine (miscellaneous) Urine Isoflavones 03 medical and health sciences chemistry.chemical_compound chemistry Environmental health Cohort Medicine business Body mass index Cohort study |
| Zdroj: | The Journal of Nutrition. 146:586-594 |
| ISSN: | 0022-3166 |
| DOI: | 10.3945/jn.115.225508 |
| Popis: | Background Accurate assessment of diet in study populations is still a challenge. Some statistical strategies that use biomarkers of dietary intake attempt to compensate for the biasing effects of reporting errors. Objective The objective was to correlate biomarkers of dietary intake with 2 direct measures of dietary intake. Methods Subjects provided repeated 24-h dietary recalls and 2 food-frequency questionnaires (FFQs) separated by ∼3 y. Correlations between biomarkers and reported dietary intakes as measured by the recalls and FFQs were de-attenuated for within-person variability. The Adventist Health Study-2 (AHS-2) has a large database of biomarkers of dietary intake (blood, urine, adipose tissue) from a calibration study (909 analytic subjects) representing the cohort. Participants were black and non-black Adventists in the United States and Canada. Results Dietary items with higher-valued de-attenuated correlations (≥0.50) between biomarkers and recalls included some fatty acids (FAs), the non-fish meats, fruit (non-black subjects), some carotenoids, vitamin B-12 (non-black subjects), and vitamin E. Moderately valued correlations (0.30-0.49) were found for very long chain ω-3 (n-3) FAs, some carotenoids, folate, isoflavones, cruciferous vegetables, fruit (black subjects), and calcium. The highest correlation values in non-black and black subjects were 0.69 (urinary 1-methyl-histidine and meat consumption) and 0.72 (adipose and dietary 18:2 ω-6), respectively. Correlations comparing biomarkers with recalls were generally similar for black and non-black subjects, but correlations between biomarkers and the FFQ were slightly lower than corresponding recall correlations. Correlations between biomarkers and a single FFQ estimate (the usual cohort situation) were generally much lower. Conclusions Many biomarkers that have relatively high-valued correlations with dietary intake were identified and were usually of similar value in black and non-black subjects. These may be used to correct effects of dietary measurement errors in the AHS-2 cohort, and in some cases they also provide evidence supporting the validity of the dietary data. |
| Databáze: | OpenAIRE |
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