Validity of a Self-administered Food Frequency Questionnaire for the Estimation of Acrylamide Intake in the Japanese Population: The JPHC FFQ Validation Study
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- Kotemori Ayaka
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center
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- Ishihara Junko
- Department of Food and Life Science, Azabu University
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- Nakadate Misako
- Division of Nutrition Science, Graduate School of Sagami Women’s University
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- Sawada Norie
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center
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- Iwasaki Motoki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center
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- Sobue Tomotaka
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University
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- Tsugane Shoichiro
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center
書誌事項
- 公開日
- 2018-12-05
- 資源種別
- journal article
- DOI
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- 10.2188/jea.je20170186
- 公開者
- 日本疫学会
この論文をさがす
説明
<p>Background: Acrylamide, a probable carcinogen to humans, forms during high temperature cooking. Dietary exposure to acrylamide among the Japanese population is unknown. We aimed to establish and validate a method to assess acrylamide exposure among the Japanese population using a food frequency questionnaire (FFQ) from the Japan Public Health Center-based prospective study.</p><p>Methods: Validation studies for the FFQ were conducted in 1994 (Cohort I, n = 215) and 1996 (Cohort II, n = 350). The 28-day dietary records (DRs) were collected over 1 year. The FFQ was distributed before and after DR collection. Data for acrylamide exposure were based on reported measurements in Japan, and calculations considered the cooking process for specific vegetables in a home setting. Spearman’s rank correlation and weighted kappa coefficients were calculated from energy-adjusted data.</p><p>Results: Mean acrylamide intake levels estimated from DRs for Cohorts I and II were 6.78 (standard deviation [SD], 3.89) µg/day and 7.25 (SD, 3.33) µg/day, and corresponding levels estimated from the FFQ were 7.03 (SD, 4.30) µg/day and 7.14 (SD, 3.38) µg/day, respectively. Deattenuated correlation coefficients for men and women were 0.54 and 0.48 in Cohort I and 0.40 and 0.37 in Cohort II, respectively. Weighted kappa coefficients were over 0.80 in all cases. The main contributing food groups from DRs were beverages, confectioneries, vegetables, potatoes and starches, and cereals.</p><p>Conclusions: High kappa values validate the use of FFQ in epidemiological studies. The marked contribution of cooked vegetables indicates the importance of considering household cooking methods in assessing acrylamide intake levels in the Japanese population.</p>
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ Ｅｐｉｄｅｍｉｏｌｏｇｙ
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Ｊｏｕｒｎａｌ ｏｆ Ｅｐｉｄｅｍｉｏｌｏｇｙ 28 (12), 482-487, 2018-12-05
日本疫学会
