Enhancing the capacity of food consumption surveys of short duration to estimate long term consumer-only intakes by combination with a qualitative food frequency questionnaire
作者:
J. Lambe,
J. Kearney,
C. Leclercrq,
D. Berardi,
H. F. J. Zunft,
S. Sulzer,
S. De Henauw,
M. De Volder,
C. J. E. Lamberg-Allardt,
M. U. M. Karkkainen,
A. Dunne,
M. J. Gibney,
期刊:
Food Additives & Contaminants
(Taylor Available online 2000)
卷期:
Volume 17,
issue 3
页码: 177-187
ISSN:0265-203X
年代: 2000
DOI:10.1080/026520300283432
出版商: Taylor & Francis Group
关键词: Food Additives Food Surveys Long Term Intakes
数据来源: Taylor
摘要:
In principle, a proper risk assessment for a food chemical requires that the time-frame for food chemical intake estimates matches the time-frame for the toxicological assessments upon which the safety statements (ADI, PTW I, etc.) are based. For food additives, the toxicological assessments are based on exposure over a lifetime. While food consumption data cannot be collected over the lifetimes of individuals, the information should reflect habitual intakes as closely as possible. This study investigated the possibility of combining a 3-day food diary with a food frequency questionnaire to estimate mean consumer-only food intakes comparable to estimates based on a 14-day diary. The study population consisted of 948 teenagers and analysis was based on 32 clearly defined foods. For 47% of the foods, the difference was ≤ 1g/day. When expressed as portion sizes, 56% of the foods showed differences representing <5% of an average portion and no food showed a difference >14% of an average portion. When between-method differences (portions/day) were plotted against the mean of the methods, the mean between-method difference was 0.02 (± 0.06) portions/ day with limits of agreement of -0.10 to 0.14. This preliminary investigation suggests that the combined 3-day diary and FFQ method provides comparable estimates of mean consumer only intakes to a 14-day diary. Therefore, a qualitative FFQ may be a useful adjunct to a food consumption survey of short duration if estimates of longer term food intakes are required.
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