Validation of a food frequency questionnaire. II. Nutrients and biochemical markers
نویسندگان
چکیده
منابع مشابه
Development and Validation of a Food Frequency Questionnaire for Assessing Dietary Calcium in Children
Background and Objectives: This study aimed to develop and validate a food frequency questionnaire (FFQ) for measuring calcium intake in 9-13 years old children in Tehran, Iran. Materials and Methods: A 56-item FFQ containing main contributors of calcium in Iranian diet was designed. Criterion validity of the calcium specific FFQ was evaluated through comparing its result with five 24-h recall...
متن کاملBiochemical validation of a self-administered semi-quantitative food-frequency questionnaire.
The present study is a biochemical validation of a food-frequency questionnaire (FFQ) with optical reading, i.e. containing food portion photographs to help to assess quantities. Forty-four healthy subjects, non-smokers and not taking vitamin supplements, were recruited for the study. After completion of the questionnaire, subjects were asked to keep a 7 d weighed dietary record (7DR). Three 24...
متن کاملDevelopment and validation of a Semi-quantitative food frequency questionnaire among older people in north of Iran
Background: The study was conducted to assess reliability of modified semi-quantitative food frequency questionnaire (SQFFQ) as a part of the Amirkola Health and Aging Project (AHAP). Methods: The study was carried out in a sample of 200 men and women aged 60 years and older. A 138-item SQFFQ and two 24-hour dietary recalls were completed. The reliability of SQFFQ was evaluated by comparing ei...
متن کاملBiochemical Validation of the Older Australian’s Food Frequency Questionnaire Using Carotenoids and Vitamin E
BACKGROUND Validation of a food frequency questionnaire (FFQ) is important, as inaccurate and imprecise information may affect the association between dietary exposure and health outcomes. OBJECTIVE This study assessed the validity of the Older Australian's FFQ against plasma carotenoids and Vitamin E. METHODS A random subsample (n = 150) of 2420 participants in the Hunter Community Study, ...
متن کاملconstruction and validation of translation metacognitive strategy questionnaire and its application to translation quality
like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...
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ژورنال
عنوان ژورنال: Reproduction Nutrition Development
سال: 1997
ISSN: 0926-5287
DOI: 10.1051/rnd:19970332