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 recalls...

the iranian food consumption program (ifcp), a unique program in iran was developed to aim accurate calculation of nutrient intakes in relation to heart health investigation released in isfahan cardiovascular research center in march 1998 for the first time. the new versions came out along changes in computer technology. this interview-based program is designed to gather data through designed q...

This study evaluated the reliability and validity of a Belgian computerized questionnaire to measure at intake. A total of 86 adults completed a 48-item computerized fat intake questionnaire, subseuently kept a 7-day diet record, and finally completed the questionnaire again. For validity, a Pearson orrelation of 0.67 for total fat intake and of 0.60 for percent energy from fat were found betwe...

PRIMARY OBJECTIVE To provide, for the first time, the calculated nutritional composition of 32 composite dishes commonly consumed in Barbados to enable dietary intake to be calculated from a Quantitative Food Frequency Questionnaire developed specifically for this population to determine associations between diet and risk of prostate and breast cancer. METHODS AND PROCEDURES Weighed recipes w...

BACKGROUND Guam is a US territory in the western Pacific with a diverse population that includes understudied ethnic groups such as Chamorros and Filipinos. A food frequency questionnaire (FFQ) to estimate dietary intake was needed to facilitate studies of diet and health among adults living in Guam. OBJECTIVE To develop and validate an FFQ to assess dietary intake over a 1-year period among ...

To assess the effect of an antenatal nutrition programme designed specifically for the local population, questionnaires on nutrition knowledge, attitudes to healthier eating and 4 d diet diaries were completed by women attending routine antenatal clinics. Women who received the nutrition education programme were allocated into an Intervention Education Group whilst those women who did not were ...

It is not currently known how dietary assessment in older persons is affected by cognition. In a 1997-2000 study, the authors assessed the validity and reproducibility of a modified Harvard self-administered food frequency questionnaire (SFFQ) among 118 Black and 114 White randomly selected participants, aged 68-99 years, of the Chicago Health and Aging Project. Participants completed multiple ...

The authors consider whether semiquantitative food frequency questionnaires can be used to survey a population to estimate the distribution of usual intake. They take as an assumption that, if they were possible to obtain, the mean of many food records or recalls would be an accurate representation of an individual's usual diet. They then assume that nutrient intake as measured by a questionnai...

INTRODUCTION Biomarkers are a good choice to be used in the validation of food frequency questionnaire due to the independence of their random errors. OBJECTIVE To assess the validity of the potassium and sodium intake estimated using the Food Frequency Questionnaire ELSA-Brasil. SUBJECTS/METHODS A subsample of participants in the ELSA-Brasil cohort was included in this study in 2009. Sodiu...