Sentences with phrase «food frequency questionnaires for»

The researchers reviewed food frequency questionnaires for the years 1991 to 2001 and determined how often the participants consumed artificially - sweetened beverages.

Validation of a Food Frequency Questionnaire for Vitamin D and Calcium Intake in Healthy Female College Students

Not exact matches

Adherence was monitored with the use of food - frequency questionnaires during the study and was corroborated at the end of the study through the measurement of peanut in bed dust, an objective and previously validated surrogate for consumption.23, 24

In a linked editorial, Dr Kathryn Fitzgerald of John Hopkins School of Medicine, Baltimore, emphasises the caveats for an observational study of this kind which relies on food frequency questionnaires that are not fully able to describe different types of fat.

For both studies, dietary fibre intake was measured using Food Frequency Questionnaire responses.

All of the participants, which were patients of the University of Michigan Head and Neck Specialized Program of Research Excellence, were asked to track their intake of food, beverages and supplements for a year prior to diagnosis and a year following treatment using the Harvard Food Frequency Questionnafood, beverages and supplements for a year prior to diagnosis and a year following treatment using the Harvard Food Frequency QuestionnaFood Frequency Questionnaire.

In the questionnaire they were asked about consumption frequency and size of portions for 122 food groups and goods throughout a period of 3 months which included questions regarding fat intake from cooking, meat, dairy and reduced fat foods.

Questionnaires for food frequency were made use of every 4 years for assessing the habitual diet of individuals, asking how often, on average, each food was consumed in a standard portion size.

General Mills provided funding for coding of the food - frequency questionnaire completed by study participants.

Dietary data were collected with a 145 - item food - frequency questionnaire (FFQ), modified for the Australian diet and vernacular from an early Willett questionnaire (14).

In a subgroup of 1953 study participants who also completed a 24 - hour dietary - recall questionnaire on 2 nonconsecutive days, 33 the Spearman coefficient for the correlation between coffee consumption as assessed with this questionnaire and coffee consumption as assessed with the baseline food - frequency questionnaire was 0.80.

An optional «food frequency questionnaire» was added from 2004 to February 2013, and the MIND diet study looked at results for 923 volunteers.

Food groups were formed based on a semiquantitative food frequency questionnaire (12); for example, the whole - grain group was formed as the sum of the number of servings per week of dark bread, brown rice, whole - grain breakfast cereal, bran, wheat germ, and a miscellaneous whole - grain item (Food groups were formed based on a semiquantitative food frequency questionnaire (12); for example, the whole - grain group was formed as the sum of the number of servings per week of dark bread, brown rice, whole - grain breakfast cereal, bran, wheat germ, and a miscellaneous whole - grain item (food frequency questionnaire (12); for example, the whole - grain group was formed as the sum of the number of servings per week of dark bread, brown rice, whole - grain breakfast cereal, bran, wheat germ, and a miscellaneous whole - grain item (13).

Despite the measurement of key confounders in our analyses, the potential for residual confounding can not be ruled out, and although our food frequency questionnaire specified portion size, the assessment of diet using any method will have measurement error.

Dietary intake by food frequency questionnaire and odds ratios for coronary heart disease risk.

Participants completed a 145 - item food - frequency questionnaire (FFQ) designed for the WHI at baseline.

Development of a glycemic index database for food frequency questionnaires used in epidemiologic studies

When infants were 3 months of age, we conducted a food frequency questionnaire to test the hypothesis that the adolescent mothers in the intervention group would be more likely to adhere to feeding guidelines of limiting their infants» intake to breast milk, formula, or water for the first 4 to 6 months of life, compared with mothers in the control group.

For the 3 - month follow - up, mothers were contacted by telephone and asked to complete a food frequency questionnaire regarding their infant's dietary patterns.