Relative validity and reliability of a food frequency questionnaire in youth with type 1 diabetes
Published Date:Mar 28 2014
Source:Public Health Nutr. 18(3):428-437.
Adolescent Nutritional Physiological Phenomena
Child Nutritional Physiological Phenomena
Diabetes Mellitus, Type 1
Food Frequency Questionnaire Validation
Interviews As Topic
Reproducibility Of Results
Statistics As Topic
Surveys And Questionnaires
Pubmed Central ID:PMC4353637
Funding:00097/PHS HHS/United States
1U18DP002709/DP/NCCDPHP CDC HHS/United States
200-2010-35171/PHS HHS/United States
5R01DK077949/DK/NIDDK NIH HHS/United States
DP-05-069/DP/NCCDPHP CDC HHS/United States
DP-10-001/DP/NCCDPHP CDC HHS/United States
R01 DK077949/DK/NIDDK NIH HHS/United States
U01 DP000244/DP/NCCDPHP CDC HHS/United States
U01 DP000245/DP/NCCDPHP CDC HHS/United States
U01 DP000246/DP/NCCDPHP CDC HHS/United States
U01 DP000248/DP/NCCDPHP CDC HHS/United States
U01 DP000250/DP/NCCDPHP CDC HHS/United States
U01 DP000254/DP/NCCDPHP CDC HHS/United States
U18DP000247-06A1/DP/NCCDPHP CDC HHS/United States
U18DP002708-01/DP/NCCDPHP CDC HHS/United States
U18DP002710-01/DP/NCCDPHP CDC HHS/United States
U18DP002714/DP/NCCDPHP CDC HHS/United States
U48/CCU419249/PHS HHS/United States
U48/CCU519239/PHS HHS/United States
U48/CCU819241-3/PHS HHS/United States
U48/CCU919219/PHS HHS/United States
U58/CCU019235-4/PHS HHS/United States
U58CCU919256/PHS HHS/United States
UO1 DP000247/DP/NCCDPHP CDC HHS/United States
To evaluate the relative validity and reliability of the SEARCH food frequency questionnaire (FFQ) that was modified from the Block Kids Questionnaire.
Study participants completed the 85-item FFQ twice plus three 24-hour dietary recalls within one month. We estimated correlations between frequencies obtained from participants with true usual intake for food groups and nutrients, using a two-part model for episodically-consumed foods and measurement error adjustment.
The multi-center SEARCH for Diabetes in Youth Nutrition Ancillary Study.
A subgroup of 172 participants aged 10 - 24 years with type 1 diabetes.
The mean correlations adjusted for measurement error of food groups and nutrients between FFQ and true usual intake were 0.41 and 0.38, respectively, with 57% of the food groups and 70% of the nutrients exhibiting correlations >0.35. Correlations were high for low-fat dairy (0.80), sugar-sweetened beverages (0.54), cholesterol (0.59) and saturated fat (0.51), while correlations were poor for high fiber bread and cereal (0.16) and folate (0.11). Reliability of FFQ intake based on two FFQ administrations was also reasonable with 54% of Pearson correlation coefficients ≥ 0.5. Reliability was high for low fat dairy (0.7), vegetables (0.6), carbohydrates, fiber, folate and vitamin C (all 0.5), but less than desirable for low fat poultry and high fiber bread, cereal, rice and pasta (0.2-0.3).
While there is some room for improvement, our findings suggest that the SEARCH FFQ performs quite well for the assessment of many nutrients and food groups in a sample of youth with type 1 diabetes.
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