TY  - JOUR
AU  - Christensen, Sara E
AU  - Möller, Elisabeth
AU  - Bonn, Stephanie E
AU  - Ploner, Alexander
AU  - Wright, Antony
AU  - Sjölander, Arvid
AU  - Bälter, Olle
AU  - Lissner, Lauren
AU  - Bälter, Katarina
PY  - 2013
DA  - 2013/06/05
TI  - Two New Meal- and Web-Based Interactive Food Frequency Questionnaires: Validation of Energy and Macronutrient Intake
JO  - J Med Internet Res
SP  - e109
VL  - 15
IS  - 6
KW  - validity
KW  - reproducibility
KW  - food frequency questionnaire
KW  - Internet
KW  - weighed food record
KW  - doubly labeled water
KW  - adult
AB  - Background: Meal-Q and its shorter version, MiniMeal-Q, are 2 new Web-based food frequency questionnaires. Their meal-based and interactive format was designed to promote ease of use and to minimize answering time, desirable improvements in large epidemiological studies. Objective: We evaluated the validity of energy and macronutrient intake assessed with Meal-Q and MiniMeal-Q as well as the reproducibility of Meal-Q. Methods: Healthy volunteers aged 20-63 years recruited from Stockholm County filled out the 174-item Meal-Q. The questionnaire was compared to 7-day weighed food records (WFR; n=163), for energy and macronutrient intake, and to doubly labeled water (DLW; n=39), for total energy expenditure. In addition, the 126-item MiniMeal-Q was evaluated in a simulated validation using truncated Meal-Q data. We also assessed the answering time and ease of use of both questionnaires. Results: Bland-Altman plots showed a varying bias within the intake range for all validity comparisons. Cross-classification of quartiles placed 70%-86% in the same/adjacent quartile with WFR and 77% with DLW. Deattenuated and energy-adjusted Pearson correlation coefficients with the WFR ranged from r=0.33-0.74 for macronutrients and was r=0.18 for energy. Correlations with DLW were r=0.42 for Meal-Q and r=0.38 for MiniMeal-Q. Intraclass correlations for Meal-Q ranged from r=0.57-0.90. Median answering time was 17 minutes for Meal-Q and 7 minutes for MiniMeal-Q, and participants rated both questionnaires as easy to use. Conclusions: Meal-Q and MiniMeal-Q are easy to use and have short answering times. The ranking agreement is good for most of the nutrients for both questionnaires and Meal-Q shows fair reproducibility. 
SN  - 14388871
UR  - http://www.jmir.org/2013/6/e109/
UR  - https://doi.org/10.2196/jmir.2458
UR  - http://www.ncbi.nlm.nih.gov/pubmed/23739995
DO  - 10.2196/jmir.2458
ID  - info:doi/10.2196/jmir.2458
ER  -