PMID- 23286734 OWN - NLM STAT- MEDLINE DCOM- 20141118 LR - 20230830 IS - 1475-2727 (Electronic) IS - 1368-9800 (Print) IS - 1368-9800 (Linking) VI - 17 IP - 2 DP - 2014 Feb TI - Relative validity of the Children's Eating Habits Questionnaire-food frequency section among young European children: the IDEFICS Study. PG - 266-76 LID - 10.1017/S1368980012005368 [doi] AB - OBJECTIVE: To compare, specifically by age group, proxy-reported food group estimates obtained from the food frequency section of the Children's Eating Habits questionnaire (CEHQ-FFQ) against the estimates of two non-consecutive 24 h dietary recalls (24-HDR). DESIGN: Estimates of food group intakes assessed via the forty-three-food-group CEHQ-FFQ were compared with those obtained by a computerized 24-HDR. Agreement on frequencies of intakes (equal to the number of portions per recall period) between the two instruments was examined using crude and de-attenuated Pearson's correlation coefficients, cross-classification analyses, weighted kappa statistics (kappa w) and Bland-Altman analysis. SETTING: Kindergartens/schools from eight European countries participating in the IDEFICS (Identification and prevention of Dietary- and lifestyle-induced health EFfects In Children and infantS) Study cross-sectional survey (2007-2008). SUBJECTS: Children aged 2-9 years (n 2508, 50.4% boys). RESULTS: The CEHQ-FFQ provided higher intake estimates for most of the food groups than the 24-HDR. De-attenuated Pearson correlation coefficients ranged from 0.01 (sweetened fruit) to 0.48 (sweetened milk) in children aged 2-<6 years (mean = 0.25) and from 0.01 (milled cereal) to 0.44 (water) in children aged 6-9 years (mean = 0.23). An average of 32% and 31% of food group intakes were assigned to the same quartile in younger and older children, respectively, and classification into extreme opposite quartiles was