A Validation Study Concerning the Effects of Interview Content, Retention Interval, and Grade on Children's Recall Accuracy for Dietary Intake and/or Physical Activity - 25/11/14
, David B. Hitchcock, PhD, Caroline H. Guinn, RD, LD, Kate K. Vaadi, RD, LD, Megan P. Puryear, RD, LD, Julie A. Royer, MSPH, Kerry L. McIver, PhD, Marsha Dowda, DrPH, Russell R. Pate, PhD, Dawn K. Wilson, PhDAbstract |
Background |
Practitioners and researchers are interested in assessing children's dietary intake and physical activity together to maximize resources and minimize subject burden.
Objective |
Our aim was to investigate differences in dietary and/or physical activity recall accuracy by content (diet only; physical activity only; diet and physical activity), retention interval (same-day recalls in the afternoon; previous-day recalls in the morning), and grade (third; fifth).
Design |
Children (n=144; 66% African American, 13% white, 12% Hispanic, 9% other; 50% girls) from four schools were randomly selected for interviews about one of three contents. Each content group was equally divided by retention interval, each equally divided by grade, each equally divided by sex. Information concerning diet and physical activity at school was validated with school-provided breakfast and lunch observations, and accelerometry, respectively. Dietary accuracy measures were food-item omission and intrusion rates, and kilocalorie correspondence rate and inflation ratio. Physical activity accuracy measures were absolute and arithmetic differences for moderate to vigorous physical activity minutes.
Statistical analyses performed |
For each accuracy measure, linear models determined effects of content, retention interval, grade, and their two-way and three-way interactions; ethnicity and sex were control variables.
Results |
Content was significant within four interactions: intrusion rate (content×retention-interval×grade; P=0.0004), correspondence rate (content×grade; P=0.0004), inflation ratio (content×grade; P=0.0104), and arithmetic difference (content×retention-interval×grade; P=0.0070). Retention interval was significant for correspondence rate (P=0.0004), inflation ratio (P=0.0014), and three interactions: omission rate (retention-interval×grade; P=0.0095), intrusion rate, and arithmetic difference (both already mentioned). Grade was significant for absolute difference (P=0.0233) and five interactions mentioned. Content effects depended on other factors. Grade effects were mixed. Dietary accuracy was better with same-day than previous-day retention interval.
Conclusions |
Results do not support integrating dietary intake and physical activity in children's recalls, but do support using shorter rather than longer retention intervals to yield more accurate dietary recalls. Additional validation studies need to clarify age effects and identify evidence-based practices to improve children's accuracy for recalling dietary intake and/or physical activity.
Le texte complet de cet article est disponible en PDF.Keywords : Children, Dietary recall, Physical activity, Recall accuracy, School
Plan
| STATEMENT OF POTENTIAL CONFLICT OF INTEREST S. D. Baxter's current and past research has been funded externally by competitive grants from the National Institutes of Health and the US Department of Agriculture. She has served as a grant reviewer for the National Institutes of Health and the Centers for Disease Control and Prevention. She is on the Board of Editors for the Journal of the Academy of Nutrition and Dietetics. D. B. Hitchcock's research has been funded by the South Carolina Department of Education and the University of South Carolina Research and Productivity Program. R. R. Pate's current and past research has been funded externally by competitive grants from the National Institutes of Health and the Centers for Disease Control and Prevention. He has served as a grant reviewer for the National Institutes of Health and the Centers for Disease Control and Prevention. He is on the Board of Editors for the Archives of Pediatric and Adolescent Medicine, Childhood Obesity, and Exercise and Sport Sciences Reviews. D. K. Wilson's current and past research has been funded externally by competitive grants from the National Institutes of Health and the Centers for Disease Control and Prevention. She has served as a grant reviewer for the National Institutes of Health. She is on the Board of Editors for Health Psychology and Ethnicity and Disease. No potential conflicts of interest were reported by the remaining authors. |
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| FUNDING/SUPPORT This research was supported by competitive grant R21HL093406 (with S. D. Baxter and R. R. Pate as Co-Principal Investigators) from the National Heart, Lung, and Blood Institute of the National Institutes of Health. The content of this article is solely the responsibility of the authors and does not necessarily represent the official views of the National Heart, Lung, and Blood Institute or the National Institutes of Health. |
Vol 114 - N° 12
P. 1902-1914 - décembre 2014 Retour au numéro
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