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Target period, interview time, and fourth‐grade children's dietary recall accuracy
Author(s) -
Baxter Suzanne Domel,
Royer Julie A,
Guinn Caroline H,
Hardin James W,
Smith Albert F
Publication year - 2008
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.22.2_supplement.755
Subject(s) - evening , morning , recall , intrusion , demography , psychology , medicine , zoology , biology , cognitive psychology , physics , geochemistry , astronomy , sociology , geology
We investigated 4th‐grade children's dietary recall accuracy in 6 protocols created by crossing 2 target periods (previous day [PD]; prior 24 hours [24]) with 3 interview times (morning [M]; afternoon [A]; evening [E]). Each of 376 children (96% Black) was observed eating 2 school meals (breakfast, lunch) and interviewed to obtain a 24‐hour recall using 1 of 6 protocols with 62 children (½ boys) per protocol. We quantified accuracy of reporting school meals by calculating rates for omissions (items observed but unreported) and intrusions (items reported but unobserved); a measure of total inaccuracy combined errors for reporting items and amounts. For each measure, an analysis of variance was conducted with target period, interview time, their interaction, and sex in the model. There was an effect of target period on omission rates, intrusion rates, and total inaccuracy (all 3 p values < 0.0001); each was lower (better) for 24 than PD (mean omission rates: 24 = 46%, PD = 65%; mean intrusion rates: 24 = 27%, PD = 54%; mean total inaccuracy [in servings]: 24 = 5.4, PD = 7.5). There was an interaction of target period x interview time on omission rates (p = 0.0012), intrusion rates (p < 0.0001), and total inaccuracy (p = 0.0047); these were lowest for 24A and 24E interviews and highest for PDA and PDE interviews. Results illuminate the importance of target period and interview time for children's recall accuracy. Funded by R01 HL074358.