Journal
JOURNAL OF THE AMERICAN COLLEGE OF NUTRITION
Volume 27, Issue 2, Pages 280-286Publisher
AMER COLLEGE NUTRITION
DOI: 10.1080/07315724.2008.10719701
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Funding
- NINR [R44NR008443]
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Objective: To evaluate the capability of DietMatePro, a PDA-based dietary assessment program, to monitor dietary intake and to improve adherence to a dietary regimen. Design: Randomized controlled trial. Subjects. Overweight and obese (Body Mass Index (BMI) 25-40) participants without dietary restrictions. Intervention: Participants (n = 174) were randomized to record usual dietary intake using either DietMatePro or a paper food diary for one week to compare concordance with 24-hr recall. At the week 1 visit, participants were individually counseled to follow the diet recommendations of the Ornish Prevention Diet for three weeks and continue monitoring food intake using the assigned method to estimate adherence to the intervention by monitoring condition. Outcome Measures: Spearman correlations between week I 24-hr recall and the assigned recording method were compared to assess validity. Mean pre-post changes in intake measured by 24-hr recall were compared according to monitoring condition to measure adherence to the Ornish diet. Results: Correlations of energy and nutrient values reported on the food label ranged from 0.41 to 0.71 for the DietMatePro condition versus 0.63 to 0.83 for the paper-based diary. Diet adherence was higher among DietMatePro (43%) compared to the paper diary (28%) group (p = 0.039). Conclusions/Applications: DietMatePro does not appear to produce more valid data than paper-based approaches. DietMatePro may improve adherence to dietary regimens compared to paper-based methods.
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