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- Title
Using Wearable Cameras to Assess Foods and Beverages Omitted in 24 Hour Dietary Recalls and a Text Entry Food Record App.
- Authors
Chan, Virginia; Davies, Alyse; Wellard-Cole, Lyndal; Lu, Silvia; Ng, Hoi; Tsoi, Lok; Tiscia, Anjali; Signal, Louise; Rangan, Anna; Gemming, Luke; Allman-Farinelli, Margaret
- Abstract
Technology-enhanced methods of dietary assessment may still face common limitations of self-report. This study aimed to assess foods and beverages omitted when both a 24 h recall and a smartphone app were used to assess dietary intake compared with camera images. For three consecutive days, young adults (18–30 years) wore an Autographer camera that took point-of-view images every 30 seconds. Over the same period, participants reported their diet in the app and completed daily 24 h recalls. Camera images were reviewed for food and beverages, then matched to the items reported in the 24 h recall and app. ANOVA (with post hoc analysis using Tukey Honest Significant Difference) and paired t-test were conducted. Discretionary snacks were frequently omitted by both methods (p < 0.001). Water was omitted more frequently in the app than in the camera images (p < 0.001) and 24 h recall (p < 0.001). Dairy and alternatives (p = 0.001), sugar-based products (p = 0.007), savoury sauces and condiments (p < 0.001), fats and oils (p < 0.001) and alcohol (p = 0.002) were more frequently omitted in the app than in the 24 h recall. The use of traditional self-report methods of assessing diet remains problematic even with the addition of technology and finding new objective methods that are not intrusive and are of low burden to participants remains a challenge.
- Subjects
MEMORY; STATISTICS; SNACK foods; BEVERAGES; ANALYSIS of variance; FAT content of food; NUTRITIONAL assessment; MOBILE apps; SELF-evaluation; INGESTION; WEARABLE technology; SMARTPHONES; WATER; CONDIMENTS; COMPARATIVE studies; T-test (Statistics); DAIRY products; PHOTOGRAPHY; DESCRIPTIVE statistics; DATA analysis; ALCOHOLS (Chemical class)
- Publication
Nutrients, 2021, Vol 13, Issue 6, p1806
- ISSN
2072-6643
- Publication type
Article
- DOI
10.3390/nu13061806