Food Photography Is Not an Accurate Measure of Energy Intake in Obese, Pregnant Women
| Autor: | Abby D. Altazan, Jasper Most, Corby K. Martin, Leanne M. Redman, Elizabeth F. Sutton, Loren E Cain, Porsha M. Vallo, Linda Anne Gilmore, Jeffrey H. Burton |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Cross-sectional study Population Medicine (miscellaneous) 030209 endocrinology & metabolism Doubly labeled water Diet Records Body Mass Index 03 medical and health sciences Food Preferences 0302 clinical medicine Pregnancy Environmental health Weight management Photography Medicine Humans 030212 general & internal medicine Obesity Data reporting education Meals Methodology and Mathematical Modeling education.field_of_study Nutrition and Dietetics business.industry Body Weight Reproducibility of Results Water Feeding Behavior medicine.disease Mobile Applications Pregnancy Complications Cross-Sectional Studies Body Composition Female Self Report Smartphone Snacks business Energy Intake Energy Metabolism Body mass index |
| Zdroj: | The Journal of nutrition. 148(4) |
| ISSN: | 1541-6100 0195-4342 |
| Popis: | BACKGROUND: To improve weight management in pregnant women, there is a need to deliver specific, data-based recommendations on energy intake. OBJECTIVE: This cross-sectional study evaluated the accuracy of an electronic reporting method to measure daily energy intake in pregnant women compared with total daily energy expenditure (TDEE). METHODS: Twenty-three obese [mean ± SEM body mass index (kg/m(2)): 36.9 ± 1.3] pregnant women (aged 28.3 ±1.1 y) used a smartphone application to capture images of their food selection and plate waste in free-living conditions for ≥6 d in early (13–16 wk) and late (35–37 wk) pregnancy. Energy intake was evaluated by the smartphone application SmartIntake and compared with simultaneous assessment of TDEE obtained by doubly labeled water. Accuracy was defined as reported energy intake compared with TDEE (percentage of TDEE). Ecological momentary assessment prompts were used to enhance data reporting. Two-one–sided t tests for the 2 methods were used to assess equivalency, which was considered significant when accuracy was >80%. RESULTS: Energy intake reported by the SmartIntake application was 63.4% ± 2.3% of TDEE measured by doubly labeled water (P = 1.00). Energy intake reported as snacks accounted for 17% ± 2% of reported energy intake. Participants who used their own phones compared with participants who used borrowed phones captured more images (P = 0.04) and had higher accuracy (73% ± 3% compared with 60% ± 3% of TDEE; P = 0.01). Reported energy intake as snacks was significantly associated with the accuracy of SmartIntake (P = 0.03). To improve data quality, excluding erroneous days of likely underreporting ( |
| Databáze: | OpenAIRE |
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