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식사 전후의 사진 비교를 통한 스마트폰 앱의 영양소섭취량 타당도 평가

Validation of nutrient intake of smartphone application through comparison of photographs before and after meals

Journal of Nutrition and Health 2020년 53권 3호 p.319 ~ 328
이혜진, 김은빈, 김수현, 임하은, 박영미, 강준호, 김희원, 김진호, 박웅양, 박성진, 김진기, 양윤정,
소속 상세정보
이혜진 ( Lee Hye-Jin ) - Dongduk Women’s University Graduate School of Public Health Department of Clinical Nutrition
김은빈 ( Kim Eun-Bin ) - Dongduk Women’s University Graduate School of Public Health Department of Clinical Nutrition
김수현 ( Kim Su-Hyeon ) - Dongduk Women’s University Graduate School of Public Health Department of Clinical Nutrition
임하은 ( Lim Ha-Eun ) - Dongduk Women’s University School of Natural Science Department of Food and Nutrition
박영미 ( Park Yeong-Mi ) - Dongduk Women’s University School of Natural Science Department of Food and Nutrition
강준호 ( Kang Joon-Ho ) - Samsung Medical Center Samsung Genome Institute
김희원 ( Kim Hee-Won ) - Samsung Medical Center Samsung Genome Institute
김진호 ( Kim Jin-Ho ) - Samsung Medical Center Samsung Genome Institute
박웅양 ( Park Woong-Yang ) - Samsung Medical Center Samsung Genome Institute
박성진 ( Park Seong-Jin ) - Samsung Advanced Institute of Technology Machine Learning Lab
김진기 ( Kim Jin-Ki ) - Samsung Advanced Institute of Technology Machine Learning Lab
양윤정 ( Yang Yoon-Jung ) - Dongduk Women’s University School of Natural Science Department of Food and Nutrition

Abstract


Purpose: This study was conducted to evaluate the validity of the Gene-Health application in terms of estimating energy and macronutrients.

Methods: The subjects were 98 health adults participating in a weight-control intervention study. They recorded their diets in the Gene-Health application, took photographs before and after every meal on the same day, and uploaded them to the Gene-Health application. The amounts of foods and drinks consumed were estimated based on the photographs by trained experts, and the nutrient intakes were calculated using the CAN-Pro 5.0 program, which was named ‘Photo Estimation’. The energy and macronutrients estimated from the Gene-Health application were compared with those from a Photo Estimation. The mean differences in energy and macronutrient intakes between the two methods were compared using paired t-test.

Results: The mean energy intakes of Gene-Health and Photo Estimation were 1,937.0 kcal and 1,928.3 kcal, respectively. There were no significant differences in intakes of energy, carbohydrate, fat, and energy from fat (%) between two methods. The protein intake and energy from protein (%) of the Gene-Health were higher than those from the Photo Estimation. The energy from carbohydrate (%) for the Photo Estimation was higher than that of the Gene-Health. The Pearson correlation coefficients, weighted Kappa coefficients, and adjacent agreements for energy and macronutrient intakes between the two methods ranged from 0.382 to 0.607, 0.588 to 0.649, and 79.6% to 86.7%, respectively.

Conclusion: The Gene-Health application shows acceptable validity as a dietary intake assessment tool for energy and macronutrients. Further studies with female subjects and various age groups will be needed.

키워드

smart phone; mobile application; validation study; nutrition assessment

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