Validation of a Smartphone Image-Based Dietary Assessment Method for Pregnant Women

被引:51
作者
Ashman, Amy M. [1 ,2 ,3 ]
Collins, Clare E. [1 ,2 ]
Brown, Leanne J. [4 ]
Rae, Kym M. [3 ,4 ,5 ]
Rollo, Megan E. [1 ,2 ]
机构
[1] Univ Newcastle, Fac Hlth & Med, Sch Hlth Sci, Univ Dr,Callaghan 2308, Callaghan, NSW 2308, Australia
[2] Univ Newcastle, Fac Hlth & Med, Prior Res Ctr Phys Activ & Nutr, Univ Dr,Callaghan 2308, Callaghan, NSW 2308, Australia
[3] Univ Newcastle, Fac Hlth & Med, Gomeroi gaaynggal Ctr, 2 1 Hinkler St, Tamworth, NSW 2340, Australia
[4] Univ Newcastle, Fac Hlth & Med, Dept Rural Hlth, 114-148 Johnston St, Tamworth, NSW 2340, Australia
[5] Univ Newcastle, Fac Hlth & Med, Prior Res Ctr Reprod, Univ Dr Callaghan 2308, Callaghan, NSW 2308, Australia
基金
英国医学研究理事会;
关键词
nutrition assessment; pregnancy; mHealth; image-based dietary records; Indigenous; FOOD PHOTOGRAPHY; RECORDS; NUTRITION; VALIDITY; CAMERA; ENERGY; ADULTS; CHILDREN;
D O I
10.3390/nu9010073
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 [营养与食品卫生学];
摘要
Image-based dietary records could lower participant burden associated with traditional prospective methods of dietary assessment. They have been used in children, adolescents and adults, but have not been evaluated in pregnant women. The current study evaluated relative validity of the DietBytes image-based dietary assessment method for assessing energy and nutrient intakes. Pregnant women collected image-based dietary records (via a smartphone application) of all food, drinks and supplements consumed over three non-consecutive days. Intakes from the image-based method were compared to intakes collected from three 24-h recalls, taken on random days; once per week, in the weeks following the image-based record. Data were analyzed using nutrient analysis software. Agreement between methods was ascertained using Pearson correlations and Bland-Altman plots. Twenty-five women (27 recruited, one withdrew, one incomplete), median age 29 years, 15 primiparas, eight Aboriginal Australians, completed image-based records for analysis. Significant correlations between the two methods were observed for energy, macronutrients and fiber (r = 0.58-0.84, all p < 0.05), and for micronutrients both including (r = 0.47-0.94, all p < 0.05) and excluding (r = 0.40-0.85, all p < 0.05) supplements in the analysis. Bland-Altman plots confirmed acceptable agreement with no systematic bias. The DietBytes method demonstrated acceptable relative validity for assessment of nutrient intakes of pregnant women.
引用
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页数:17
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