Accuracy of estimates of food portion size using food photographs – the importance of using age-appropriate tools

Foster, Emma; Matthews, J. N. S.; Nelson, Michael; Harris, Julie M.; Mathers, John C.; Adamson, Ashley J.

doi:10.1079/phn2005872

Cited by 103 publications

(111 citation statements)

References 14 publications

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…Studies indicate that mobile phone use enhances self-monitoring due to their ubiquity among adolescents and that they provide reasonable estimations of food intake (Foster et al, 2006). Smartphones might also be feasible to use among adolescents who are experiencing language difficulties, such as those with an immigrant background, and the use of photo-food diaries has also been successful when exploring healthy eating among ethnic minority students (Rodgers et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Empowering aspects for healthy food and physical activity habits: adolescents’ experiences of a school-based intervention in a disadvantaged urban community

Holmberg

Larsson

Korp

et al. 2018

International Journal of Qualitative Studies on Health and Well

View full text Add to dashboard Cite

Purpose:This study aimed to describe adolescents’ experiences of participating in a health-promoting school-based intervention regarding food and physical activity, with a focus on empowering aspects. Method: The school was located in a urban disadvantaged community in Sweden, characterized by poorer self-reported health and lower life expectancy than the municipality average. Focus group interviews with adolescents (29 girls, 20 boys, 14–15 years) and their teachers (n = 4) were conducted two years after intervention. Data were categorized using qualitative content analysis. Results: A theme was generated, intersecting with all the categories: Gaining control over one’s health: deciding, trying, and practicing together, in new ways, using reflective tools. The adolescents appreciated influencing the components of the intervention and collaborating with peers in active learning activities such as practicing sports and preparing meals. They also reported acquiring new health information, that trying new activities was inspiring, and the use of pedometers and photo-food diaries helped them reflect on their health behaviours. The adolescents’ experiences were also echoed by their teachers. Conclusions: To facilitate empowerment and stimulate learning, health-promotion interventions targeting adolescents could enable active learning activities in groups, by using visualizing tools to facilitate self-reflection, and allowing adolescents to influence intervention activities.

show abstract

Section: Discussionmentioning

confidence: 99%

Empowering aspects for healthy food and physical activity habits: adolescents’ experiences of a school-based intervention in a disadvantaged urban community

Holmberg

Larsson

Korp

et al. 2018

International Journal of Qualitative Studies on Health and Well

View full text Add to dashboard Cite

show abstract

“…These studies, and numerous others not from South Asia (24)(25)(26)(27)(28)(29)(30)(31)(32)(33) , have reported bias (percentage error), percentage of correct photographs selected, ratios between estimated and weighed portions and/or correlations between weighed and recall methods. These are important measures for tools that are developed to aid the estimation of group-level mean nutrient intakes and risks of nutrient deficiency (5) .…”

mentioning

confidence: 88%

Development and validation of a photographic food atlas for portion size assessment in the southern plains of Nepal

Harris‐Fry

Paudel

Karn

et al. 2016

Public Health Nutr.

View full text Add to dashboard Cite

Objective: To develop and validate a photographic food atlas of common foods for dietary assessment in southern Nepal. Design: We created a life-sized photographic atlas of forty locally prepared foods. Between March and June 2014, data collectors weighed portion sizes that respondents consumed during one mealtime and then a different data collector revisited the household the next day to record respondents' estimations of their previous day's intakes using the atlas. Validity was assessed by percentage error, Cohen's weighted kappa (κ w ) and Bland-Altman limits of agreement. Setting: Dhanusha and Mahottari districts in southern Nepal. Subjects: A random sample of ninety-five adults in forty-eight rural households with a pregnant woman. Results: Overall, respondents underestimated their intakes (mean error = − 4·5 %). Rice and dal (spiced lentil soup) intakes were underestimated (−14·1 % and −34·5 %, respectively), but vegetable curry intake was overestimated (+20·8 %). Rice and vegetable curry portion size images were significantly reliably selected (Cohen's κ w (SE): rice = 0·391 (0·105); vegetable curry = 0·430 (0·139)), whereas dal images were not. Energy intake over one mealtime was under-reported by an average of 569 kJ (136 kcal; 4·5 % error) using recall compared with the weighing method. Conclusions: The photographic atlas is a useful tool for field estimation of dietary intake. Average errors were low, and there was 'modest' agreement between weighed and recalled portion size image selection of rice and vegetable curry food items. Error in energy estimation was low but with wide limits of agreement, suggesting that there is scope for future work to reduce error further.

show abstract

“…However, there is a crucial need to determine the error level induced by such an approach (8)(9)(10)(11)(12)(13) .…”

mentioning

confidence: 99%

Development and evaluation of a photographic atlas as a tool for dietary assessment studies in Middle East cultures

Tueni

Mounayar

Birlouez‐Aragon³

2012

Public Health Nutr.

View full text Add to dashboard Cite

Objective: To assess the errors between estimates of amounts based on photographs and actual quantities of food presented to adults or eaten on the previous day. Design: A photographic atlas was constructed by taking digital photographs of three pre-weighed portion sizes of 212 traditional Lebanese dishes. In a first approach, ten portions of real pre-weighed foods were assessed using the photographic atlas. In a second approach, the participants weighed all foods consumed at one meal and recalled the amount of food that was eaten the previous day using the photographic atlas. Differences between actual quantities and estimation were assessed using a signed rank test (P , 0?05). Spearman's correlation coefficients and bias (Bland-Altman plot) between the methods were calculated. Setting: Lebanese university canteen and Lebanese homes. Subjects: Forty adults (twenty males, twenty females) completed the first protocol and fifty adults (twenty-five males, twenty-five females) completed the second protocol; all were volunteers aged 21 to 62 years. Results: Mean differences between actual and estimated portion sizes by photographs were between 213?1 % and 124?5 % when pre-weighed foods were presented, and between 210?4 % and 13?8 % when foods were consumed the day before. No significant differences were found between actual and estimated portion sizes except for three dishes (loubieh bil zeit, tabbouleh and yachnet bazella). Bland-Altman plots showed good agreement for all dishes with a negligible bias of 20?2 g between estimated and presented portions, and 26?3 g between estimated and eaten portions. Conclusions: In the Lebanese diet, food photographs seem a reliable tool for quantification of food portion sizes.

show abstract

Accuracy of estimates of food portion size using food photographs – the importance of using age-appropriate tools

Cited by 103 publications

References 14 publications

Empowering aspects for healthy food and physical activity habits: adolescents’ experiences of a school-based intervention in a disadvantaged urban community

Empowering aspects for healthy food and physical activity habits: adolescents’ experiences of a school-based intervention in a disadvantaged urban community

Development and validation of a photographic food atlas for portion size assessment in the southern plains of Nepal

Development and evaluation of a photographic atlas as a tool for dietary assessment studies in Middle East cultures

Contact Info

Product

Resources

About