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    Yngve, Agneta Tseng, Marilyn Hodge, Allison McNeill, Geraldine and Haapala, Irja 2011. Assessment of diet and physical activity: new tools; old challenges. Public Health Nutrition, Vol. 14, Issue. 03, p. 377.


    Lu, A. S. Baranowski, J. Islam, N. and Baranowski, T. 2014. How to engage children in self-administered dietary assessment programmes. Journal of Human Nutrition and Dietetics, Vol. 27, p. 5.


    Lanerolle, P. Thoradeniya, T. and de Silva, A. 2013. Food models for portion size estimation of Asian foods. Journal of Human Nutrition and Dietetics, Vol. 26, Issue. 4, p. 380.


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    Diep, Cassandra S. Hingle, Melanie Chen, Tzu-An Dadabhoy, Hafza R. Beltran, Alicia Baranowski, Janice Subar, Amy F. and Baranowski, Tom 2015. The Automated Self-Administered 24-Hour Dietary Recall for Children, 2012 Version, for Youth Aged 9 to 11 Years: A Validation Study. Journal of the Academy of Nutrition and Dietetics, Vol. 115, Issue. 10, p. 1591.


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    Jia, Wenyan Chen, Hsin-Chen Yue, Yaofeng Li, Zhaoxin Fernstrom, John Bai, Yicheng Li, Chengliu and Sun, Mingui 2014. Accuracy of food portion size estimation from digital pictures acquired by a chest-worn camera. Public Health Nutrition, Vol. 17, Issue. 08, p. 1671.


    Subar, Amy F. Kirkpatrick, Sharon I. Mittl, Beth Zimmerman, Thea Palmer Thompson, Frances E. Bingley, Christopher Willis, Gordon Islam, Noemi G. Baranowski, Tom McNutt, Suzanne and Potischman, Nancy 2012. The Automated Self-Administered 24-Hour Dietary Recall (ASA24): A Resource for Researchers, Clinicians, and Educators from the National Cancer Institute. Journal of the Academy of Nutrition and Dietetics, Vol. 112, Issue. 8, p. 1134.


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Children’s accuracy of portion size estimation using digital food images: effects of interface design and size of image on computer screen

Abstract
AbstractObjective

To test the effect of image size and presence of size cues on the accuracy of portion size estimation by children.

Design

Children were randomly assigned to seeing images with or without food size cues (utensils and checked tablecloth) and were presented with sixteen food models (foods commonly eaten by children) in varying portion sizes, one at a time. They estimated each food model’s portion size by selecting a digital food image. The same food images were presented in two ways: (i) as small, graduated portion size images all on one screen or (ii) by scrolling across large, graduated portion size images, one per sequential screen.

Setting

Laboratory-based with computer and food models.

Subjects

Volunteer multi-ethnic sample of 120 children, equally distributed by gender and ages (8 to 13 years) in 2008–2009.

Results

Average percentage of correctly classified foods was 60·3 %. There were no differences in accuracy by any design factor or demographic characteristic. Multiple small pictures on the screen at once took half the time to estimate portion size compared with scrolling through large pictures. Larger pictures had more overestimation of size.

Conclusions

Multiple images of successively larger portion sizes of a food on one computer screen facilitated quicker portion size responses with no decrease in accuracy. This is the method of choice for portion size estimation on a computer.

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Copyright
Corresponding author
*Corresponding author: Email tbaranow@bcm.tmc.edu
Linked references
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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

1.RS McPherson , DM Hoelsher , M Alexander (2000) Dietary assessment methods among school-aged children: validity and reliability. Prev Med 31, Suppl. 2, S11S33.

2.T Baranowski , N Islam , J Baranowski (2002) The food intake recording software system is valid among fourth-grade children. J Am Diet Assoc 102, 380385.

3.T Baranowski , A Beltran , S Martin (2010) Tests of the accuracy and speed of categorizing foods into child vs professional categories using two methods of browsing with children. J Am Diet Assoc 110, 9194.

4.YS Cypel , PM Guenther & GJ Petot (1997) Validity of portion-size measurement aids: a review. J Am Diet Assoc 97, 289292.

7.A Subar , J Crafts , T Zimmerman (2010) Assessment of the accuracy of portion size reports using computer-based food photography aids in the development of an automated self-administered 24-hour recall. J Am Diet Assoc 110, 5564.

9.IT Lillegaard , NC Overby & LF Andersen (2005) Can children and adolescents use photographs of food to estimate portion sizes? Eur J Clin Nutr 59, 611617.

11.JM Dave , AE Evans , RP Saunders (2009) Associations among food insecurity, acculturation, demographic factors, and fruit and vegetable intake at home in Hispanic children. J Am Diet Assoc 109, 697701.

12.E Foster , M O’Keeffe , JN Matthews (2008) Children’s estimates of food portion size: the effect of timing of dietary interview on the accuracy of children’s portion size estimates. Br J Nutr 99, 185190.

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Public Health Nutrition
  • ISSN: 1368-9800
  • EISSN: 1475-2727
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