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The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region

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2018
859.pdf (642.6Kb)
Authors
Nikolić, Marina
Milešević, Jelena
Zeković, Milica T.
Gurinović, Mirjana A.
Glibetić, Marija
Article (Published version)
Metadata
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Abstract
Assessment of portion sizes is an important factor for the accuracy of food consumption surveys. The objective of this study was to develop and validate a food atlas of commonly consumed foods in the Balkan region in order to improve the accuracy of portion size estimation for food consumption surveys. A list of 135 foods and their portion sizes was based on previously conducted food consumption surveys in this region. Food was cooked, measured and served in three or four portion sizes right before being photographed. A validation study was conducted through the visual perception method. Without receiving training on usage of the food picture book, participants were asked to evaluate two portion sizes of 20 selected foods by comparison with a photo series of each food. Portion sizes were evaluated by 18 nutrition professionals and 17 lay individuals who had no nutritional education. Mean differences and the standard deviations of the mean differences (SD) between the portions estimated... by each participant and the served portion were calculated. The percentages of participants who selected the correct, adjacent or distant portion size also were calculated. The number of food items that were quantified within the predefined acceptable range (i.e., mean difference lt vertical bar 0.7 vertical bar and SD lt 1) was 16 (80%) among lay individuals and 17 (85%) among nutritional professionals. Among 16 photo series that were assessed as "acceptable," the percentage of all participants, who selected the correct picture, was between 44.3 and 82.9%, with an average of 60.2%. Only three foods were assessed correctly by lt 50% participants. The percentage of participants who selected the correct or adjacent serving size was above 98% for both lay and professional evaluators. This is the first food atlas containing representative foods and recipes commonly consumed in the Balkan region. However, further adjustments of the methodology should include larger number of food items to be tested, involvement of more participants and provision of training for the users of the food atlas. This food atlas could be used in food consumption surveys in the Balkan region after further testing and validation.

Keywords:
food picture book / portion size / nutritional assessment / validation / food consumption survey
Source:
Frontiers in Nutrition, 2018, 5
Publisher:
  • Frontiers Media Sa, Lausanne
Funding / projects:
  • Capacity Development Network in Nutrition in Central and Eastern Europe (CAPNUTRA)

DOI: 10.3389/fnut.2018.00078

ISSN: 2296-861X

PubMed: 30271776

WoS: 000447398900001

Scopus: 2-s2.0-85062693820
[ Google Scholar ]
19
15
URI
http://rimi.imi.bg.ac.rs/handle/123456789/862
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
Institut za medicinska istraživanja
TY  - JOUR
AU  - Nikolić, Marina
AU  - Milešević, Jelena
AU  - Zeković, Milica T.
AU  - Gurinović, Mirjana A.
AU  - Glibetić, Marija
PY  - 2018
UR  - http://rimi.imi.bg.ac.rs/handle/123456789/862
AB  - Assessment of portion sizes is an important factor for the accuracy of food consumption surveys. The objective of this study was to develop and validate a food atlas of commonly consumed foods in the Balkan region in order to improve the accuracy of portion size estimation for food consumption surveys. A list of 135 foods and their portion sizes was based on previously conducted food consumption surveys in this region. Food was cooked, measured and served in three or four portion sizes right before being photographed. A validation study was conducted through the visual perception method. Without receiving training on usage of the food picture book, participants were asked to evaluate two portion sizes of 20 selected foods by comparison with a photo series of each food. Portion sizes were evaluated by 18 nutrition professionals and 17 lay individuals who had no nutritional education. Mean differences and the standard deviations of the mean differences (SD) between the portions estimated by each participant and the served portion were calculated. The percentages of participants who selected the correct, adjacent or distant portion size also were calculated. The number of food items that were quantified within the predefined acceptable range (i.e., mean difference  lt  vertical bar 0.7 vertical bar and SD  lt  1) was 16 (80%) among lay individuals and 17 (85%) among nutritional professionals. Among 16 photo series that were assessed as "acceptable," the percentage of all participants, who selected the correct picture, was between 44.3 and 82.9%, with an average of 60.2%. Only three foods were assessed correctly by  lt 50% participants. The percentage of participants who selected the correct or adjacent serving size was above 98% for both lay and professional evaluators. This is the first food atlas containing representative foods and recipes commonly consumed in the Balkan region. However, further adjustments of the methodology should include larger number of food items to be tested, involvement of more participants and provision of training for the users of the food atlas. This food atlas could be used in food consumption surveys in the Balkan region after further testing and validation.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Nutrition
T1  - The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region
VL  - 5
DO  - 10.3389/fnut.2018.00078
ER  - 
@article{
author = "Nikolić, Marina and Milešević, Jelena and Zeković, Milica T. and Gurinović, Mirjana A. and Glibetić, Marija",
year = "2018",
abstract = "Assessment of portion sizes is an important factor for the accuracy of food consumption surveys. The objective of this study was to develop and validate a food atlas of commonly consumed foods in the Balkan region in order to improve the accuracy of portion size estimation for food consumption surveys. A list of 135 foods and their portion sizes was based on previously conducted food consumption surveys in this region. Food was cooked, measured and served in three or four portion sizes right before being photographed. A validation study was conducted through the visual perception method. Without receiving training on usage of the food picture book, participants were asked to evaluate two portion sizes of 20 selected foods by comparison with a photo series of each food. Portion sizes were evaluated by 18 nutrition professionals and 17 lay individuals who had no nutritional education. Mean differences and the standard deviations of the mean differences (SD) between the portions estimated by each participant and the served portion were calculated. The percentages of participants who selected the correct, adjacent or distant portion size also were calculated. The number of food items that were quantified within the predefined acceptable range (i.e., mean difference  lt  vertical bar 0.7 vertical bar and SD  lt  1) was 16 (80%) among lay individuals and 17 (85%) among nutritional professionals. Among 16 photo series that were assessed as "acceptable," the percentage of all participants, who selected the correct picture, was between 44.3 and 82.9%, with an average of 60.2%. Only three foods were assessed correctly by  lt 50% participants. The percentage of participants who selected the correct or adjacent serving size was above 98% for both lay and professional evaluators. This is the first food atlas containing representative foods and recipes commonly consumed in the Balkan region. However, further adjustments of the methodology should include larger number of food items to be tested, involvement of more participants and provision of training for the users of the food atlas. This food atlas could be used in food consumption surveys in the Balkan region after further testing and validation.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Nutrition",
title = "The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region",
volume = "5",
doi = "10.3389/fnut.2018.00078"
}
Nikolić, M., Milešević, J., Zeković, M. T., Gurinović, M. A.,& Glibetić, M.. (2018). The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region. in Frontiers in Nutrition
Frontiers Media Sa, Lausanne., 5.
https://doi.org/10.3389/fnut.2018.00078
conv_4414
Nikolić M, Milešević J, Zeković MT, Gurinović MA, Glibetić M. The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region. in Frontiers in Nutrition. 2018;5.
doi:10.3389/fnut.2018.00078
conv_4414 .
Nikolić, Marina, Milešević, Jelena, Zeković, Milica T., Gurinović, Mirjana A., Glibetić, Marija, "The Development and Validation of Food Atlas for Portion Size Estimation in the Balkan Region" in Frontiers in Nutrition, 5 (2018),
https://doi.org/10.3389/fnut.2018.00078 .,
conv_4414 .

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