A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data

Abstract Objective: We compared self‐reported dietary intake from the very remote sample of the National Aboriginal and Torres Strait Islander Nutrition and Physical Activity Survey (VR‐NATSINPAS; n=1,363) to one year of food and beverage purchases from 20 very remote Indigenous Australian communiti...

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Main Authors: Emma McMahon, Thomas Wycherley, Kerin O'Dea, Julie Brimblecombe
Format: Article
Language:English
Published: Elsevier 2017-12-01
Series:Australian and New Zealand Journal of Public Health
Subjects:
Online Access:https://doi.org/10.1111/1753-6405.12718
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author Emma McMahon
Thomas Wycherley
Kerin O'Dea
Julie Brimblecombe
author_facet Emma McMahon
Thomas Wycherley
Kerin O'Dea
Julie Brimblecombe
author_sort Emma McMahon
collection DOAJ
description Abstract Objective: We compared self‐reported dietary intake from the very remote sample of the National Aboriginal and Torres Strait Islander Nutrition and Physical Activity Survey (VR‐NATSINPAS; n=1,363) to one year of food and beverage purchases from 20 very remote Indigenous Australian communities (servicing ∼8,500 individuals). Methods: Differences in food (% energy from food groups) and nutrients were analysed using t‐test with unequal variance. Results: Per‐capita energy estimates were not significantly different between the surveys (899 MJ/person/day [95% confidence interval −152,1950] p=0.094). Self‐reported intakes of sugar, cereal products/dishes, beverages, fats/oils, milk products/dishes and confectionery were significantly lower than that purchased, while intakes of meat, vegetables, cereal‐based dishes, fish, fruit and eggs were significantly higher (p<0.05). Conclusion: Differences between methods are consistent with differential reporting bias seen in self‐reported dietary data. Implications for public health: The NATSINPAS provides valuable, much‐needed information about dietary intake; however, self‐reported data is prone to energy under‐reporting and reporting bias. Purchase data can be used to track population‐level food and nutrient availability in this population longitudinally; however, further evidence is needed on approaches to estimate wastage and foods sourced outside the store. There is potential for these data to complement each other to inform nutrition policies and programs in this population.
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spelling doaj.art-cda62008cce74352a855f0a951d27fd72023-09-02T23:54:12ZengElsevierAustralian and New Zealand Journal of Public Health1326-02001753-64052017-12-0141659860310.1111/1753-6405.12718A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase dataEmma McMahon0Thomas Wycherley1Kerin O'Dea2Julie Brimblecombe3Wellbeing and Preventable Chronic Diseases Division Menzies School of Health Research Royal Hospital Campus Northern TerritoryWellbeing and Preventable Chronic Diseases Division Menzies School of Health Research Royal Hospital Campus Northern TerritoryCentre for Population Health Research, School of Health Sciences University of South AustraliaWellbeing and Preventable Chronic Diseases Division Menzies School of Health Research Royal Hospital Campus Northern TerritoryAbstract Objective: We compared self‐reported dietary intake from the very remote sample of the National Aboriginal and Torres Strait Islander Nutrition and Physical Activity Survey (VR‐NATSINPAS; n=1,363) to one year of food and beverage purchases from 20 very remote Indigenous Australian communities (servicing ∼8,500 individuals). Methods: Differences in food (% energy from food groups) and nutrients were analysed using t‐test with unequal variance. Results: Per‐capita energy estimates were not significantly different between the surveys (899 MJ/person/day [95% confidence interval −152,1950] p=0.094). Self‐reported intakes of sugar, cereal products/dishes, beverages, fats/oils, milk products/dishes and confectionery were significantly lower than that purchased, while intakes of meat, vegetables, cereal‐based dishes, fish, fruit and eggs were significantly higher (p<0.05). Conclusion: Differences between methods are consistent with differential reporting bias seen in self‐reported dietary data. Implications for public health: The NATSINPAS provides valuable, much‐needed information about dietary intake; however, self‐reported data is prone to energy under‐reporting and reporting bias. Purchase data can be used to track population‐level food and nutrient availability in this population longitudinally; however, further evidence is needed on approaches to estimate wastage and foods sourced outside the store. There is potential for these data to complement each other to inform nutrition policies and programs in this population.https://doi.org/10.1111/1753-6405.12718store sales datapopulation nutritiondietary assessmentIndigenous Australians24‐hour recall
spellingShingle Emma McMahon
Thomas Wycherley
Kerin O'Dea
Julie Brimblecombe
A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data
Australian and New Zealand Journal of Public Health
store sales data
population nutrition
dietary assessment
Indigenous Australians
24‐hour recall
title A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data
title_full A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data
title_fullStr A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data
title_full_unstemmed A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data
title_short A comparison of dietary estimates from the National Aboriginal and Torres Strait Islander Health Survey to food and beverage purchase data
title_sort comparison of dietary estimates from the national aboriginal and torres strait islander health survey to food and beverage purchase data
topic store sales data
population nutrition
dietary assessment
Indigenous Australians
24‐hour recall
url https://doi.org/10.1111/1753-6405.12718
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