Evidence map›Paper›PMID 32662385›Full record

ArticlePublic health nutrition2021

Streamlined data-gathering techniques to estimate the price and affordability of healthy and unhealthy diets under different pricing scenarios.

Christina Zorbas, Amanda Lee, Anna Peeters, Meron Lewis, Timothy Landrigan, Kathryn Backholer

Abstract read
In one paragraph

Article in Public health nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Diet Cost and Affordability in Queensland: A Two-Year Cross-Sectional Study.International journal of environmental research and public health · 2026
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  5. Where Cost of Food Hits Hardest: Investigation of Diet Cost and Affordability in a Low Socioeconomic Region of Australia.Health promotion journal of Australia : official journal of Australian Association of Health Promotion Professionals · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Christina ZorbasGlobal Obesity Centre, Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia.ORCID 0000-0002-7343-2424
Amanda LeeThe Australian Prevention Partnership Centre and The University of Queensland, Queensland, Australia.
Anna PeetersGlobal Obesity Centre, Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia.
Meron LewisThe Australian Prevention Partnership Centre and The University of Queensland, Queensland, Australia.ORCID 0000-0003-2163-0848
Timothy LandriganSchool of Public Health, Curtin University, Western Australia, Australia.ORCID 0000-0002-2103-8820
Kathryn BackholerGlobal Obesity Centre, Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the reliability of streamlined data-gathering techniques for examining the price and affordability of a healthy (recommended) and unhealthy (current) diet. We additionally estimated the price and affordability of diets across socio-economic areas and quantified the influence of different pricing scenarios.

designFollowing the Healthy Diets Australian Standardised Affordability and Pricing (ASAP) protocol, we compared a cross-sectional sample of food and beverage pricing data collected using online data and phone calls (lower-resource streamlined techniques) with data collected in-store from the same retailers.

settingFood and beverage prices were collected from major supermarkets, fast food and alcohol retailers in eight conveniently sampled areas in Victoria, Australia (n 72 stores), stratified by area-level deprivation and remoteness.

participantsThis study did not involve human participants.

resultsThe biweekly price of a healthy diet was on average 21 % cheaper ($596) than an unhealthy diet ($721) for a four-person family using the streamlined techniques, which was comparable with estimates using in-store data (healthy: $594, unhealthy: $731). The diet price differential did not vary considerably across geographical areas (range: 18-23 %). Both diets were estimated to be unaffordable for families living on indicative low disposable household incomes and below the poverty line. The inclusion of generic brands notably reduced the prices of healthy and unhealthy diets (≥20 %), rendering both affordable against indicative low disposable household incomes. Inclusion of discounted prices marginally reduced diet prices (3 %).

conclusionsStreamlined data-gathering techniques are a reliable method for regular, flexible and widespread monitoring of the price and affordability of population diets in areas where supermarkets have an online presence.

Indexed as

CommerceDietCosts and Cost AnalysisCross-Sectional StudiesFoodHumansReproducibility of ResultsVictoriaFood affordabilityFood priceNutrition policyObesity preventionOnline dataPricing policies

Identifiers

PMID32662385
PMCPMC10195412

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.