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Gallegos D, Booth S, Pollard CM, Chilton M, Kleve S. Food security definition, measures and advocacy priorities in high-income countries: a Delphi consensus study. Public Health Nutr 2023; 26:1986-1996. [PMID: 37144401 PMCID: PMC10564592 DOI: 10.1017/s1368980023000915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/06/2023] [Accepted: 04/26/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVE To establish an international consensus on the definition of food security, measures and advocacy priorities in high-income countries. DESIGN A two-round online Delphi survey with closing in March 2020 and December 2021. Consensus was set a priori at 75 %. Qualitative data were synthesised and priorities were ranked. SETTING High-income countries. PARTICIPANTS Household food security experts in academia, government and non-government organisations who had published in the last 5 years. RESULTS Up to thirty-two participants from fourteen high-income countries responded to the Delphi with a 25 % response rate in Round 1 and a 38 % response rate in Round 2. Consensus was reached on the technical food security definition and its dimensions. Consensus was not reached on a definition suitable for the general public. All participants agreed that food security monitoring systems provide valuable data for in-country decision-making. Favoured interventions were those that focused on upstream social policy influencing income. Respondents agreed that both national and local community level strategies were required to ameliorate food insecurity, reinforcing the complexity of the problem. CONCLUSIONS This study furthers the conceptual understanding of the commonly used definition of food security and its constituent dimensions. Strong advocacy is needed to ensure food security monitoring, policy and mitigation strategies are implemented. The consensus on the importance of prioritising actions that address the underlying determinants of household food security by experts in the field from across wealthy nations provides evidence to focus advocacy efforts and generate public debate.
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Affiliation(s)
- Danielle Gallegos
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
- Woolworths Centre for Childhood Nutrition Research, Queensland University of Technology, Brisbane, Australia
| | - Sue Booth
- College of Medicine and Public Health, Flinders University, Bedford Park, Australia
- School of Population Health, Curtin University, Perth, Australia
| | - Christina Mary Pollard
- School of Population Health, Curtin University, Perth, Australia
- Enable Institute, Curtin University, Perth, Australia
| | - Mariana Chilton
- Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - Sue Kleve
- Department of Nutrition, Dietetics and Food, Monash University, Clayton, Australia
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Pulker CE, Aberle LM, Butcher LM, Whitton C, Law KK, Large AL, Pollard CM, Trapp GSA. Development of the Menu Assessment Scoring Tool (MAST) to Assess the Nutritional Quality of Food Service Menus. Int J Environ Res Public Health 2023; 20:3998. [PMID: 36901008 PMCID: PMC10001456 DOI: 10.3390/ijerph20053998] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/13/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Preventing the rise in obesity is a global public health priority. Neighbourhood environments can help or undermine people's efforts to manage their weight, depending on availability of nutritious and nutrient-poor 'discretionary' foods. The proportion of household food budgets spent on eating outside the home is increasing. To inform nutrition policy at a local level, an objective assessment of the nutritional quality of foods and beverages on food service menus that is context-specific is needed. This study describes the development and piloting of the Menu Assessment Scoring Tool (MAST), used to assess the nutritional quality of food service menus in Australia. The MAST is a desk-based tool designed to objectively assess availability of nutrient-poor and absence of nutritious food and beverages on food service menus. A risk assessment approach was applied, using the best available evidence in an iterative way. MAST scores for 30 food service outlets in one Local Government Authority in Perth, Western Australia highlight opportunities for improvements. MAST is the first tool of its kind in Australia to assess the nutritional quality of food service menus. It was practical and feasible to use by public health nutritionists/dietitians and can be adapted to suit other settings or countries.
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Affiliation(s)
- Claire Elizabeth Pulker
- East Metropolitan Health Service, Kirkman House, Perth, WA 6000, Australia
- School of Population Health, Curtin University, Perth, WA 6845, Australia
| | | | - Lucy Meredith Butcher
- East Metropolitan Health Service, Kirkman House, Perth, WA 6000, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Clare Whitton
- East Metropolitan Health Service, Kirkman House, Perth, WA 6000, Australia
- School of Population Health, Curtin University, Perth, WA 6845, Australia
| | - Kristy Karying Law
- East Metropolitan Health Service, Kirkman House, Perth, WA 6000, Australia
- The George Institute for Global Health, Sydney, NSW 2042, Australia
| | - Amy Louise Large
- East Metropolitan Health Service, Kirkman House, Perth, WA 6000, Australia
| | - Christina Mary Pollard
- School of Population Health, Curtin University, Perth, WA 6845, Australia
- Enable Institute, Curtin University, Perth, WA 6845, Australia
| | - Georgina S. A. Trapp
- Telethon Kids Institute, Nedlands, WA 6009, Australia
- School of Population and Global Health, The University of Western Australia, Crawley, WA 6009, Australia
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Pollard CM, Landrigan TJ, Gray JM, McDonald L, Creed H, Booth S. Using the Food Stress Index for Emergency Food Assistance: An Australian Case Series Analysis during the COVID-19 Pandemic and Natural Disasters. Int J Environ Res Public Health 2021; 18:ijerph18136960. [PMID: 34209708 PMCID: PMC8297278 DOI: 10.3390/ijerph18136960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 11/16/2022]
Abstract
Food insecurity increases with human and natural disasters. Two tools were developed to assist effective food relief in Western Australia: the Food Stress Index (similar to rental stress, predicts the likelihood of household food insecurity by geographic location) and a basic and nutritious Food Basket Recommendation (that quantifies the types and amounts of food to meet dietary recommendations for different family types). This study aims to understand and compare the processes and impact of using these tools for organisations and their clients involved in emergency food assistance and/or disaster preparedness. A multiple case-study design analysed organisation's use of the tools to assist the response to COVID-19 pandemic restrictions and the catastrophic bushfires in Australia. Qualitative interviews were conducted by telephone and Zoom (a cloud-based video conferencing service) in July-August 2020. A purposeful sample of eight interviewees representing seven cases (government, food relief and community organisations involved in emergency food assistance and/or disaster preparedness). Three themes emerged from the analysis, (1) organisations are confident users of the tools; (2) Collaborations were "Ready to Go" and (3) Food Stress Index is a "game changer". Findings demonstrate the intrinsic value of the tools in the provision of emergency food relief under both normal circumstances and in times of increased need, i.e., COVID-19 pandemic. The study highlights the value and importance of ongoing intersectoral collaborations for food relief and food security (e.g., the Western Australian Food Relief Framework) and suggests that upscaling of the Food Stress Index and food baskets will increase the effectiveness of measures to address food insecurity in Australia.
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Affiliation(s)
- Christina Mary Pollard
- Faculty of Health Sciences, School of Population Health, Curtin University, Bentley, WA 6102, Australia;
- East Metropolitan Health Service, Perth, WA 6000, Australia
- Correspondence: ; Tel.: +61-8-9266-2731
| | - Timothy John Landrigan
- Faculty of Health Sciences, School of Population Health, Curtin University, Bentley, WA 6102, Australia;
| | - Jennie Margaret Gray
- Western Australian Council of Social Service, East Victoria Park, WA 6101, Australia; (J.M.G.); (H.C.)
| | - Lockie McDonald
- Independent Consultant, Fullsky Consulting, Mount Lawley, WA 6050, Australia;
| | - Helen Creed
- Western Australian Council of Social Service, East Victoria Park, WA 6101, Australia; (J.M.G.); (H.C.)
| | - Sue Booth
- College of Medicine and Public Health, Flinders University, Adelaide, SA 5000, Australia;
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Pulker CE, Trapp GSA, Fallows M, Hooper P, McKee H, Pollard CM. Food Outlets Dietary Risk (FODR) assessment tool: study protocol for assessing the public health nutrition risks of community food environments. Nutr J 2020; 19:122. [PMID: 33183279 PMCID: PMC7663896 DOI: 10.1186/s12937-020-00641-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 11/02/2020] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Availability and accessibility of nutritious foods can vary according to the food outlets present within a neighbourhood or community. There is increasing evidence that community food environments influence food choice, diet and the risk of diet-related chronic disease, however contemporary community food environments assessments (e.g. unhealthy fast food outlets versus healthy supermarkets or fruit and vegetable shops) may be too simplistic to accurately summarise the complexities of their impacts on food choice. This study protocol describes the development of the Food Outlets Dietary Risk (FODR) assessment tool for use by local government in Perth, Western Australia. METHODS Similar to food safety risk assessment, the FODR assessment tool rates the potential harmful public health nutrition impact of food outlets by identifying and characterising the issues, and assessing the risk of exposure. Scores are attributed to six public health nutrition attributes: 1) availability of nutrient-poor foods; 2) availability of nutritious foods; 3) acceptability and appeal; 4) accessibility; 5) type of business operation; and 6) complex food outlet considerations. Food retail outlets are then classified as having a low, medium, high or very high dietary risk based on their total score. DISCUSSION A local government administered tool to rate the public health nutrition risk of food outlets requires data which can be collected during routine assessments or sourced from the internet. The ongoing categorical classification of foods available within food outlets as either unhealthy or nutritious will require nutrition scientists' input. An objective risk assessment of the dietary impact of food retail outlets can guide local government planning, policies and interventions to create supportive community food environments. It is intended that locally relevant data can be sourced throughout Australia and in other countries to apply the local context to the FODR assessment tool. Utility and acceptability of the tool will be tested, and consultation with environmental health officers and public health practitioners will inform future iterations.
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Affiliation(s)
- Claire Elizabeth Pulker
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, Western Australia 6845 Australia
- East Metropolitan Health Service, Kirkman House, 20 Murray Street, East Perth, Perth, Western Australia 6004 Australia
| | - Georgina S. A. Trapp
- Telethon Kids Institute, The University of Western Australia, PO Box 855, West Perth, Western Australia 6872 Australia
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009 Australia
| | - Mark Fallows
- Department of Health of Western Australia, Perth, Western Australia 6004 Australia
| | - Paula Hooper
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009 Australia
| | - Heather McKee
- Telethon Kids Institute, The University of Western Australia, PO Box 855, West Perth, Western Australia 6872 Australia
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, Western Australia 6845 Australia
- East Metropolitan Health Service, Kirkman House, 20 Murray Street, East Perth, Perth, Western Australia 6004 Australia
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Jancey J, Burns S, Hendriks J, Pollard CM, Tohatoa J, Hallett J. Measuring health promotion research impact - What researchers think? Health Promot J Austr 2020; 32:437-443. [PMID: 32589313 DOI: 10.1002/hpja.379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 06/22/2020] [Indexed: 11/11/2022] Open
Abstract
ISSUES ADDRESSED The significant investment in health research has resulted in an increased focus to determine suitable approaches to measure health promotion research impact. This research was undertaken at the request of a nationally competitive research organisation that funds health promotion research, to explore how Chief Investigators (CIs) on their funded projects understood research impact, its measurement and associated challenges. METHODS Participants were required to be or have been a CI on an Australian competitive research (exploratory or intervention) grant focussed on health promotion. The qualitative study used thematic analysis from one-on-one interviews. Themes were created and descriptive quotes were selected to illustrate the main findings. RESULTS The majority of participants were female (n = 13) working at a university (n = 13). Three themes emerged: a) defining health research impact; b) complexity and simplicity of measuring health research impact; c) challenges of measuring health research impact: i) differing language; ii) differing assessment; iii) attribution and timing; and iv) resourcing and skills. CONCLUSION Researchers recognised that there are significant challenges in measuring the impact of health promotion research. The most significant factors identified by participants were the disciplinary background of the researchers undertaking the measurement, their skills and experience and the resources (including time) available to assess impact. SO WHAT?: Research impact assessment is complex, time consuming and requires specific skills to facilitate measurement of impact provision of funding for this activity in research grants and research impact training is required.
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Affiliation(s)
- Jonine Jancey
- Collaboration for Evidence, Research & Impact in Public Health, School of Public Health, Curtin University, Perth, WA, Australia
| | - Sharyn Burns
- Collaboration for Evidence, Research & Impact in Public Health, School of Public Health, Curtin University, Perth, WA, Australia
| | - Jacqui Hendriks
- Collaboration for Evidence, Research & Impact in Public Health, School of Public Health, Curtin University, Perth, WA, Australia
| | | | - Jennifer Tohatoa
- School of Public Health, Curtin University, Perth, WA, Australia
| | - Jonathan Hallett
- Collaboration for Evidence, Research & Impact in Public Health, School of Public Health, Curtin University, Perth, WA, Australia
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Affiliation(s)
- Sue Booth
- College of Medicine and Public Health, Flinders University, South Australia
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Pulker CE, Trapp GSA, Scott JA, Pollard CM. The Nature and Quality of Australian Supermarkets' Policies that can Impact Public Health Nutrition, and Evidence of their Practical Application: A Cross-Sectional Study. Nutrients 2019; 11:nu11040853. [PMID: 30991733 PMCID: PMC6520865 DOI: 10.3390/nu11040853] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 11/16/2022] Open
Abstract
Improving population diets is a public health priority, and calls have been made for corporations such as supermarkets to contribute. Supermarkets hold a powerful position within the food system, and one source of power is supermarket own brand foods (SOBFs). Many of the world’s largest supermarkets have corporate social responsibility (CSR) policies that can impact public health, but little is known about their quality or practical application. This study examines the nature and quality of Australian supermarkets’ CSR policies that can impact public health nutrition, and provides evidence of practical applications for SOBFs. A content analysis of CSR policies was conducted. Evidence of supermarkets putting CSR policies into practice was derived from observational audits of 3940 SOBFs in three large exemplar supermarkets (Coles, Woolworths, IGA) in Perth, Western Australia (WA). All supermarkets had some CSR policies that could impact public health nutrition; however, over half related to sustainability, and many lacked specificity. All supermarkets sold some nutritious SOBFs, using marketing techniques that made them visible. Findings suggest Australian supermarket CSR policies are not likely to adequately contribute to improving population diets or sustainability of food systems. Setting robust and meaningful targets, and improving transparency and specificity of CSR policies, would improve the nature and quality of supermarket CSR policies and increase the likelihood of a public health benefit.
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Affiliation(s)
- Claire Elizabeth Pulker
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth 6845, Western Australia, Australia.
| | - Georgina S A Trapp
- Telethon Kids Institute, The University of Western Australia, PO Box 855, West Perth 6872, Western Australia, Australia.
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia, Australia.
| | - Jane Anne Scott
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth 6845, Western Australia, Australia.
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth 6845, Western Australia, Australia.
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Pulker CE, Trapp GSA, Scott JA, Pollard CM. Global supermarkets' corporate social responsibility commitments to public health: a content analysis. Global Health 2018; 14:121. [PMID: 30497500 PMCID: PMC6267902 DOI: 10.1186/s12992-018-0440-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 11/15/2018] [Indexed: 11/17/2022] Open
Abstract
Background Supermarkets have unprecedented political and economic power in the food system and an inherent responsibility to demonstrate good corporate citizenship via corporate social responsibility (CSR). The aim of this study was to investigate the world’s largest and most powerful supermarkets’ publically available CSR commitments to determine their potential impact on public health. Methods The world’s largest 100 retailers were identified using the Global Powers of Retailing report. Thirty-one supermarkets that published corporate reports referring to CSR or sustainability, in English, between 2013 and 2018, were included and thematically analysed. Results Although a large number of themes were identified (n = 79), and there were differences between each business, supermarket CSR commitments focused on five priorities: donating surplus food to charities for redistribution to feed the hungry; reducing and recovering food waste; sustainably sourcing specific ingredients including seafood, palm oil, soy and cocoa; governance of food safety; and growing the number of own brand foods available, that are made by suppliers to meet supermarkets’ requirements. Conclusions CSR commitments made by 31 of the world’s largest supermarkets showed they appeared willing to take steps to improve sustainable sourcing of specific ingredients, but there was little action being taken to support health and nutrition. Although some supermarket CSR initiatives showed promise, the world’s largest supermarkets could do more to use their power to support public health. It is recommended they should: (1) transparently report food waste encompassing the whole of the food system in their waste reduction efforts; (2) support healthful and sustainable diets by reducing production and consumption of discretionary foods, meat, and other ingredients with high social and environmental impacts; (3) remove unhealthful confectionery, snacks, and sweetened beverages from prominent in-store locations; (4) ensure a variety of minimally processed nutritious foods are widely available; and (5) introduce initiatives to make healthful foods more affordable, support consumers to select healthful and sustainable foods, and report healthful food sales as a proportion of total food sales, using transparent criteria for key terms.
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Affiliation(s)
- Claire Elizabeth Pulker
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, WA, 6845, Australia.
| | - Georgina S A Trapp
- Telethon Kids Institute, The University of Western Australia, PO Box 855, West Perth, WA, 6872, Australia.,School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Jane Anne Scott
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, WA, 6845, Australia
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, WA, 6845, Australia.,East Metropolitan Health Service, Kirkman House, 20 Murray Street, East Perth, WA, 6004, Australia
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Pulker CE, Trapp GSA, Foulkes-Taylor F, Scott JA, Pollard CM. The extent and nature of supermarket own brand foods in Australia: study protocol for describing the contribution of selected products to the healthfulness of food environments. Nutr J 2018; 17:95. [PMID: 30359258 PMCID: PMC6201490 DOI: 10.1186/s12937-018-0404-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/14/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND While public health experts have identified food environments as a driver of poor diet, they also hold great potential to reduce obesity, non-communicable diseases, and their inequalities. Supermarkets are the dominant retail food environment in many developed countries including Australia. The contribution of supermarket own brands to the healthfulness of retail food environments has not yet been explored. The aim of this protocol is to describe the methods developed to examine the availability, nutritional quality, price, placement and promotion of supermarket own brand foods within Australian supermarkets. METHODS Photographic audits of all supermarket own brand foods present in three major food retail outlets were conducted. Two researchers conducted the supermarket audits in Perth, Western Australia in February 2017. Photographs showing the location of the in-store product display, location of products on shelves, use of display materials, and front-of-pack and shelf-edge labels were taken for each supermarket own brand food present. An electronic filing system was established for photographs from each of the supermarkets and an Excel database constructed. The following data were extracted from the photographs: front-of-pack product information (e.g. product and brand name, pack weight); packaging and label design attributes (e.g. country of origin; marketing techniques conveying value for money and convenience); shelf-edge label price and promotion information; placement and prominence of each product; and nutrition and health information (including supplementary nutrition information, nutrition and health claims, and marketing statements and claims). Nutritional quality of each product was assessed using the principles of the Australian Guide to Healthy Eating, the NOVA classification of level of food processing, and the Health Star Rating score displayed on the front-of-pack. DISCUSSION Approximately 20,000 photographic images were collected for 3940 supermarket own brand foods present in this audit: 1812 in the Woolworths store, 1731 in the Coles store, and 397 in the IGA store. Analysis of findings will enable researchers to identify opportunities for interventions to improve the contribution of supermarket own brands to healthful retail food environments. This protocol is unique as it aims to investigate all aspects of retail food environments and address the contribution of supermarket own brands.
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Affiliation(s)
- Claire Elizabeth Pulker
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, Western Australia, 6845, Australia. .,Curtin University, School of Public Health, Kent Street, Bentley, Western Australia, 6012, Australia.
| | - Georgina S A Trapp
- Telethon Kids Institute, The University of Western Australia, PO Box 855, West Perth, Western Australia, 6872, Australia.,School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Frances Foulkes-Taylor
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, Western Australia, 6845, Australia
| | - Jane Anne Scott
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, Western Australia, 6845, Australia
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, Western Australia, 6845, Australia.,East Metropolitan Health Service, Kirkman House, 20 Murray Street, East Perth, Western Australia, 6004, Australia
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Pulker CE, Trapp GSA, Scott JA, Pollard CM. Alignment of Supermarket Own Brand Foods' Front-of-Pack Nutrition Labelling with Measures of Nutritional Quality: An Australian Perspective. Nutrients 2018; 10:E1465. [PMID: 30304807 PMCID: PMC6213021 DOI: 10.3390/nu10101465] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/01/2018] [Accepted: 10/04/2018] [Indexed: 12/18/2022] Open
Abstract
Two voluntary front-of-pack nutrition labels (FOPNL) are present in Australia: the government-led Health Star Ratings (HSR) and food industry-led Daily Intake Guide (DIG). Australia's two largest supermarkets are key supporters of HSR, pledging uptake on all supermarket own brand foods (SOBF). This study aimed to examine prevalence of FOPNL on SOBF, and alignment with patterns of nutritional quality. Photographic audits of all SOBF present in three large supermarkets were conducted in Perth, Western Australia, in 2017. Foods were classified as nutritious or nutrient-poor based on the Australian Guide to Healthy Eating (AGTHE), NOVA level of food processing, and HSR score. Most (81.5%) SOBF featured FOPNL, with only 55.1% displaying HSR. HSR was present on 69.2% of Coles, 54.0% of Woolworths, and none of IGA SOBF. Half (51.3%) of SOBF were classified as nutritious using the AGTHE, but using NOVA, 56.9% were ultra-processed foods. Nutrient-poor and ultra-processed SOBF were more likely than nutritious foods to include HSR, yet many of these foods achieved HSR scores of 2.5 stars or above, implying they were a healthy choice. Supermarkets have a powerful position in the Australian food system, and they could do more to support healthy food selection through responsible FOPNL.
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Affiliation(s)
- Claire Elizabeth Pulker
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth 6845, Western Australia, Australia.
| | - Georgina S A Trapp
- Telethon Kids Institute, The University of Western Australia, P.O. Box 855, West Perth 6872, Western Australia, Australia.
- School of Population and Global Health, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia, Australia.
| | - Jane Anne Scott
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth 6845, Western Australia, Australia.
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth 6845, Western Australia, Australia.
- East Metropolitan Health Service, Kirkman House, 20 Murray Street, East Perth 6004, Western Australia, Australia.
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Pulker CE, Trapp GSA, Scott JA, Pollard CM. What are the position and power of supermarkets in the Australian food system, and the implications for public health? A systematic scoping review. Obes Rev 2018; 19:198-218. [PMID: 29193744 DOI: 10.1111/obr.12635] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 08/31/2017] [Accepted: 09/22/2017] [Indexed: 12/01/2022]
Abstract
Supermarkets have been described as having unprecedented and disproportionate power in the food system. This scoping review synthesized the literature that describes the position and power of supermarkets in the Australian food system, and the implications for public health. A systematic search of peer-reviewed and grey literature identified 68 documents that described supermarket power. Implications for public health were also recorded. Data revealed that supermarkets hold a powerful position in the Australian food system, acting as the primary gatekeepers. Supermarkets have obtained instrumental, structural and discursive power from many sources that overlap and reinforce each other. Few positive public health impacts of supermarket power were identified, providing many opportunities for improvement in the domains of food governance, the food system and public health nutrition. There is very little public health research examining the impact of supermarket power in Australia. More research is needed, and examination of supermarket own brands is of particular importance owing to their pivotal role as a source of power and their potential to improve public health outcomes, such as obesity.
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Affiliation(s)
- C E Pulker
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - G S A Trapp
- Telethon Kids Institute, Subiaco, Western Australia, Australia.,Centre for the Built Environment and Health, The University of Western Australia, Crawley, Western Australia, Australia.,School of Population Health, The University of Western Australia, Crawley, Western Australia, Australia
| | - J A Scott
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - C M Pollard
- School of Public Health, Curtin University, Perth, Western Australia, Australia.,Department of Health in Western Australia, Perth, Western Australia, Australia
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Begley A, Pollard CM. Workforce capacity to address obesity: a Western Australian cross-sectional study identifies the gap between health priority and human resources needed. BMC Public Health 2016; 16:881. [PMID: 27561672 PMCID: PMC5000430 DOI: 10.1186/s12889-016-3544-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 08/18/2016] [Indexed: 11/22/2022] Open
Abstract
Background The disease burden due to poor nutrition, physical inactivity and obesity is high and increasing. An adequately sized and skilled workforce is required to respond to this issue. This study describes the public health nutrition and physical activity (NAPA) practice priorities and explores health managers and practitioner’s beliefs regarding workforce capacity to deliver on these priorities. Methods A workforce audit was conducted including a telephone survey of all managers and a postal survey of practitioners working in the area of NAPA promotion in Western Australia in 2004. Managers gave their perspective on workforce priorities, current competencies and future needs, with a 70 % response rate. Practitioners reported on public health workforce priorities, qualifications and needs, with a 56 % response rate. Results The top practice priorities for managers were diabetes (35 %), alcohol and other drugs (33 %), and cardiovascular disease (27 %). Obesity (19 %), poor nutrition (15 %) and inadequate physical activity (10 %) were of lower priority. For nutrition, managers identified lack of staff (60.4 %), organisational and management factors (39.5 %) and insufficient financial resources (30.2 %) as the major barriers to adequate service delivery. For physical activity services, insufficient financial resources (41.7 %) and staffing (35.4 %) and a lack of specific physical activity service specifications (25.0 %) were the main barriers. Practitioners identified inadequate staffing as the main barrier to service delivery for nutrition (42.3 %) and physical activity (23.3 %). Ideally, managers said they required 152 % more specialist nutritionists in the workforce and 131 % specialists for physical activity services to meet health outcomes in addition to other generalist staff. Conclusion Human and financial resources and organisational factors were the main barriers to meeting obesity, and public health nutrition and physical activity outcomes. Services were being delivered by generalists rather than specialists, which may reduce service effectiveness. Although conclusions from this research need to take into account the fact that the audit was conducted in 2004, the findings suggest that there was a need to equip health services with an adequately skilled workforce of sufficient capacity to deliver an effective public health response to the obesity epidemic, particularly addressing poor nutrition and physical inactivity.
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Affiliation(s)
- Andrea Begley
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, 6845, WA, Australia.
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Kent Street, GPO Box U1987, Perth, 6845, WA, Australia.,Department of Health in Western Australia, 189 Royal Street, East Perth, 6004, WA, Australia
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Pollard CM, Howat PA, Pratt IS, Boushey CJ, Delp EJ, Kerr DA. Preferred Tone of Nutrition Text Messages for Young Adults: Focus Group Testing. JMIR Mhealth Uhealth 2016; 4:e1. [PMID: 26787115 PMCID: PMC4738180 DOI: 10.2196/mhealth.4764] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/21/2015] [Accepted: 10/20/2015] [Indexed: 12/26/2022] Open
Abstract
Background Young adults are a particularly hard to reach group using conventional health promotion practices as they do not see nutrition messages as personally relevant to them. Text messaging (short message service, SMS) offers an innovative approach to reaching young adults to support and promote dietary behavior change. Objective The aim of this study was to develop and test tonal preferences for nutrition text messages among young adults using focus groups. Methods A total of 39 young adults aged 18-30 years residing in Perth, Western Australia participated in four focus groups. Participants briefly discussed their perception of healthy eating and their responses to messages about increasing fruit and vegetables, and reducing “junk food” and alcohol intake. They ranked their preference for 15 nutrition messages across 3 dietary behaviors (fruit and vegetables, junk food, and alcohol) with 5 different message tones (authoritative, empathetic, generation Y, solutions, and substitutions) and identified the messages most likely to persuade young adults to change their diet. A 5-point ranking of the nutrition messages was from the most likely to least likely to persuade (1-5). The focus groups were conducted by a trained facilitator and observer and were recorded. Data driven content analysis was used to explore themes. Tonal preferences and potential motivators were collated and frequencies presented. Results Participants ranked offering substitutes (29%, 11/39) and using empathy (22%, 9/39) as the most persuasive message techniques in improving diets of young adults, with low responses for Generation Y (17%, 7/39), solutions (17%, 7/39), and authoritative (15%, 6/39) tones. Females were more likely to consider substitution messages persuasive (35%, 7/20) compared with males (22%, 4/19). A greater proportion of males compared with females considered authoritative messages persuasive: (22%, 4/19) compared with (7%, 1/20). There is a strong preference for a substitution tone for fruit and vegetable messages (52%, 20/39), and no overall message tone preference for junk food and alcohol messages. Substitutions were viewed as helpful and practical. Empathy was liked as it acknowledged previous efforts. Responses to authoritative tone were mixed with some feeling guilt while others found them informative. Acceptability of the solutions depended on the behavioral change and acceptability of the solution proposed. Generation Y tone had some support for junk food and alcohol messages, and if favored, was considered casual, humorous, catchy, and motivational. Conclusions Substitutions and tone of empathy were favored as the most likely execution styles to motivate nutrition behavior change across all participants. There is no “one size fits all” with different tones preferred by individuals for different dietary behaviors. Although text messaging provides instant message delivery direct to the individual, these results demonstrate the complexity of developing motivational nutrition message for young adults. These findings reveal the importance of considering the tone and content and pretesting messages for health promotion text message interventions.
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Pollard CM, Pulker CE, Meng X, Kerr DA, Scott JA. Who Uses the Internet as a Source of Nutrition and Dietary Information? An Australian Population Perspective. J Med Internet Res 2015; 17:e209. [PMID: 26310192 PMCID: PMC4642382 DOI: 10.2196/jmir.4548] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 07/08/2015] [Accepted: 07/24/2015] [Indexed: 11/13/2022] Open
Abstract
Background The Internet contains a plethora of nutrition information. Health organizations are increasingly using the Internet to deliver population-wide health information and interventions. Effective interventions identify their target population and their needs; however, little is known about use of the Internet as a source of nutrition information. Objective The aim was to assess the change in prevalence and demographic characteristics of Western Australian adults accessing the Internet as a source of nutrition information and identify specific information needs. Methods Data were pooled from the Western Australian Department of Health’s 3-yearly Nutrition Monitoring Survey Series telephone survey between 1995 and 2012 of 7044 participants aged 18 to 64 years. Outcome variables were the main sources of nutrition information used in the last year and yes/no responses to 4 suggestions to what would make it easier to eat a healthy diet. Sociodemographic variables were collected. Results The proportion of respondents using the Internet for nutrition information increased from <1% in 1995-2001 to 9.1% in 2004 and 33.7% in 2012. Compared to 2004, logistic regression showed that the odds of using the Internet for this information increased significantly in 2009 (OR 2.84, 95% CI 2.07-3.88) and 2012 (OR 5.20, 95% CI 3.86-7.02, P<.001). Respondents using the Internet as a source were more likely to be female (OR 1.30, 95% CI 1.05-1.60, P=.02), live in a metropolitan area (OR 1.26, 95% CI 1.03-1.54, P=.03), born in countries other than Australia/UK/Ireland (OR 1.41, 95% CI 1.07-1.85, P=.02), more educated (university: OR 2.46, 95% CI 1.77-3.42, P<.001), and were less likely to be older (55-64 years: OR 0.38, 95% CI 0.25-0.57, P<.001). The majority of respondents agreed the following information would assist them to make healthier choices: more ways to prepare healthy foods (72.0%, 95% CI 70.7-73.3), quicker ways to prepare healthy foods (79.0%, 95% CI 77.8-80.1), how to choose healthy foods (68.8%, 95% CI 67.5-70.1), and knowing more about cooking (54.7%, 95% CI 53.3-56.1). Those using the Internet for nutrition information were more likely than nonusers to want to know quicker ways to prepare healthy foods (83.0% vs 78.1%, P=.005) and information on choosing healthy foods (76.3% vs 67.3%, P<.001). Conclusions Use of the Internet as a main source of nutrition information has grown rapidly since 2004; one-third of Western Australian adults reported using the Internet for this purpose in 2012. Information on preparing healthy foods (ideas, quicker ways), choosing ingredients, and knowing more about cooking would make it easier to eat a healthy diet. For Internet users, emphasis should be on quicker ways and choosing ingredients. These finding have implications for policy makers and practitioners and suggest that traditional health promotion tactics should continue to be used to reach the broader population.
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Pollard CM, Landrigan TJ, Ellies PL, Kerr DA, Lester MLU, Goodchild SE. Geographic factors as determinants of food security: a Western Australian food pricing and quality study. Asia Pac J Clin Nutr 2015; 23:703-13. [PMID: 25516329 DOI: 10.6133/apjcn.2014.23.4.12] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Food affordability and quality can influence food choice. This research explores the impact of geographic factors on food pricing and quality in Western Australia (WA). A Healthy Food Access Basket (HFAB) was cost and a visual and descriptive quality assessment of 13 commonly consumed fresh produce items was conducted in-store on a representative sample of 144 food grocery stores. The WA retail environment in 2010 had 447 grocery stores servicing 2.9 million people: 38% of stores the two major chains (Coles® Supermarkets Australia and Woolworths ® Limited) in population dense areas, 50% were smaller independently owned stores (Independent Grocers Association®) in regional areas as well, and 12% Indigenous community stores in very remote areas. The HFAB cost 24% (p<0.0001) more in very remote areas than the major city with fruit (32%, p<0.0001), vegetables (26.1%, p<0.0005) and dairy (40%, p<0.0001) higher. Higher price did not correlate with higher quality with only 80% of very remote stores meeting all criteria for fresh produce compared with 93% in Perth. About 30% of very remote stores did not meet quality criteria for bananas, green beans, lettuce, and tomatoes. With increasing geographic isolation, most foods cost more and the quality of fresh produce was lower. Food affordability and quality may deter healthier food choice in geographically isolated communities. Improving affordability and quality of nutritious foods in remote communities may positively impact food choices, improve food security and prevent diet-sensitive chronic disease. Policy makers should consider influencing agriculture, trade, commerce, transport, freight, and modifying local food economies.
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Affiliation(s)
- Christina Mary Pollard
- Curtin School of Public Health, Curtin University, Kent Street Bentley, 6012, Western Australia.
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Daly A, Pollard CM, Phillips M, Binns CW. Benefits, barriers and enablers of breastfeeding: factor analysis of population perceptions in Western Australia. PLoS One 2014; 9:e88204. [PMID: 24516612 PMCID: PMC3917871 DOI: 10.1371/journal.pone.0088204] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 01/10/2014] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate knowledge and community perceptions of breastfeeding in Western Australia using a factor analysis approach. METHODS Data were pooled from five Nutrition Monitoring Survey Series which included information on breastfeeding from 4,802 Western Australian adults aged 18-64 years. Tetrachoric factor analysis was conducted for data reduction and significant associations identified using logistic, ordinal and poisson regression analyses. RESULTS Four factors were derived for benefits (it's natural, good nutrition, good for the baby, and convenience), barriers (breastfeeding problems, poor community acceptability, having to go back to work, and inconvenience) and for enablers (breastfeeding education, community support, family support and not having to work). As assessed by standardized odds ratios the most important covariates across benefit factors were: importance of breastfeeding (ORs range from 1.22-1.44), female gender (ORs range from 0.80 to 1.46), being able to give a time for how long a baby should be breastfed (ORs range from 0.96 to 1.27) and education (less than high school to university completion) (ORs range from 0.95 to 1.23); the most important covariate across barrier factors was being able to give a time for how long a baby should be breastfed (ORs range from 0.89 to 1.93); and the most important covariates across all enabling factors were education (ORs range from 1.14 to 1.32) and being able to give a time for how long a baby should be breastfed (ORs range from 1.17 to 1.42). CONCLUSIONS Being female, rating breastfeeding as important, believing that babies should be breastfed for a period of time and education accounted for most of the statistically significant associations. The differences between male and female perceptions require investigation particularly in relation to returning to work.
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Affiliation(s)
- Alison Daly
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - Christina Mary Pollard
- School of Public Health, Curtin University, Perth, Western Australia, Australia
- Department of Health, Perth, Western Australia, Australia
| | - Michael Phillips
- Harry Perkins Institute for Medical Research, University of Western Australia, Perth, Western Australia, Australia
| | - Colin William Binns
- School of Public Health, Curtin University, Perth, Western Australia, Australia
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Pollard CM, Meng X, McStay C. Community concern about the sale of high-caffeine drinks to children under 12 years of age: Western Australia population survey results. Health Promot J Austr 2013; 24:156-7. [DOI: 10.1071/he13033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 07/09/2013] [Indexed: 11/23/2022] Open
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Abstract
BACKGROUND Community attitudes toward breastfeeding in public influence how comfortable women feel about continuing breastfeeding. Knowledge of the social context helps target breastfeeding-promoting interventions. OBJECTIVE To examine trends in Western Australian adult attitudes toward breastfeeding in public places. METHODS As part of 5 cross-sectional surveys from the Western Australian Nutrition Monitor Survey Series conducted between 1995 and 2009, 5496 adults aged 18 to 64 years were asked whether it was acceptable for mothers to breastfeed their babies in public places, including shopping centers, workplaces, and restaurants, and on public transport. Descriptive statistics and multinomial regressions were used to describe factors associated with attitudes toward publicly breastfeeding. RESULTS There was no change in the acceptance of breastfeeding in shopping centers, restaurants, and workplaces and on public transport over time, but in 2009, significantly fewer people said that it was unacceptable to breastfeed in public compared with 1995. Women, people older than 44 years, those born outside Australia, and the less educated were those most likely to say that breastfeeding in public was unacceptable. In the years that the question was asked, more than 97% of respondents said that breastfeeding was acceptable if a separate room was provided. CONCLUSIONS Making breastfeeding acceptable and pleasant for mothers in public spaces is a key policy recommendation. Women, people older than 44 years, and those born outside Australia were most likely to respond that breastfeeding in public was unacceptable unless a room was provided. Given that, on average, 70% of the population said that breastfeeding in public was acceptable, investigation into why some women do not think so is warranted.
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Abstract
OBJECTIVE To determine the characteristics of long day care centre operations, food service management practices, and nutrition resources use and needs. METHOD In October 1996, all 330 long day care centres in Western Australia were surveyed by telephone to gather information to help develop strategies for food service improvement. RESULTS The response rate was 85%. An accreditation committee directed operations in 76% of centres. Most centres employed a cook with limited or no cooking training. Coordinators identified training needs for cooks that are specific to the National Childcare Accreditation Council's Quality Improvement and Accreditation System (QIAS) guidelines: food hygiene; nutritional and food requirements of children; menu planning; and multicultural cooking. CONCLUSIONS National standards for the quantification of foods to meet children's nutritional requirements in long day care would allow for consistency in educating child care workers, training cooks, and establishing and assessing government regulations and the QIAS guidelines. Nine recommendations for strategies to improve food service in long day care are presented. IMPLICATIONS There are two main messages for public health practitioners working to improve the quality of food served to children in long day care: the strong influence of the QIAS guidelines, and the need for specific nutrition recommendations.
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Affiliation(s)
- C M Pollard
- School of Public Health, Curtin University of Technology, Western Australia.
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Abstract
The Food Cent$ Project aimed to show low income earners a new way to allocate their food budget to obtain value for money and balance their diet. It also created an infrastructure for program delivery. Strategies included a recommended spending model, resources that addressed barriers to healthy eating, together with group activities to enhance knowledge and skills. Community volunteers, known as Food Cent$ Advisers, were trained to deliver the project by conducting budget and cooking sessions for people in their social networks. In 1992, the Food Cent$ Project was piloted in the Great Southern Health Region of Western Australia. It successfully reached its target group of low income earners who were identified as those holding Health Care Cards. Health Care Cards were held by 37% of the 150 trained advisers and 52% of the 373 people who attended the budget and cooking sessions. Evaluation results demonstrated positive changes in self-reported dietary, cooking and shopping behaviours.
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Affiliation(s)
- R M Foley
- Southern Public Health Unit, Western Australia
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Miller MR, Pollard CM, Coli T. Western Australian Health Department recommendations for fruit and vegetable consumption--how much is enough? Aust N Z J Public Health 1997; 21:638-42. [PMID: 9470272 DOI: 10.1111/j.1467-842x.1997.tb01769.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In 1989 the Nutrition Program of the Health Department of Western Australia determined a minimum recommended daily intake of fruit and vegetables for use in promotion of increased fruit and vegetable consumption. Considerations in the development of this recommendation included: a review of existing recommendations; the protective effects of fruit and vegetables; specification of fruit and vegetables separately or together; classification of fruit and vegetables; definition of a serve; and practical considerations for the implementation of the recommendation. This paper outlines the development of the recommendation to eat at least two average-sized (120-150 g) pieces of fruit and five average-sized (60-90 g) serves of vegetables daily.
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Affiliation(s)
- M R Miller
- Health Department of Western Australia, Perth
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Pollard CM, Powles RL, Millar JL, Shepherd V, Milan S, Lakhani A, Zuiable A, Treleaven J, Helenglass G. Leukaemic relapse after Campath 1 treated bone marrow transplantation for leukaemia. Lancet 1986; 2:1404. [PMID: 2878268 DOI: 10.1016/s0140-6736(86)92052-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Pollard CM, Powles RL, Millar JL, Shepherd V, Milan S, Lakhani A, Zuiable A, Treleaven J, Helenglass G. Leukaemic relapse following Campath 1 treated bone marrow transplantation for leukaemia. Lancet 1986; 2:1343-4. [PMID: 2878219 DOI: 10.1016/s0140-6736(86)91482-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Abstract
Thirty caucasian male patients with stable angina were investigated in two groups of nine and one group of 12. Nine normal subjects were also studied. Patients in the first group (on no treatment) underwent symptom-limited exercise electrocardiography at 0800, 1200, and 1600 hours on the same day. Their heart rates and ST segment displacements at 1600 hours were significantly greater than at 0800 hours and the same phenomenon was seen in the second group who had been receiving propranolol 40 mg four times a day. A similar effect was noted for ST segment displacement but not for heart rate in the third group (on no treatment) tested at 0800 hours and 1600 hours on separate days, two to three weeks apart. Normal control subjects showed no diurnal variation in heart rate and their heart rate responses at 1600 hours were reduced by propranolol. The observations show a circadian variation in the ST segment response to exercise in patients with angina and a possible training effect on heart rate with multiple exercise testing on the same day. This variation is associated with a reduction in vagal parasympathetic tone to the heart and should be taken into account in the assessment of patients with angina and in particular when comparing responses to treatment.
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