School of Public Health, Faculty of Medicine, The University of Queensland, Herston, Queensland, Australia.
The Australian Prevention Partnership Centre, The Sax Institute, Ultimo, New South Wales, Australia.
Nutr J. 2020 Dec 10;19(1):139. doi: 10.1186/s12937-020-00654-5.
Low socioeconomic groups (SEGs) in Australia are less likely to consume diets consistent with the Australian Dietary Guidelines (ADGs) and suffer poorer health than the broader population. The unaffordability, or perceived high cost, of healthy diets may be a factor. Detailed data on the cost of habitually consumed diets is required in order to inform strategies to alleviate socioeconomic impacts on dietary intake. This systematic scoping review aims to identify the cost of the habitual dietary intake of low SEGs in Australia, in terms of the whole diet and its composite foods, in comparison to the cost in higher SEGs.
A systematic search of peer-reviewed literature since 2000 and key government and non-government organisation (NGO) websites was undertaken. Data were extracted, synthesised and analysed in relation to study populations, dietary cost assessment measures, socioeconomic measures, and dietary cost and affordability.
The review identified four studies meeting inclusion criteria. Results confirmed that overall, low SEGs spend a lower amount, yet a higher proportion of household income, on food and drinks than higher SEGs. Quantitative comparison of the dietary costs between included studies was not possible due to difference in populations and study metrics. Costs of the habitual diet in these studies were not reported for ADG food groups, so did not allow for assessment of the healthfulness of the dietary intake or comparison with costs of recommended diets at food group level.
Existing research does not provide sufficiently granular data of the costs of habitual diets of low SEGs in comparison to higher SEGs or data in a form that can inform strategies and interventions to improve dietary intake and diet-related health of low SEGs in Australia. Future empirical health research requires more granular measures of habitual spending on ADG food groups across SEGs.
澳大利亚的低收入社会经济群体（SEG）摄入的饮食与澳大利亚饮食指南（ADG）不一致，健康状况也比其他人群差。造成这种情况的原因可能是健康饮食的负担能力或高成本。为了制定减轻饮食摄入对社会经济影响的策略，需要详细了解习惯性饮食的成本。本系统范围审查旨在确定澳大利亚低收入 SEG 习惯性饮食的成本，包括整个饮食及其组合食品，与高 SEG 相比。
对 2000 年以来的同行评议文献和主要政府及非政府组织（NGO）网站进行了系统搜索。根据研究人群、饮食成本评估措施、社会经济措施以及饮食成本和负担能力，对数据进行了提取、综合和分析。
该审查确定了四项符合纳入标准的研究。结果证实，总体而言，与高 SEG 相比，低收入 SEG 花费的金额较少，但用于食品和饮料的家庭收入比例较高。由于研究人群和研究指标的差异，无法对纳入研究的饮食成本进行定量比较。这些研究没有报告习惯性饮食的成本，因此无法评估饮食摄入的健康程度，也无法比较食物组水平上推荐饮食的成本。
现有研究没有提供足够详细的低 SEG 习惯性饮食成本数据，无法与高 SEG 进行比较，也没有以能够为改善澳大利亚低 SEG 饮食摄入和饮食相关健康的策略和干预措施提供信息的形式提供数据。未来的健康实证研究需要对 SEG 之间 ADG 食物组的习惯性支出进行更详细的衡量。
