Groupe d'études en nutrition publique, Département des sciences des aliments et de nutrition, Université Laval, Sainte-Foy, QC.
Can J Public Health. 2009 Sep-Oct;100(5):361-4. doi: 10.1007/BF03405271.
To examine the cost of fruits and vegetables (FV) with respect to different food store types, urbanization level and material deprivation for various urban areas of greater Quebec City.
A sample of 85 food stores was selected. They represented five store types (small, conventional, and large grocery stores; greengrocers; convenience stores) in four geographic areas reflecting three different socio-economic levels. We identified three FV baskets (grocery, fresh FV, convenience) by drawing on data on household food spending and consumption, and food supply in the five store types. Four investigators were trained to conduct a survey of prices for the week of September 17-23, 2007. Analysis of variance and t tests were conducted to examine variations in food baskets with regard to the variables defined in this study. A chi-square test was used to measure the frequency distribution of stores throughout the greater Quebec City.
Only food store type had a significant influence on FV cost: cost was much lower in large grocery stores and greengrocers. Convenience stores, where prices are higher, outnumbered all others in deprived urban areas, supporting the contention that there are inequities in economic access.
Economic access to FV may differ by area in the greater Quebec City, putting rural inhabitants and less privileged urban dwellers at the greatest disadvantage; this may, in turn, contribute to health disparities. The results point to the need to improve our understanding of the way components of the food environment at the regional level affect social inequality.
研究大魁北克市不同城区不同食物销售点类型、城市化水平和物质贫困程度下水果和蔬菜的价格成本。
选取了 85 家食品店作为样本,它们代表了 5 种不同的销售点类型(小型、传统、大型杂货店、蔬菜水果店、便利店),分布在 4 个不同地理位置,反映了 3 种不同的社会经济水平。我们根据家庭食品支出和消费数据以及 5 种销售点的食品供应情况,确定了 3 种不同的水果和蔬菜篮子(杂货店、新鲜水果和蔬菜、便利店)。我们培训了 4 名调查员,让他们在 2007 年 9 月 17 日至 23 日这一周内对价格进行调查。通过方差分析和 t 检验,我们检验了不同变量对食品篮子价格的影响。通过卡方检验,我们衡量了大魁北克市不同区域的商店分布频率。
只有食品销售点类型对水果和蔬菜的价格成本有显著影响:大型杂货店和蔬菜水果店的价格成本要低得多。在贫困城区,价格更高的便利店数量超过了其他所有类型的商店,这支持了经济准入存在不平等的观点。
大魁北克市不同区域的人获取水果和蔬菜的经济机会可能存在差异,这使得农村居民和处境较差的城市居民处于最大的劣势;这反过来可能导致健康差距。研究结果表明,需要更好地了解区域层面的食品环境成分如何影响社会不平等。