Reliability of a Survey Tool for Measuring Consumer Nutrition Environment in Urban Food Stores
Reliability of a Survey Tool for Measuring Consumer Nutrition Environment in Urban Food Stores
复制标题
DOI：
10.1097/phh.0b013e3182053d00
复制
发表时间：
2011-09-01
影响因子：
3.3
通讯作者：
Dharssi, Aliza
中科院分区：
文献类型：
--
作者：
Hosler, Akiko S.;Dharssi, Aliza
目的：尽管食品环境研究的数量和重要性增加，但普遍缺乏可靠的测量工具。本研究提出了一种测量城市食品商店消费者营养环境的工具的开发和可靠性评估。设计：横截面设计。环境：纽约奥尔巴尼的一个种族多样化的市中心部分（6个邮政编码区）。参与者：我们的研究小组在2009年至2010年访问了39家食品商店。这些商店是从123家合格的食品商店中随机挑选出来的，这些食品商店是通过多个政府名单和实地调查确定的。主要结局指标：食品零售店调查工具的开发，以评估选定的食品和非食品项目，位置，牛奶价格，商店的物理特性，政策的执行情况，并在外面的窗口广告的存在。对于店内物品，评估了经验丰富的测量员和训练有素的测量员之间的观察结果一致性。对于橱窗广告评估，评估了受过轻度培训的调查员之间的方法间一致性（现场草图与数码照片）和评分员间一致性（均为现场）。计算店内观察结果的一致性百分比、Kappa和患病率调整偏倚调整Kappa。计算窗口观察的组间相关系数。结果：47个店内项目中有27个100%一致。流行率调整偏倚调整Kappa值显示，除通道宽度（0.74）和深绿色/橙子颜色的新鲜蔬菜（0.85）外，所有项目的一致性都很好（>= 0.90）。商店类型（非便利店），访问顺序（前半部分）和完成调查的时间（>10分钟）与这两个项目的可靠性较低相关。窗口广告的方法间和评分者间一致性均较高（组内相关系数范围为0.94-1.00），表明可靠性较高。结论：食品零售店调查工具是快速测量消费者营养环境的可靠工具。参加30分钟的小组简报并与3至4家商店一起练习的个人可以有效地使用它。
Objective: Despite the increase in the volume and importance of food environment research, there is a general lack of reliable measurement tools. This study presents the development and reliability assessment of a tool for measuring consumer nutrition environment in urban food stores. Design: Cross-sectional design. Setting: A racially diverse downtown portion (6 ZIP code areas) in Albany, New York. Participants: A sample of 39 food stores was visited by our research team in 2009 to 2010. These stores were randomly selected from 123 eligible food stores identified through multiple government lists and ground-truthing. Main Outcome Measures: The Food Retail Outlet Survey Tool was developed to assess the presence of selected food and nonfood items, placement, milk prices, physical characteristics of the store, policy implementation, and advertisements on outside windows. For in-store items, agreement of observations between experienced and lightly trained surveyors was assessed. For window advertisement assessments, inter-method agreement (on-site sketch vs digital photo), and inter-rater agreement (both on-site) among lightly trained surveyors were evaluated. Percent agreement, Kappa, and prevalence-adjusted bias-adjusted kappa were calculated for in-store observations. Interclass correlation coefficients were calculated for window observations. Results: Twenty-seven of the 47 in-store items had 100% agreement. The prevalence-adjusted bias-adjusted kappa indicated excellent agreement (>= 0.90) on all items, except aisle width (0.74) and dark-green/orange colored fresh vegetables (0.85). The store type (nonconvenience store), the order of visits (first half), and the time to complete survey (>10 minutes) were associated with lower reliability in these 2 items. Both the inter-method and inter-rater agreements for window advertisements were uniformly high (intraclass correlation coefficient ranged 0.94-1.00), indicating high reliability. Conclusions: The Food Retail Outlet Survey Tool is a reliable tool for quickly measuring consumer nutrition environment. It can be effectively used by an individual who attended a 30-minute group briefing and practiced with 3 to 4 stores.