Department of Nutrition & Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing 100191, China.
Nutrients. 2022 May 5;14(9):1933. doi: 10.3390/nu14091933.
The purpose of this study aimed to develop and validate the Food and Nutrition Literacy Questionnaire for Chinese adults (FNLQ). The dimensions and core components of Food and Nutrition Literacy were constructed though literature review and qualitative consensus study. A cross-sectional survey of 8510 participants was conducted. The reliability of the questionnaire was determined by internal consistency, the construct validity was assessed by exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), and the content validity was assessed by the Pearson correlation coefficient. From the literature review and qualitative methods, 20 core components and 50 questions of the FNLQ were developed, including 1 dimension of knowledge and 3 practice dimensions (ability of selection, preparing food and eating). The overall FNLQ questionnaire had good reliability and validity (Cronbach’s α = 0.893, χ2/DF = 4.750, RMSEA = 0.048, GFI = 0.891 and AGFI = 0.876). The average FNLQ score of all participants was (64.08 ± 12.77), and the score for the knowledge and understanding dimension was higher than that for the practice dimensions. In addition, 80 was set as the nutritional literacy threshold, and only 12.2% met this threshold in this survey. Sociodemographic and health status characteristics were predictors of FNLQ (R2 = 0.287, F = 244.132, p < 0.01). In conclusion, the FNLQ built in this study had good validity and reliability. It could be considered as a reliable tool to assess Food and Nutrition Literacy of Chinese adults.
本研究旨在开发和验证适合中国成年人的食物与营养素养问卷（FNLQ）。通过文献回顾和定性共识研究构建了食物与营养素养的维度和核心组成部分。对 8510 名参与者进行了横断面调查。通过内部一致性确定问卷的信度，通过探索性因子分析（EFA）和验证性因子分析（CFA）评估结构效度，通过 Pearson 相关系数评估内容效度。从文献回顾和定性方法中，开发了 FNLQ 的 20 个核心组成部分和 50 个问题，包括知识维度和 3 个实践维度（选择能力、准备食物和进食能力）。总的 FNLQ 问卷具有良好的信度和效度（Cronbach's α = 0.893，χ2/DF = 4.750，RMSEA = 0.048，GFI = 0.891 和 AGFI = 0.876）。所有参与者的平均 FNLQ 得分为（64.08 ± 12.77），知识和理解维度的得分高于实践维度。此外，将 80 设定为营养素养阈值，而在这项调查中只有 12.2%的人达到了这一阈值。社会人口统计学和健康状况特征是 FNLQ 的预测因素（R2 = 0.287，F = 244.132，p < 0.01）。总之，本研究构建的 FNLQ 具有良好的有效性和可靠性。它可以被认为是评估中国成年人食物与营养素养的可靠工具。
