Zhang Wenjuan, Wu Yan, Zhang Yibao, Sun Ziyu, Wang Jiaqi, Wu Yuhong
School of Public Health and Nursing, Hangzhou Normal University, Hangzhou, China.
Department of Endocrinology, Zhejiang Greentown Cardiovascular Disease Hospital, Hangzhou, China.
Front Public Health. 2025 May 13;13:1569675. doi: 10.3389/fpubh.2025.1569675. eCollection 2025.
Nutrition literacy is an important predictor of eating behavior in patients with type 2 diabetes. However, current methods lack rigorously validated tools to assess nutrient literacy in this group. Therefore, the aim of this study was to develop and validate the Nutrition Literacy Scale for patients with type 2 diabetes mellitus.
This study was divided into two phases, including the generation of the items and the validation of the scales. The generation of the items was developed through a literature study, semi-structured interviews, a Delphi expert consultation, and a small-sample pre-survey. Convenience sampling method was used to select a large sample of 576 patients in Hangzhou for item analysis, reliability and validity tests.
The formal scale covered 4 dimensions with 31 items. The exploratory factor analysis extracted four common factors with a cumulative variance contribution of 62.725%; the results of the confirmatory factor analysis showed that the model fit was good, the content validity of the scale was 0.957. The calibration correlation validity of the newly developed scale with the Adult Nutrition Literacy Measurement Scale was 0.760. Cronbach's coefficient was 0.946, and re-test reliabilitiy was 0.884.
The nutrition literacy scale for people with type 2 diabetes has good reliability and validity and is suitable for assessing the level of nutrition literacy in relevant populations.
营养素养是2型糖尿病患者饮食行为的重要预测指标。然而，目前的方法缺乏经过严格验证的工具来评估该群体的营养素养。因此，本研究的目的是开发并验证2型糖尿病患者营养素养量表。
本研究分为两个阶段，包括条目生成和量表验证。条目生成通过文献研究、半结构化访谈、德尔菲专家咨询和小样本预调查来开展。采用便利抽样法选取杭州市576例患者的大样本进行条目分析、信效度检验。
正式量表涵盖4个维度，共31个条目。探索性因子分析提取出4个共同因子，累积方差贡献率为62.725%；验证性因子分析结果显示模型拟合良好，量表的内容效度为0.957。新开发量表与成人营养素养测评量表的校标关联效度为0.760。Cronbach's系数为0.946，重测信度为0.884。
2型糖尿病患者营养素养量表具有良好的信效度，适用于评估相关人群的营养素养水平。
