中文版学龄前儿童营养指数量表的信度和效度研究

Reliability and validity of a Chinese version of nutrition quotient for preschoolers

背景学龄前儿童饮食生活方式需要日常监测并进行引导,但是目前国内尚缺乏高效、便捷的工具来综合量化这一方面的水平。目的 引进韩国版学龄前儿童营养指数量表(NQ-P),并分析其信度和效度。设计横断面研究。方法对英文版NQ-P进行翻译、文化调适,选择2家幼儿园的学龄前儿童家长进行中文版NQ-P量表调查和信效度分析。主要结局指标中文版NQ-P评分。结果 中文版NQ-P量表计算评分和加权方式与原版一致,共14个条目,分为3个领域(平衡、节制、环境)。共440名(97.3%)3~6.5岁儿童家长提供了有效问卷,男童占比51.8%。参与调查的家长72.0%为母亲,282名(64.1%)为儿童的主要饮食负责人。验证性因子分析结果显示,3个领域总分的CFI为0.768,RMSEA为0.063,单个领域评分的CFI为0.905~0.909,RMSEA为0.031~0.043。总分和单个领域的Cronbach’s α系数为0.706~0.774,14个条目的重测Kappa值为0.79~0.98。结论 中文版NQ-P量表效度和信度较好,可用于针对中国家长的学龄前儿童饮食行为质量的初步评估。

Background Preschoolers are experiencing a key period of shaping healthy dietary behaviors,for which daily monitoring and timely intervention is urgently required.However,there is a lack of efficient tools for quantifying this level in China so far.Objective To introduce a scale questionnaire named Nutrition Quotient for Preschoolers from the South Korea(NQ-P),and evaluate its reliability and validity.Design Cross-sectional study.Methods The Chinese version of NQ-P was obtained after forward and backward translation,research group review and modification.Guardians of preschoolers in two kindergartens were cross-sectionally investigated and the data was collected for reliability and validity analysis.Main outcome measures NQ-P(Chinese version)scores.Results The Chinese version of NQ-P used the same scoring and weighting method as the original version,which included 14 items and 3 dimensions(balance,moderation,environment).A total of 440 guardians of preschoolers aged 3-6.5 years completed the study(97.3%).Among 440,51.8%were boys,and among those who filled the questionnaires,317(72.0%)were mothers,115(26.1%)were fathers,and 282 of them were primary meal planners.Confirmatory factor analysis showed CFI were 0.768 for NQ-P total score,0.905-0.909 for 3 dimensions,RMSEA were 0.063 for NQ-P total score and 0.031-0.043 for 3 dimensions.Cronbach'sαwere 0.706-0.774 for NQ-P scores.Re-test Kappa were 0.79-0.98 for 14 items.Conclusions The Chinese version of NQ-P has acceptable validity and reliability,and can be used to initially evaluate the dietary quality of preschoolers by investigating their guardians.