微型营养评价量表在社区老年人群中的信效度评价  

Reliability and validity of MNA scale used in community elderly

作　　者：袁华财 张甜甜 郭冬梅[3] 张欢欢 沈德嫱 陈立勇[5] 蔺新英[1] YUAN Huacai;ZHANG Tiantian;GUO Dongmei;ZHANG Huanhuan;SHEN Deqiang;CHEN Liyong;LIN Xinying(Department of Nutrition and Food hygiene,School of Public Health,Shandong University,Jinan 250012,Shandong,China;Department of Clinical Nutrition,Center for Reproductive Medicine,Shandong University,Jinan 250001,Shandong,China;Experimental Teaching Center of Preventive Medicine,School of Public Health,Shandong University,Jinan 250012,Shandong,China;Department of Clinical Nutrition,the First Hospital of Lianyungang,Lianyungang 222002,Jiangsu,China;Department of Clinical Nutrition,Shandong Provincial Hospital Affiliated to Shandong University,Jinan 250021,Shandong,China)

机构地区：[1]山东大学公共卫生学院营养与食品卫生学系,山东济南250012 [2]山东大学附属生殖医院临床营养科,山东济南250001 [3]山东大学公共卫生学院预防医学教学实验中心,山东济南250012 [4]连云港市第一人民医院临床营养科,江苏连云港222002 [5]山东大学附属省立医院临床营养科,山东济南250021

出　　处：《山东大学学报（医学版）》2018年第9期77-82,共6页Journal of Shandong University:Health Sciences

基　　金：科技部基础专项(2015FY111600)

摘　　要：目的评价微型营养评价(MNA)量表在社区老年人群中的信效度,为研制符合我国社区老年人特点的营养评价工具进行前期探索。方法随机抽取济南市社区老年人550例,最终获得有效样本544例。应用MNA量表评价其营养状况,检测人体测量指标和实验室指标,评价MNA量表的信度、结构效度、校标关联效度。结果M NA量表Cronbachsα系数0.287,探索性因子分析得到9个公因子,累积因子贡献率60.94%。因子分析显示条目MNA14、MNA17因子载荷低于0.4,MNA得分与体质量指数、上臂肌围、小腿围等客观指标具有相关性,以BM I和血清白蛋白作为营养状况的评价客观标准,M NA量表发现营养不良风险老年人的灵敏度0.884,特异度为0.683,两种方法评价营养状况的kappa值为0.215。条目分析显示条目M NA6、M NA9、M NA10、M NA12与总分的关联程度不密切。结论 MNA量表信度和效度不理想,不适用于直接评价济南社区老年人的营养状况,但可以此为基础进行改良。Objective To assess the reliability and validity of mini nutritional assessment（ MNA） scale in community elderly,and to lay the foundation for the development of the newnutrition screening tool suitable for Chinese community elderly. Methods A total of 550 elderly in communities of Jinan were randomly selected and 544 were finally analyzed in our study. MNA scale was used to assess the nutrition status. Anthropometric parameters and laboratory indexes were also measured. The reliability,construct validity and criterion-related validity were calculated and assessed.Results Cronbach＇s α coefficient of MNA scale was 0. 287. Factor analysis yields 9 common factors. Cumulative factor contribution rate was 60. 94%. Factor analysis indicated that the factor loads of some items（ MNA14 and MNA17）were less than 0. 4. There were significant correlations between total MNA score and BM I,M AC and CC. Using BM Iand serum albumin as objective criteria for assessing nutritional status,the sensitivity of malnutrition by MNA in older adults was 0. 884 with a specificity of 0. 683. Kappa value of two methods above for evaluating nutritional status was 0.215. Item analysis suggested that the scores of MNA6,MNA9,MNA10 and MNA12 were not related to total score.Conclusion Although the reliability and validity of MNA indicate this scale is not a reliable assessment tool for nutrition assessment of Chinese community elderly,it is still the cornerstone of the following revise process.

关 键 词：微型营养评价法 社区老年人 信度 效度 营养状况 

分 类 号：R153.3[医药卫生—营养与食品卫生学]