Objective To translate the English version of the Perceptions Regarding Investigational Screening for Memory in Primary Care(PRISM-PC)questionnaire into Chinese,and to test the reliability and validity of it,in order to introduce the Chinese version of the PRISM-PC questionnaire and provide the basis for developing an assessment tool of the attitude toward dementia screening in China.Methods The Chinese version of the PRISM-PC questionnaire(initial version) was developed by translating based on the principles of Brislin translation method,and revising based on cultural adaptation and semantic analysis.During January to June 2015,a total of 225 elderly community residents who met the inclusion criteria were recruited by convenient sampling from Yinghe Road Community,Wenhuagong Road Community,Gongren Road Community and Ribao Community in Zhengzhou(a city in China),and were investigated by the Demographic Data questionnaire and Chinese version of the PRISM-PC questionnaire(initial version).A total of 225 questionnaires were issued,and 215 valid questionnaires were collected with a response rate of 95.6%.Thirty subjects were selected from the 215 ones by random number table method,and were re-surveyed by the Chinese version of the PRISM-PC questionnaire(initial version) 2 weeks later.Extreme group approach and correlation analysis were used for item analysis;expert evaluation method was adopted for content validity analysis;KMO test,Bartlett′s Test of Sphericity,and exploratory factor analysis were employed for structural validity analysis,and internal consistency reliability and retest reliability were used for reliability analysis.Results The subjects were divided into high-score group(60 cases) and low-score group(59 cases) by extreme group approach.The scores of items 1-20,item 22,item 25,and items 28-34 of Chinese version of the PRISM-PC questionnaire(initial version) were lower in the low-score group than those in the high-score group(P<0.05);while the scores of items 21,24 and 26 of Chinese version of the PRISM-PC guestionnaire(inital version) did not differ significantly between the two groups(P>0.05).The scores of each item of Chinese version of the PRISM-PC questionnaire(initial version) presented positive correlation with the total score(P<0.05).As the correlation coefficients of items 21,24,and 26 with the total score of Chinese version of the PRISM-PC questionnaire(initial version) were less than 0.4,the 3 items were deleted,then the Chinese version of the PRISM-PC questionnaire(initial version 1) was developed.The content validity index(CVI) of items of Chinese version of the PRISM-PC questionnaire(initial version 1) ranged from 0.83 to 1.00.The KMO value of Chinese version of the PRISM-PC questionnaire(initial version 1) was 0.742,and results of Bartlett′s Test of Sphericity were χ2=3 230.012,df=406,P<0.001,all demonstrated that the Chinese version of the PRISM-PC questionnaire(initial version 1) was suitable for exploratory factor analysis.Five common factors were extracted based on the factor extraction principle by the principal component analysis and varimax rotation,which could explain 72.213% of the total variance,with the load values of items of 0.578 to 0.931.The Cronbach′s α of Chinese version of the PRISM-PC questionnaire(initial version 1) was 0.876,and the Cronbach′s α of dimensions were 0.724-0.944.The retested reliability of Chinese version of the PRISM-PC questionnaire(initial version 1) was 0.739.After adjusting the names of items of Chinese version of the PRISM-PC questionnaire(initial version 1),the Chinese version of the PRISM-PC questionnaire(final version) was developed,which consisted of 5 dimensions covering 29 items,specifically,acceptance of dementia screening(6 items),benefits of dementia screening(8 items),stigma of dementia screening(7 items),negative impact of dementia screening on independence(4 items) and suffering related to dementia screening(4 items).Conclusion The Chinese version of the PRISM-PC questionnaire has acceptable reliability and validity,which is suitable for assessing the attitude toward dementia screening in elderly community residents in China.%目的 翻译社区失智症筛查感知(PRISM-PC)问卷,并对其进行信度、效度检测,以期引进中文版PRISM-PC问卷,为我国制定失智症筛查态度的评估工具提供基础.方法 通过Brislin法翻译,经文化调适、语义分析后形成中文版PRISM-PC问卷(初始版).2015年1-6月,采用便利抽样法选取郑州市颍河路社区、文化宫路社区、工人路社区、日报社区符合纳入标准的老年人225例为调查对象.采用一般资料调查问卷、中文版PRISM-PC问卷(初始版)对其进行调查.共发放问卷225份,回收有效问卷215份,有效回收率为95.6%.采用随机数字表法从215例被调查者中选取30例,间隔2周后采用中文版PRISM-PC问卷(初始版)对其进行再次调查.采用极端组法和相关性分析进行项目分析;采用专家评价法进行内容效度分析;采用KMO检验、Bartlett′s球形检验、探索性因子分析进行结构效度分析;采用内部一致性信度、重测信度进行信度分析.结果 采用极端组法将被调查者分为高分组(60例)和低分组(59例);低分组中文版PRISM-PC问卷(初始版)条目1~条目20、条目22、条目25、条目28~条目34得分均低于高分组(P<0.05);低分组与高分组中文版PRISM-PC问卷(初始版)条目21、条目24、条目26得分比较,差异均无统计学意义(P>0.05).中文版PRISM-PC问卷(初始版)各条目得分与其总分均呈正相关(P<0.05);但中文版PRISM-PC问卷(初始版)条目21、条目24、条目26得分与中文版PRISM-PC问卷(初始版)总分的相关系数均<0.4,予以删除,形成中文版PRISM-PC问卷(初始版1).中文版PRISM-PC问卷(初始版1)各条目的内容效度指数(CVI)为0.83~1.00.中文版PRISM-PC问卷(初始版1)的KMO值为0.742,Bartlett′s球形检验χ2=3 230.012,df=406,P<0.001,说明适合进行探索性因子分析.通过主成分分析和最大方差正交旋转法,根据因子提取原则,共提取5个公因子,累积方差贡献率为72.213%,各条目载荷值为0.578~0.931.中文版PRISM-PC问卷(初始版1)的内部一致性信度Cronbach′s α系数为0.876,各维度的Cronbach′s α系数为0.724~0.944.中文版PRISM-PC问卷(初始版1)的重测信度为0.739.调整中文版PRISM-PC问卷(初始版1)的条目名称,形成中文版PRISM-PC问卷(最终版),包括5个维度、29个条目,分别为失智症筛查的接受度(6个条目)、失智症筛查的益处(8个条目)、失智症筛查的羞耻感(7个条目)、失智症筛查对独立性的消极影响(4个条目)、失智症筛查带来的痛苦(4个条目).结论 中文版PRISM-PC问卷具有良好的信效度,适用于我国社区老年人对失智症筛查态度的测评.
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