目的:评价神经精神科问卷知情者版(Neuropsychiatric Inventory—Questionnaire,NPI—Q)中文译本的信度与效度。方法:从北京大学精神卫生研究所记忆中心的病例库中,选取51例符合NINCDS—ADR,DA诊断标准的阿尔茨海默病(probable AD)患者,接受简明智能精神状况检查(Mini—mental Status Exami—nation,MMSE)、日常生活活动量表(Activities of Daily Living,ADL)、阿尔茨海默病评定量表(Alzheimer’s disease Assessment Scale—Cognitive portion,ADAS—cog)、神经精神科问卷(Neuropsychiatric Inventory,NPI)评定,并由其知情者进行NPI—Q评分。其中16例在临床干预3个月后进行重测。结果:(1)NPI—Q克朗巴赫系数α=0.851,Guttman分半系数为0.825;NPI—Q总分重测信度为ICC=0.860(P〈0.01),NPI—Q苦恼程度总分重测信度ICC=0.480(P〉0.05)。(2)NPI—Q各条目评分之间的相关系数为0.01—0.97,均与总分呈正相关(r=0.33~0.87,P〈0.05)。NPI—Q各条目苦恼程度评分之间的相关系数为0.05—0.72,与苦恼程度总分正相关(r=0.47~0.90,P〈0.01)。NPI—Q严重程度总分与苦恼程度总分相关(r=0.78,P〈0.01)。NPI—Q严重程度评分与MMSE总分呈负相关(r=-0.39,P〈0.01),与ADL、ADAS.cog、NPI总分、NPI苦恼程度评分均相关(r=0.47~0.82,均P〈0.01)。NPI—Q苦恼程度评分与MMSE总分负相关(r=-0.32,P〈0.05),与ADL、ADAS—cog、NPI总分、NPI苦恼程度相关(r=0.29~0.68,P〈0.05)。因子分析提示NPI—Q含有精神病性、情感损害和额叶功能3个因子,总贡献率达62.23%。结论:神经精神科问卷知情者版中文泽本具有较好的信度和效度,值得推广应用。
Objective: To evaluate the reliability and validity of Chinese version of Neuropsychiatric Inventory-Questionnaire ( NPI-Q) . Methods: Fifty-one patients meeting criteria of probable Alzheimer's disease ( AD ) of the National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer' s disease and Related Disorders Association (NINCDS-ADRDA) were studied. All patients were drawn from database of Dementia Care and Research Center at Peking University Institute of Mental Health. Each subject was administered with the Mini-mental Status Examination (MMSE), Activities of Daily Living ( ADL), Alzheimer's disease Assessment Scale-Cognitive portion ( ADAS-Cog), and Neuropsychiatric Inventory ( NPI ) . The informants completed rating with NPI-Q. Sixteen subjects were retested at 3 months after initial assessment. Results : ( 1 ) Reliability. The coefficient of inter-item consistency (Cronbach's α) was 0. 851 , and the Guttman split-half reliability was 0. 825. The test-retest reliability of NPI-Q total score inter-rater reliability (ICC) was 0. 860 ( P 〈 0. 01 ), and test-retest reliability of NPI-Q total distress score ICC was 0. 480 ( P 〉 0. 05). ( 2 ) Validity. The item scores of severity of NPI- Q were correlated with each other ( r = 0. 01 - 0. 97 ), and with total score of NPI-Q significantly ( r = 0. 33 - 0. 87, P 〈 0. 05 ) . The item scores of distress of NPI-Q were correlated with each other ( r = 0.05 - 0. 72 ), and with total score of distress significantly ( r = 0. 47 - 0.90, P 〈 0. 01 ) . For all items, the scores of distress were correlated with scores of severity significantly ( r =0. 60 -0. 86, P 〈0. 01 ) . The total score of NPI-Q severity was correlated with total score of distress ( r = 0. 78, P 〈 0. 01 ) . The total score of NPI-Q severity was negatively associated with total score of MMSE ( r = - 0. 39, P 〈 0. 01 ) , positively with total score of ADL, ADAS-cog, NPI an