神经精神症状问卷中文版的信度和效度

目的 评估神经精神症状问卷中文版(Chinese version of the neuropsychiatric inventory,CNPI)的信度和效度.方法 对2004年至2008年间到上海交通大学医学院附属精神卫生中心就诊的219例阿尔茨海默病(AD)患者的照料者进行CNPI的测试,每例被测试者在4周后均进行重测.应用SPSS11.0统计软件进行信效度分析.结果 CNPI症状分问卷Cronbach α系数为0.69,CNPI苦恼分问卷Cronbach α系数为0.72.重测相关系数在0.66～0.98之间(P<0.001),其中症状分问卷总分相关系数为0.96(P<0.001),苦恼分问卷总分相关系数为0.94(P<0.001);对症状分问卷12个条目进行主轴因子分析产生5个公因子,累积解释变异量为67.0%;对苦恼分问卷12个条目进行主轴因子分析也产生5个公因子,累积解释变异量为70.2%.结论 CNPI的同质性信度和重测信度较高,内容效度和结构效度较好.

Reliability and validity of Chinese version of the neuropsychiatric inventory

Objective To assess the reliability and validity of the Chinese version of the neuropsychiatric inventory (CNPI). Methods The CNPI was administered to 219 caregivers of patients with Alzheimer's disease (AD). Each caregiver was retested 4 weeks after initial testing. Results The Cronbach a coefficient of the total symptom scale was 0.69. The Cronbach α coefficient of the total caregiver distress subscale was 0.72. The Cronbach α coefficient of the entire inventory was 0. 82. The test-retest coefficients ranged from 0.66 to 0.98 (P < 0.01). Principal axis factoring analysis of the symptom subscale yielded a five-factor solution which contributed to 67.0% of the cumulative variance. Factor 1, which included aberrant motor behavior, hallucinations, delusion and irritability had the most significant contribution to the cumulative variance. Principal axis factoring analysis of the caregiver distress subscale also yielded a five-factor solution which contributed to 70.2% of the cumulative variance. Factor 1, which included depression, delusion, sleep/night behavior, aberrant motor behavior, and irritability had the most significant contribution to the cumulative variance. Conclusion This Chinese version of NPI is a reliable and valid tool for measuring neuropsychiatric disturbances in patients with AD.