Wong Adrian, Cheng Sheung-Tak, Lo Eugene S K, Kwan Pauline W L, Law Lorraine S N, Chan Anne Y Y, Wong Lawrence Ka-Sing, Mok Vincent
Department of Psychological Studies, The Hong Kong Institute of Education, Tai-po, Hong Kong SAR, China Center for Psychosocial Health and Aging, The Hong Kong Institute of Education, Tai-po, Hong Kong SAR, China.
Department of Health and Physical Education, The Hong Kong Institute of Education, Tai-po, Hong Kong SAR, China.
J Geriatr Psychiatry Neurol. 2014 Dec;27(4):247-52. doi: 10.1177/0891988714532017. Epub 2014 Apr 24.
This study examined the validity and reliability of the Neuropsychiatric Inventory Questionnaire version (NPI-Q), a proxy-reported format of the interview-based NPI, in assessing neuropsychiatric symptoms in 173 patients with stroke or transient ischemic attack (TIA) having cognitive impairment. The NPI-Q was validated against the NPI as a gold standard. Informants took approximately 7 minutes to complete the NPI-Q. Bland-Altman analysis revealed a bias of 0.7 points, with 95% limits of agreement between -8.6 and 10.0 between the total symptom scores of the NPI and NPI-Q. The NPI-Q correlated significantly with the NPI in individual and total symptom scores and caregiver distress scores. In predicting presence of symptoms on the NPI, the NPI-Q yielded, on average, sensitivity of 74.1% and specificity of 79.5%. On the NPI-Q, informants tended to overreport symptoms in patients with less severe symptoms but underreport with increasing symptom severity. Internal consistency of the NPI-Q was acceptable (Cronbach's α = 0.756). One-week test-retest reliability of the NPI-Q was excellent (intraclass correlation coefficient = .990). The NPI-Q is a valid and reliable instrument for screening neuropsychiatric symptoms in patients with stroke and TIA.
本研究检验了神经精神科问卷量表(NPI-Q)这一基于访谈的NPI的代理报告形式,在评估173例患有认知障碍的中风或短暂性脑缺血发作(TIA)患者的神经精神症状方面的有效性和可靠性。以NPI作为金标准对NPI-Q进行验证。信息提供者完成NPI-Q大约需要7分钟。Bland-Altman分析显示偏差为0.7分,NPI和NPI-Q的总症状得分之间的95%一致性界限在-8.6至10.0之间。NPI-Q在个体症状得分、总症状得分及照料者痛苦得分方面与NPI显著相关。在预测NPI上症状的存在时,NPI-Q平均产生的灵敏度为74.1%,特异度为79.5%。在NPI-Q上,信息提供者往往对症状较轻的患者过度报告症状,但随着症状严重程度增加而少报。NPI-Q的内部一致性是可接受的(Cronbach's α = 0.756)。NPI-Q的一周重测信度极佳(组内相关系数 = 0.990)。NPI-Q是筛查中风和TIA患者神经精神症状的有效且可靠的工具。