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The Brazilian version of the Neuropsychiatric Inventory-Clinician rating scale (NPI-C): reliability and validity in dementia

机译：巴西版本的神经精神病学量表-临床医生评分量表（NPI-C）：痴呆症的信度和效度

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Background: Patients with dementia may be unable to describe their symptoms, and caregivers frequently suffer emotional burden that can interfere with judgment of the patient's behavior. The Neuropsychiatric Inventory-Clinician rating scale (NPI-C) was therefore developed as a comprehensive and versatile instrument to assess and accurately measure neuropsychiatric symptoms (NPS) in dementia, thereby using information from caregiver and patient interviews, and any other relevant available data. The present study is a follow-up to the original, cross-national NPI-C validation, evaluating the reliability and concurrent validity of the NPI-C in quantifying psychopathological symptoms in dementia in a large Brazilian cohort. Methods: Two blinded raters evaluated 312 participants (156 patient-knowledgeable informant dyads) using the NPI-C for a total of 624 observations in five Brazilian centers. Inter-rater reliability was determined through intraclass correlation coefficients for the NPI-C domains and the traditional NPI. Convergent validity included correlations of specific domains of the NPI-C with the Brief Psychiatric Rating Scale (BPRS), the Cohen-Mansfield Agitation Index (CMAI), the Cornell Scale for Depression in Dementia (CSDD), and the Apathy Inventory (AI). Results: Inter-rater reliability was strong for all NPI-C domains. There were high correlations between NPI-C/delusions and BPRS, NPI-C/apathy-indifference with the AI, NPI-C/depression-dysphoria with the CSDD, NPI-C/agitation with the CMAI, and NPI-C/aggression with the CMAI. There was moderate correlation between the NPI-C/aberrant vocalizations and CMAI and the NPI-C/hallucinations with the BPRS. Conclusion: The NPI-C is a comprehensive tool that provides accurate measurement of NPS in dementia with high concurrent validity and inter-rater reliability in the Brazilian setting. In addition to universal assessment, the NPI-C can be completed by individual domains.
机译：背景：痴呆症患者可能无法描述其症状，并且护理人员经常遭受情绪负担，这可能会干扰对患者行为的判断。因此，神经精神病学库存量表-临床医生评分量表（NPI-C）被开发为评估和准确测量痴呆症的神经精神病学症状（NPS）的综合和通用工具，从而使用了来自看护者和患者访谈的信息以及任何其他相关可用数据。本研究是对原始的，跨国的NPI-C验证的后续，评估了NPI-C在量化巴西大型队列中痴呆症的心理病理症状方面的可靠性和同时有效性。方法：两名不知情的评估者使用NPI-C对312个参与者（156个患者可知的告知者二元组）进行了评估，在巴西的五个中心进行了624项观察。评估者间的可靠性是通过NPI-C域和传统NPI的类内相关系数确定的。收敛效度包括NPI-C特定领域与简要精神病学量表（BPRS），科恩-曼斯菲尔德激动指数（CMAI），康奈尔抑郁症抑郁量表（CSDD）和无动于量表（AI）的相关性。结果：所有NPI-C域的评估者间可靠性都很高。 NPI-C /妄想与BPRS，NPI-C / apathy-indiff与AI，NPI-C /抑郁症与CSDD，NPI-C /激动与CMAI和NPI-C /侵略之间具有高度相关性与CMAI。 NPI-C /异常发声和CMAI与BPRS的NPI-C /半透明之间存在适度的相关性。结论：NPI-C是一种综合性工具，可在巴西环境中提供对痴呆症中NPS的准确测量，并发效度和评估者间可靠性高。除了普遍评估之外，NPI-C可以由各个领域完成。

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