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Reliability and structural validity of the C hinese version of the N europsychiatric I nventory, N ursing H ome version
Author(s) -
Chen Suhong,
Lin Kai,
Wang Hanxiao,
Yamakawa Miyae,
Makimoto Kiyoko,
Liao Xiaoyan
Publication year - 2018
Publication title -
psychogeriatrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.647
H-Index - 32
eISSN - 1479-8301
pISSN - 1346-3500
DOI - 10.1111/psyg.12292
Subject(s) - apathy , dementia , irritability , clinical dementia rating , psychology , psychiatry , rating scale , clinical psychology , anxiety , medicine , cognition , developmental psychology , disease
Background With the increasing number of dementia patients in C hina, there is a pressing need for a reliable and valid C hinese instrument that can measure neuropsychiatric symptoms in institutionalized dementia patients. This study examined the reliability and structural validity of the C hinese version of the N europsychiatric I nventory, N ursing H ome version ( NPI‐NH ), in a sample of institutionalized dementia patients in C hina. Methods A total of 112 residents with dementia (Clinical Dementia Rating = 1: 10.7%; Clinical Dementia Rating = 2: 39.3%; Clinical Dementia Rating = 3: 50.0%) and 30 informants participated in this cross‐sectional study. Reliability was tested using C ronbach’s α and intra‐class correlation coefficient. Principal component analysis was used to evaluate the factor structure of the inventory. Results Of the patients, 92.9% had at least one neuropsychiatric symptom. Apathy (57%) was the most common symptom. The C hinese version of the N europsychiatric I nventory, N ursing H ome version, showed acceptable internal consistency ( C ronbach’s α for the total scale, frequency, severity, and disturbance subscales were 0.64, 0.70, 0.73, and 0.80, respectively) and test–retest reliability (intra‐class correlation coefficient for the total scale, frequency, severity, and disturbance subscales were 0.93, 0.92, 0.89, and 0.91, respectively). Five factors—psychomotor behaviour, affective symptoms, psychosis, sleep disorders, and eating disorders—were identified for the total scale. The cluster symptoms aggression and irritability, depression and anxiety, and delusions and hallucinations were three of the optimally stable groups of symptoms. Conclusions This study demonstrated that the C hinese version of the N europsychiatric I nventory, N ursing H ome version, is a valid and reliable instrument for evaluating neuropsychiatric symptoms in institutionalized dementia patients.