World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is an assessment tool and it has been applied for disability status assessment of Taiwanese
dementia patients since July 2012. The aim of this study was to investigate the predicting accuracy of WHODAS 2.0 for
institutionalization of
dementia patients.Of these patients, 13,774 resided in a community and 4406 in a
long-term care facility. Demographic data and WHODAS 2.0 standardized scores were analyzed using the Chi-square test and independent t test to compare patients with
dementia in an institution with those in a community. The receiver operating characteristic (ROC) curve was applied to investigate accuracy in predicting
institutionalization, and the optimal cutoff point was determined using the Youden index. Binary logistic regression was used to analyze variables to determine risk factors for the
institutionalization of patients with
dementia.WHODAS 2.0 scores in all domains were higher in patients with
dementia in a
long-term care facility than in those in a community (P < 0.01). The ROC curve showed moderate accuracy for all domains of WHODAS 2.0 (area under curve 0.6~0.8). Binary logistic regression revealed that the male gender, severity of disease, and standardized WHODAS 2.0 scores surpassing the cutoff values were risk factors for the
institutionalization of patients with
dementia.Although the accuracy of WHODAS 2.0 in predicting
institutionalization is not considerably high for patients with
dementia, our study found that the WHODAS 2.0 scores, the male gender, education status, urbanization level, and severity of disease were risk factors for
institutionalization in
long-term care facilities.