Teleassessment of Disability and Health after Stroke: validation and reliability of the applicability of WHODAS 2.0 by video call

Research Objectives: To verify the validity and reliability of the WHODAS 2.0 assessment through video call

Design: Two evaluations were carried out, one in person and the other by video call. The reliability was analyzed using the Intraclass Correlation Coefficient (ICC2.1). Correlation between the two forms of application was analyzed to concurrent validity. The discriminant validity was estimated using the ROC curve.

Setting: There are no data on the validity and reliability of applicability of the World Health Disability Assessment Schedule (WHODAS-2.0) by teleassessment in stroke survivors.

Participants: Fifty individuals with chronic stroke with a mean age of 56.10±10.8 years were evaluated, equally distributed according to sex.

Interventions: Methodological and longitudinal study to analyze measurement properties. The research was carried out with survivors of chronic stroke
contemplating two assessments, one being face-to-face and the other by video call. The order of application was randomized.

Main Outcome Measures: The reliability between the different means of application was analyzed using the Intraclass Correlation Coefficient (ICC 2.1 ). For internal consistency, Cronbach's alpha. To analyze the concurrent validity, the correlation between the two forms of application was analyzed. The predictive validity was estimated using the ROC curve (Receiver Operating Characteristic), analyzing the diagnostic accuracy of the application of WHODAS 2.0 by video call to discriminate individuals with different levels of disability measured using the modified Rankin scale.

Results: Excellent reliability was obtained by comparing the two forms of application (ICC2.1=0.88; 95%CI=0.79-0.93; p<0.001). Adequate internal consistency was noted (Cronbach's α=0.87). Adequate concurrent validity was observed (rs=0.78; p<0.001). The predictive validity revealed adequate accuracy of the application by video call to discriminate different levels of disability (AUC=0.67; p=0.04).

Conclusions: Adequate validity and reliability were verified in the video call assessment, confirming that this may be an appropriate and viable method for use in the stroke population.

Author(s) Disclosures: Ariadne C. Silva, Léia C.de Oliveira, Heyriane M. dos Santos, Gabriela S. Pereira, Soraia M. Silva. The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.