The Validity and Reliability of the Chula COVID-19 Psychosocial Home Isolation Evaluation Tool (CCPHIET)

The growing number of cases presenting with COVID-19 during the pandemic has led to a significant shortage of hospital beds. Many patients may not require hospitalization and can be clinically observed in home settings. We have identified a set of psychosocial factors that correlate with unsuccessful home isolation (HI), which in turn might negatively affect the transmission control in the community. Therefore, we developed the Chula COVID-19 Psychosocial Home Isolation Evaluation Tool (CCPHIET), a new screening tool for assessing the psychosocial suitability for HI. This study examines the CCPHIET's validity and reliability.

This cross-sectional descriptive study included COVID-19 patients who were deemed to be medically safe for 14-days of HI. The CCPHIET is comprised of eight clinical domains pertinent to HI behavioral compliance and risk for non-adherence. We explored its statistical validity and reliability and discussed the potential utility of this tool.

A total of 65 COVID-19 patients participated in this study. Most patients (58.5%) were deemed to be appropriate candidates for HI according to the CCPHIET. The results of this study demonstrate that the CCPHIET has an acceptable content validity (IOC index > 0.5), moderate internal consistency (Cronbach's alpha = 0.611) and substantial to excellent inter-rater reliability (Intraclass correlation coefficient = 0.944, Cohen's kappa= 0.627).

CCPHIET is an easy-to-use tool for assessing the psychosocial suitability of patients advised for at-home isolation with mild and asymptomatic COVID-19. Its implementation can assist clinicians in identifying and redirecting resources to patients at the highest risk for breaking quarantine and save on unnecessary, costly absolute institutional quarantine for those deemed to be psychosocially fit for full adherence.