Reliability and Validity of Persian Version of WHO Mass Gathering COVID-19 Risk Assessment Tool- generic Events in Iranian Population

The risk of transmission of COVID-19 infection significantly increases with mass gatherings during the pandemic. According to WHO recommendations, the decision to hold, modify, postpone, or cancel gatherings of any size during the COVID-19 pandemic should rely on a risk-based approach. WHO Mass Gathering COVID-19 Risk Assessment tool-Generic Events, to the best of our knowledge, has not been translated into Persian and its reliability and validity have not been determined in the Iranian population.

The present study aimed to assess the reliability and validity of the Persian version of the WHO Mass Gathering COVID-19 risk Assessment tool-Generic Events in the Iranian population.

The content and face validity of the final Persian version of the WHO Mass Gathering COVID-19 Risk Assessment tool- Generic Event, Version 2 (10 July 2020) was confirmed by five experts and the WHO office in Tehran, Iran. Then, the tool was completed by 17 Iranian adults on two occasions at least two weeks after a hypothetical mass gathering event. The participants were mainly selected from the personnel of the Iranian red crescent society. All of them had a bachelor's or higher university degree in health sciences. The data were analyzed using SPSS software and related statistical tests (Pearson correlation coefficient).

Risk evaluation and risk mitigation questions of the Persian version of the tool had high reliability on two occasions at least two weeks after a hypothetical mass gathering event based on the Pearson correlation coefficient (r=0.81, P-value=0.03 for risk evaluation and r=0.75, P-value=0.04 for risk mitigation questions based on their final scores).

The Persian version of the tool can be used to classify the risk of mass gatherings for COVID-19 infection.