Abstract
The present COVID-19 epidemic is a threat to physical health and brings a drain to Quality of life and mental health in the general population. However, changes in Quality of life and mental health status due to pandemic-related is less known. This study was implemented to investigate and predict changes in the Quality of life and psychological changes in people worldwide due to the pandemic. 3002 individuals participated in an online survey. The result showed that Quality of life is significantly decreased over time, meanwhile perceived stress level is raised significantly, and an increased level of difficulty in emotion regulation has happened. Almost everyone faced with increased perceived stress and current quarantine experience were significant predictors of perceived stress escalation. Younger people and individuals who had a worsening quality of life response tended to show more stress and emotion regulation problems. Furthermore, prediction models show that by extending the time of quarantine, Quality of life will worsen, and therefore the rate of perceived stress will be higher, and the problem with emotion regulation will arise more. As the whole world faces the pandemic, this research provides several implications for public mental health intervention.