The effect of medical staff's professional identity on psychological stress during public health emergencies: The role of intolerance of uncertainty and adversity appraisal.

This study aims to explore the relationship between medical staff's professional identity and the psychological stress they feel during a public health emergency. It also examines the possible mediating effects of staff's intolerance of uncertainty (IU) and moderating effects of staff's adversity appraisal on this relationship. This study's 447 participants were surveyed via questionnaire. The results indicate that (1) medical staff's sense of their professional identity can negatively predict the psychological stress they feel during public health emergencies; (2) staff's IU mediates the relationship between professional identity and psychological stress; (3) the direct effects of professional identity and psychological stress were moderated by staff's adoption of positive appraisal strategies (negative appraisal strategies), and the direct effect was significant in medical staff who adopted a less positive appraisal strategy (more negative appraisal strategy). Therefore, professional identity was proven to affect staff's psychological stress through their IU, and staff's adversity appraisal plays a moderating role in the direct path of this effect.