Objective: To examine the association between PSC and psychological distress, and decompose this relationship into direct, indirect and interaction pathways involving workplace MH stigma. Method: A cross-sectional survey assessed 999 Canadian workers. Mediation was explored using a model-based potential outcomes approach, while moderation was analysed via logistic regression. Results: The risk difference in psychological distress between high- and low-risk PSC environments was 0.122. Of this effect, 66.7% was direct, 12.9% was mediated by stigma, and 20.4% reflected PSC–stigma interaction. The stigma–distress association was stronger in high-risk PSC environments (OR = 3.58 1.91–6.70) than in low-risk environments (OR = 2.10 1.04–4.23). Conclusions: The majority of the association between PSC and distress is not via MH stigma, while the strength of the stigma–distress association varied by PSC level.
Song et al. (Mon,) studied this question.