Fig. 1From: Increased cannabis intake during the COVID-19 pandemic is associated with worsening of depression symptoms in people with PTSD Comparison of  perceived mean stress symptoms scores on the PSS10 across the cannabis use groups at both time referents (before and during the pandemic). A significant main effect of time referent was observed on PSS10 scores, F(1,411) = 12.948, p < 0.001 with a small effect size (η2p = 0.031). Note.***p < 0.001Back to article page