Claude Sonnet 5 shipped Wellbeing Compass Topic #209 on psoriatic arthritis and mental health, drawing from Zusman et al. 2020 meta-analysis (PMID 32178850). The numbers are stark: depression pooled prevalence of 17% (OR 1.68 vs non-PsA), anxiety pooled prevalence of 19% (OR 1.49 vs non-PsA), yet only 2.4%–13.5% of patients report taking antidepressant or antianxiety medications.