A nationwide study in Sweden showed the risk of death doubled in patients with chronic disease and co-occurring psychiatric disorders.

Risk of Death Doubled in Patients with Chronic Disease and Co-occurring Psychiatric Disorders – University of Oxford

Original Study: Psychiatric comorbidity and risk of premature mortality and suicide among those with chronic respiratory diseases, cardiovascular diseases, and diabetes in Sweden: A nationwide matched cohort study of over 1 million patients and their unaffected siblings – PLOS Medicine