Iwagami M, et al. - The burden of chronic kidney disease (CKD) among patients with severe mental illness (SMI) was investigated. From the UK Clinical Practice Research Datalink, they identified patients with SMI among all those aged 25–74 registered on March 31, 2014. A comparison was performed of the prevalence of CKD (two measurements of estimated glomerular filtration rate <60 mL/min/1.73 m² for ≥3 months) and renal replacement therapy between patients with and without SMI. Patients with SMI showed a higher prevalence of CKD than the general population, which may, in part, be explained by more frequent blood testing as compared to the general population.