Psoriasis patients

Eligible psoriasis patients will be identified from the daily outpatient program, at the Department of Dermato-Allergology, that is the department will provide the patient's contact information to the project group. As most outpatient clinic psoriasis is classified as moderate to severe, in order to approximate a random sample as accurate as possible including patients with mild psoriasis, all people with a diagnosis of psoriasis will a general invitation to participate in the study through appropriate channels such as the Danish Psoriasis Foundation's newsletter.

Control group

The control group will consist of a retrospective random sample of around 1.000 patients from the general population examined in the 4th and 5th Copenhagen City Heart Study, 2001-2003 and 2011-2014 (ClinicalTrials.gov identifier NCT02993172, I-Suite no. 03741, National Committee on Health Research Ethics approval HEH-2015-045). Existing data from the Copenhagen City Heart Study will be transferred to the current study and will include personal identification number from the Central Office of Civil Registration, echocardiographic assessments, electrocardiograms as well as health related data (health conditions including symptoms, risk factors for cardiovascular disease, medication, prior clinical and/or paraclinical assessments including blood test results and procedures relevant to psoriasis and potential heart disease).