Prevalence, incidence, and risk of chronic obstructive pulmonary disease among psoriasis patients

Understanding the relationship between psoriasis and chronic obstructive pulmonary disease (COPD) may enhance disease management. We aimed to determine the (1) prevalence and (2) incidence and risk of COPD in psoriasis patients. The COPD prevalence was 9.64 % in psoriasis patients and 6.94 % in psoriasis-free patients. The COPD incidence was 10.74 per 1000 person-years in psoriasis patients and 6.36 per 1000 person-years in psoriasis-free patients. Multivariable Cox regression showed no association between psoriasis and COPD development (HR 0.99, p = 0.271). Our findings suggest that psoriasis is not an independent risk factor for COPD development. •Psoriasis and chronic obstructive pulmonary disease (COPD) are defined by chronic inflammation.•Recent research suggests a potential link between pulmonary disease and psoriasis.•Psoriasis patients have increased prevalence and incidence of COPD.•Psoriasis was not found to be an independent risk factor for COPD.•Smoking may drive the increased prevalence/incidence of COPD in psoriasis patients.