Chronic obstructive pulmonary disease is common in never-smoking patients with primary Sjögren syndrome.

OBJECTIVE To assess the prevalence of chronic obstructive pulmonary disease (COPD) in patients with primary Sjögren syndrome (pSS) and to study the association of COPD with cigarette smoking, radiographic features, respiratory symptoms, disease activity, and laboratory inflammatory and serological features in patients with pSS. METHODS Fifty-one… (More)