Patients with pSS were retrospectively reviewed, and pSS-ILD and pSS non-ILD were identified. Clinical data, laboratory parameters, pulmonary high-resolution CT (HRCT), and pulmonary function tests (PFTs) were collected. pSS-ILD patients were further categorized into subgroups according to HRCT patterns or PFTs.
Patients with pSS seen in the Division of Rheumatology, the second affiliated hospital of Zhejiang University, School of Medicine (SAHZU) during January 2016 to July 2018, were retrospectively reviewed. Characteristics were analyzed.