Illness perceptions and psychological distress associated with physical health-related quality of life in primary Sjögren’s syndrome compared to systemic lupus erythematosus and rheumatoid arthritis

Notwithstanding that psychological distress and illness perceptions are important in determining outcomes in rheumatic diseases, few studies investigated these variables in primary Sjogren’s syndrome (pSS). We aimed to compare illness perceptions and psychological distress in patients with pSS, systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) and to test whether their associations with health-related quality of life (HRQoL) are...