Table 1.
Autoantibodies | Prevalence, % | Properties | Clinical association |
---|---|---|---|
Anti-Ro/SSA | 50–70 | Disease marker in healthy | Younger age, extraglandular |
Lymphoma predictive model | |||
Anti-La/SSB | 25–40 | Disease marker in healthy | Extraglandular |
Lymphoma predictive model | |||
Rheumatoid factor | 36–74 | Phenotype marker | Anti-Ro/La, extraglandular |
Lymphoma predictive model | |||
Anti-CCP | 3–10 | Phenotype marker | Arthritis |
AMA | 3–10 | Phenotype marker | Elevated liver enzymes, PBC |
ACA | 3–27 | Phenotype marker | Raynaud’s phenomenon |
Cryoglobulins | 3–12 | Phenotype marker | lymphoma, extraglandular |
Lymphoma predictive model |
Anti-Ro/SSA and anti-La/SSB are associated with systemic disease with anti-Ro part of the most recent classification criteria. Other autoantibodies are important for neither diagnosis nor research classification but identify Sjögren’s syndrome patients with certain clinical features.CCP, citrullinated cyclic peptide; AMA, anti-mitochondrial antibody; ACA, anti-centromere antibody; PBC, primary biliary cholangitis.