Autoantibodies in Connective Tissue Disease

Positive ANA in a healthy population Conditions other than CTDs with positive ANA. Titer Prevalence. Elderly persons. 1:40 32% Pregnancy. 1:80 13% Relatives of patients with CTD. 1:160 5% Other autoimmune disease (autoimmune thyroiditis, pimary biliary cirrhosis) 1:320 3% Chronic infections. Neoplasms ................
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