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Question of the month
Question of the Month

What is the main clinical difference between patients with seronegative and seropositive Sjögren syndrome?
Email your answer on or before 15 July, 2015 to: iraenewsletter@hotmail.com
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Best reply for the 'Question of the month-June'

What is the frequency of Anti-Ro (SSA) and anti-La (SSB) autoantibody positivity in Sjögren syndrome?

Answer:

The frequency of anti-Ro/SSA and/or anti-La/SSB antibodies is nearly 70–80% and nearly 30–40%, respectively in Sjögren syndrome.

References
1. García-Carrasco M, Ramos-Casals M, Rosas J, et al. Primary Sjögren syndrome: clinical and immunologic disease patterns in a cohort of 400 patients. Medicine. 2002;81:270–280..