Predictive value of bone marrow megakaryocyte count for immunotherapeutic response in primary Sjögren's syndrome patients with severe immune thrombocytopenia: A single-center case-control study in China.

MK count predicted response to immunosuppressive treatment in pSS patients with severe ITP. These patients are recommended to have bone marrow aspiration before treatment initiation. Clinicians should be aware of screening for infections during clinical practice.