TNFSF13B and lymphoma: Baseline serum BAFF and beta2- microglobulin were significantly higher in these 16 patients with history of lymphoma than in the others (1173.3 (873.1–3665.5) vs 898.9 pg/ml (715.9–1187.2), P = 0.01 and 2.6 (2.2–2.9) vs 2.1 (1.8–2.6) mg/, P = 0.04, respectively).