Fig. 6

The comparison of Fas and FasL- positive lymphocytes and serum levels between controls and patients with Sjögren’s syndrome. a Percentage of Fas⁺ IL-2Rα⁺ B cells, patients using NSAIDs are marked by red squares, Kolmogorov–Smirnov Test. b Percentage of FasL⁺ IL-2Rα⁺ B cells, t-test. c Percentage of Fas⁺ IL-2Rα⁺ CD4⁺ T cells, t-test. d Percentage of FasL⁺ IL-2Rα⁺ CD4⁺ T cells, Kolmogorov–Smirnov Test. e Serum level of Fas, t-test. f Serum level of FasL t-test