Fig. 1.

Correlation between focus score and lymphocyte subsets in the labial salivary glands (LSGs) from patients with Sjögren's syndrome (SS). ^†The degree of lymphocytic infiltration in the LSGs was graded from 1 to 12 by focus scoring. ^††The ratio of stained lymphocytes was calculated as described in the Patients and methods section. Correlations between focus score and disease duration (a), the CD3/CD19 ratio (b) or the CD4/CD8 ratio (c) in the LSGs from SS patients were observed. Statistical significance of the differences between groups was determined by Spearman's rank correlation.