Table 1.

Expression of MMP-3 and TRAIL on salivary gland mononuclear cells in 34 patients with Sjögren’s syndrome (SS) with different grades (grade 3 vs grade 4 sialadenitis).

	Grade 3		Grade 4		p^*	S^†/NS^†
	Mean, %	SD	Mean, %	SD	p^*	S^†/NS^†
TRAIL	40.8	3.6	44.9	4.5	0.013	S^†
MMP-3	54.4	7.3	62.7	6.3	0.003	S^†
Primary SS (n = 22)	53.8	6.9	60.8	4.9	0.016	S^†
Secondary SS (n = 12)	56.8	11.1	65.3	7.4	0.182	NS^†

TRAIL: tumor necrosis factor-related apoptosis-inducing ligand; MMP: matrix metalloprotease.
↵* Mann-Whitney U-test.
↵† S/NS: statistically significant (nonsignificant) after Sharpened Bonferroni adjustment for individual type I error probability.