Table 4

Summary of the differential expression of Jak/STAT in the four study groups

Comparison	RA v normal	RA v OA	RA v SpA	SpA v normal	SpA v OA	OA v normal
STAT1 lining	↑ p<0.001	NS	NS	↑ p = 0.001	↑ p = 0.013	NS
STAT1 sublining	↑ p<0.001	↑ p = 0.001	NS	↑ p<0.001	↑ p = 0.004	NS
STAT6 lining	NS	NS	NS	NS	NS	NS
STAT6 sublining	NS	NS	NS	NS	NS	NS
STAT4 lining	↑ p<0.001	NS	↑ p = 0.012	NS	NS	↑ p = 0.002
STAT4 sublining	↑ p = 0.001	↑ p = 0.011	NS	↑ p = 0.011	NS	NS
Jak3 lining	↑ p<0.001	NS	NS	↑ p = 0.011	NS	↑ p = 0.001
Jak3 sublining	↑ p = 0.001	↑ p = 0.008	NS	↑ p = 0.002	NS	↑ p = 0.010