Table 4.

Synovial fluid MDA and MPO levels of the subjects whom ESR was below 28 mm/h in anti-CCP(+) and anti-CCP(-) groups.

	Anti-CCP antibody	N	Mean	Std. Deviation	p value
Synovial MDA (nmol/ml)	negative	12	2.912	0.712	0.048*
	positive	10	4.314	0.780
Synovial MPO (U/ml)	negative	12	3.303	1.865	0.032*
	positive	10	4.895	2.476

*p<0.05