Table 1.

Demographic pattern and laboratory results of RA patients and controls

Parameters	RA patients	Controls	t-test	P value
Number (F/M)	120 (90/30)	90 (60/30)	-	NS
Age (years)	41.33 ± 15.93	40.5 ± 17.5	0.36	NS
Duration of illness (years)	9.65 ± 4.28	0.0	-	-
ESR (1st hr) mm/hr	41.62 ± 8.02	8.65 ± 2.89	17.21	0.001*
RF Mean ± SE (IU/mL)	(149.34 ± 64.30)	13.5 ± 21	18.99	0.001*
Anti-CCP-2 Ab Mean ± SE IU/mL	62.54 ± 21.22	4.41 ± 1.20	19.85	0.001*
PON-1 activity (nmol/min/ml)	64.44 ± 11.33	152.18 ± 17.74	16.25	0.001*
ARE activity (Um/l)	197.65 ± 83.84	363.65 ± 169.15	10.52	0.001*

Data are presented as mean ± SD. NS means not significant.

P value was calculated by t-test P* value was significant at <0.001.