Table 2.

F₂-isoprostane Concentrations in Patients with RA According to Categorical Demographic and Clinical Characteristics

VARIABLE	n	F2- isoprostane	P value*
Gender			0.006
Male	52	2.06 [1.56-3.11]
Female	117	3.23 [1.85-4.54]
Current Smoking			<0.001
Yes	41	3.58 [2.85-5.01]
No	128	2.44 [1.52-3.75]
Hypertension			0.22
Yes	90	1.42 [2.58-4.07]
No	79	1.78 [3.02-4.01]
Diabetes Mellitus			0.72
Yes	19	2.28 [1.68-4.00]
No	150	2.81 [1.61-4.06]
Current Corticosteroids			0.75
Yes	92	2.76 [1.71-4.03]
No	77	2.72 [1.50-4.31]
Current Methotrexate			0.96
Yes	120	2.74 [1.60-4.00]
No	49	2.81 [1.63-4.21]
Current Antimalarials			0.87
Yes	127	2.79[1.54-4.07]
No	42	2.75[1.67-4.05]
Current anti-TNF			0.25
Yes	35	3.19 [2.12-3.98]
No	134	2.72 [1.55-4.06]
Current Statin
Yes	21	2.24 [1.56-3.38]	0.14
No	148	2.88 [1.62-4.20]

^*Wilcoxon rank-sum test.