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. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: J Arthritis. 2015 Dec 5;4(4):178. doi: 10.4172/2167-7921.1000178

Table 1.

Baseline^* characteristics of eligible RA and non-RA patients.

	RA N=51,130	Non-RA N=154,292	P value

Age, mean (SD) years	51.8 (12.4)	51.4 (12.8)	<0.001

Sex
Male	12,395 (24.2)	37,526 (24.3)	0.717
Female	38,735 (75.8)	116,766 (75.7)	0.717

Region
Midwest	14,154 (27.7)	42,678 (27.7)	1.0
Northeast	4,568 (8.9)	13,779 (8.9)
South	23,986 (46.9)	72,423 (46.9)
West	8,422 (16.5)	25,412 (16.5)

Hyperlipidemia	19,360 (37.9)	59,709 (38.7)	0.001

Diabetes	674 (1.3)	1,124 (0.7)	<0.001

Hypertension	2,399 (4.7)	3,768 (2.4)	<0.001

Data are n (%) unless indicated otherwise.

^*

measured in the 6 months prior to the start of follow-up