. Author manuscript; available in PMC: 2014 Mar 1.

Published in final edited form as: J Rheumatol. 2013 Jan 15;40(3):236–243. doi: 10.3899/jrheum.120871

Table 1.

Characteristics of subjects (n = 115)^*

	Total (n = 115)	Impaired (n = 41)	Unimpaired (n = 94)	P
Age, years	58.6 ± 10.8 (25–87)	59.5 ± 11.2 (31–82)	58.2 ± 10.6 (25–87)	0.544
Women	73 (63.5)	22 (61.1)	51 (64.6)	0.883
White	93 (80.9)	25 (69.4)	68 (86.1)	0.065
Education, <12 years	18 (15.7)	10 (27.8)	8 (10.1)	0.032^†
Married/with partner	72 (62.6)	20 (55.6)	52 (65.8)	0.350
CVD risk factors	2.1 ± 1.7 (0–6)	2.7 ± 1.5 (0–6)	1.8 ± 1.7 (0–6)	0.003^†
Income, <$20,000	9 (7.8)	6 (16.7)	3 (3.8)	0.045^†
Oral glucocorticoid use	39 (33.9)	15 (41.7)	24 (30.4)	0.330
Duration of RA, years	19.6 ± 11.3 (0–56)	17.6 ± 9.3 (4–37)	20.6 ± 12.1 (0–56)	0.202
Severity of RA	2.4 ± 1.6 (0–6.7)	2.6 ± 1.8 (0–6.1)	2.2 ± 1.5 (0–6.7)	0.291
C-reactive protein level (>3 mg/dl)	41 (35.7)	15 (41.7)	26 (32.9)	0.484
Depression	8 (7.0)	5 (13.9)	3 (3.8)	0.115

Values are the mean ± SD (range) or no. (%).

CVD = cardiovascular disease; RA = rheumatoid arthritis.

^†

Significant at P < 0.05.