Table 1

Characteristics of study population
Total Prior-users Never-users P value
N = 86 (100%) n = 19 (19%) n = 67 (81%)
Demographics
 Age (Mean, SD) 80 (±10.3) 79 (±5.2) 80 (±11.3) 0.77
 Female 77 (89.5%) 15 (78.9%) 62 (92.5%) (Mean, SD) 0.09
Race 0.64
 White, non-Hispanic 83 (96.5%) 16 (94.7%) 64 (95.5%)
 Black, non-Hispanic 3 (3.5%) 1 (5.3%) 2 (3.0%)
Education 0.77
 Less than 8th grade 10 (11.6%) 3 (15.8%) 7 (10.4%)
 Some high school 15 (17.4%) 4 (21.1%) 11 (16.4%)
 High school graduate 44 (51.2%) 8 (42.1%) 36 (53.7%)
 Some college or greater 15 (17.4%) 4 (21.1%) 11 (16.4%)
 Unknown 2 (2.3%) 0 (0.0%) 2 (3.0%)
Income 0.59
 Below $25,000 82 (95.3%) 19 (100%) 63 (94.0%)
 Above $25,000 1 (1.2%) 0 (0.0%) 1 (1.5%)
 Unknown 3 (3.5%) 0 (0.0%) 3 (4.5%)
RA characteristics
 Morning stiffness 63 (73.3%) 17 (89.5%) 46 (68.7%) 0.07
 Nodules around elbow/ankle 13 (15.1%) 3 (15.8%) 10 (14.9%) 0.93
Self-reported swollen joints 0.06
 Zero 28 (32.6%) 4 (21.1%) 24 (34.8%)
 One 5 (5.8%) 1 (5.3%) 4 (6.0%)
 Two 21 (24.4%) 3 (15.8%) 18 (26.9%)
 Three 10 (11.6%) 3 (15.8%) 7 (10.4%)
 Four or more 22 (25.6%) 8 (42.1%) 15 (20.9%)
Self-reported serologic status 50 (58.1%) 16 (84.2%) 34 (50.7%) 0.06
 Positive 21 (24.4%) 10 (52.6%) 11 (16.4%)
 Negative 2 (2.3%) 1 (5.3%) 1 (1.5%)
 Do not know 25 (29.1%) 4 (21.1%) 21 (31.3%)
Years with RA (mean, SD) 20 ± 15.9 25 ± 17.6 18 ±15.2 0.13
MHAQ (mean, SD) 0.5 ± 0.5 0.8 ± 0.6 0.5 ± 0.5 0.02
 0 18 (20.9%) 1 (5.3%) 19 (28.4%) 0.01
 >0-1 53 (61.6%) 12 (63.2%) 41 (61.2%)
 >1-2 11 (12.8%) 5 (26.3%) 6 (9.0%)
 >2-3 2 (2.3%) 1 (5.3%) 1 (1.5%)
Prior visit with rheum >1 year ago 39 (45.3%) 15 (78.9%) 27 (35.8%) 0.01

MHAQ, Modified Health Assessment Questionnaire; RA, rheumatoid arthritis; SD, standard deviation.

Brown et al.

Brown et al. Arthritis Research & Therapy 2014 16:R30   doi:10.1186/ar4459

Open Data