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Table 2 Comparison of rheumatoid arthritis patients with regard to waist circumference (IDF)

From: High prevalence of obesity in rheumatoid arthritis patients: association with disease activity, hypertension, dyslipidemia and diabetes, a multi-center study

Variable Normal WC n = 474 (100.0%) Increased WC n = 288 (100.0%) Total n = 762 (100%) p-value
Female sex (n; %) 408 (86.1) 225 (78.1) 663 (87.0) 0.326
Non-white race/color (n; %) 189 (39.8) 113 (39.2) 302 (39.6) 0.902
Age (mean ± SD) 52.6 ± 12.6 58.0 ± 10.0 54.6 ± 12.0 < 0.001
Disease duration (mean ± SD) 12.9 ± 9.3 12.7 ± 8.1 12.8 ± 8.9 0.798
Diabetes mellitus (n; %) 27 (5.6) 90 (31.2) 117 (15.3) < 0.001
Systemic arterial hypertension (n; %) 150 (31.6) 231 (80.2) 381 (50.0) < 0.001
Dyslipidemia (n; %) 112 (23.6) 144 (50.0) 256 (33.5) < 0.001
Family history of CVD (n; %) 75 (15.8) 53 (18.4) 128 (16.7) 0.360
Smoking (n; %) 62 (13) 31 (10.7) 93 (12.2) 0.293
Use of methotrexate (n; %) 320 (67.5) 192 (66.6) 512 (67.1) 0.989
Use of prednisone (n; %) 304 (64.1) 169 (58.6) 473 (62.0) 0.090
Use of leflunomide (n; %) 154 (32.4) 110 (38.1) 264 (34.6) 0.109
C-reactive protein (mean ± SD) 16.6 ± 44.0 26.7 ± 123.2 20.3 ± 82.6 0.136
Rheumatoid factor (n; %) 320 (67.5) 197 (68.4) 517 (67.8) 0.456
DAS28 (mean ± SD) 3.99 ± 1.56 4.23 ± 1.48 4.08 ± 1.53 0.047
  1. SD standard deviation, WC waist circumference, CVD cardiovascular disease, DAS28 disease activity score in 28 joints, IDF International Diabetes Federation