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Table 1 Characteristics of patients with rheumatoid arthritis - combined or by group - at baseline

From: Assessment of 3-month changes in bone microstructure under anti-TNFα therapy in patients with rheumatoid arthritis using high-resolution peripheral quantitative computed tomography (HR-pQCT)

  All patients (n = 27) MTX-only group (n = 10) MTX + anti-TNFa group (n = 17)
Age (years), mean ± SD 51.9 ± 15.4 58.6 ± 15.8 47.7 ± 13.8
Sex (female:male) 22:5 7:3 15:2
Ethnicity
 Hispanic or Latino 25 10 15
 Native Hawaiian or other Pacific Islanders 1 0 1
 African American 1 0 I
Disease duration (years), mean ± SD 6.5 ± 5.4 7.1 ± 5.2 5.7 ± 5.6
Body mass index (kg/m2), mean ± SD 28.3 ± 7.1 24.5 ± 5.5 30.1 ± 7.6
Seropositivity of rheumatoid factor 14 3 11
 Anti-CCP antibody 19 7 12
Cumulative prednisone dose (mg) 4.5 ± 3.8 1.4 ± 2.2 4.9 ± 3.6
  1. MTX methotrexate, TNFa Tumor necrosis factor alpha, DAS-28 disease activity score in 28 joints, CCP citrullinatcd protein