Table 1.
Baseline characteristics of Korean patients with rheumatoid arthritis (n = 545)
Values are expressed as Median (Interquartile range) or number of participants (percent) in the category listed. *Osteoporosis was defined as T-score ≤ -2.5 for postmenopausal women or men ≥ 50 yr old, and Z-scores ≤ -2.0 for premenopausal women or men < 50 yr old were regarded as osteoporosis; †Not included hormone replacement therapy after menopause. RF, rheumatoid factor; ACPA, anti-citrullinated peptide antibody; DMARDs, disease modifying anti-rheumatic drugs; BMD, bone mineral density; WHO, World Health Organization; SERM, selective estrogen receptor modulator.