Objectives: To estimate percentage of low bone mineral density (BMD) in rheumatoid arthritis patients; survey the relationship between bone mineral density and factors such as age, sex, body mass index (BMI), menopause, disease duration, disease activity level, low factor (RF), Anti Cyclic Citrullinated Peptide (anti-CCP), C-reactive Protein (CRP), 1st - hour erythrocyte sedimentation rate (ESR), cortisol.