Incidence and Prevalence of Rheumatoid Arthritis

Rheumatoid arthritis (RA) is an autoimmune disease associated with chronic inflammation of the joints. In 2008, the New York Times published a review on the incidence of rheumatoid arthritis among women. The report emphasized that after four decades of decline of arthritis in the US, the disease is currently on the rise, thus becoming an imminent health concern. From 1955-1994, the prevalence of arthritis among women was declining, 36 per 100,000 population compared to the current prevalence of 54 persons per 100,000 population (Parker-Pope, 2008). However, the disease prevalence in men remains about 29/100,000 (Parker-Pope, 2008). Among the US population, RA condition increased from 0.85% to 0.95%, (Parker-Pope, 2008), an increase of 11.8% in new cases. The risk factors for the RA condition is multifactorial, but some of the known risk factors are smoking, caffeine, diet, infection, sex hormone, reproductive factors, and BMI (≥30kg/m²) or obesity (Parker-Pope, 2008). Crowson et

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