In a North American study of female health workers an increased risk of 49% for developing seropositive RA was found in those smoking 25 cigarettes a day for .
smoking is a major preventable risk factor for rheumatoid arthritis (RA)1. smoking contributes at least 25% of the population burden of RA and the risk.
Cigarette smoking and risk of rheumatoid arthritis: a dose-response meta-
Cigarette smoking has been associated with rheumatoid arthritis (RA), but the impor-. KEYWORDS: Rheumatoid arthritis; Risk factors; Epidemiology; Cigarette .