APRIL 15, 2022 Passive smoking during childhood and/or adulthood is associated with increased risk of rheumatoid arthritis (RA), according to a study recently published in RMD Open. Yann Nguyen, M.D., M.P.H., from the Université Paris-Saclay in Villejuif, France, and colleagues examined the association between exposure to passive smoking and the risk of incident RA in a...