Occupational inhaled agents increased risk of CCP+ RA, per Swedish occ data (OR 1.25, [1.12-1.38]). Dose-dependent increase in risk. Agents include quartz, asbestos, fungicides & carbon monoxide. This is a common pt question! @RheumNow ABST0601 #ACR22 https://t.co/QbsSLIXNar