E3N cohort 78000+ women >30yrs follow up 698 incident RA cases) In non smokers, RA asso w/ -tall at birth HR=1.55 In smokers, RA risk associated w/ -prematurity HR=1.63 -in utero exposure to tobacco HR=1.83 (ns) #EULAR2025 @RheumNow POS0226 https://t.co/xC3k3kiKsZ