Rheumatoid arthritis (RA) is a chronic autoimmune disorder that commonly manifests as destructive joint inflammation but also affects multiple other organ systems. The pathogenesis of RA is complex wh
G1 analyses are adjusted for age at clinic completion, ethnicity, child’s mother and father education, maternal smoking during pregnancy, birth weight, gestational age, maternal age, household social
1Cut-off levels are according to WHO definition. 2RRs were estimated from Cox regression models with attained age as time scale, adjusted for smoking status and age at baseline, stratified by cohort,