Asthma, Allergic Disease, Passive Smoke Exposure & the Risk of RA

Passive smoke exposure at home or work was not associated with RA.

Finally, age at start of smoking was not associated with increased odds of developing RA in either the full cohort (OR 1.03 [95% CI 1.00–1.06; P=0.03]) or the incident RA cohort (OR 1.00 [95% CI 0.92–1.08; P=0.98]).

Conclusion

Asthma and allergies may be associated with increased risk of RA, but passive smoke exposure and early age at start of smoking do not appear to influence the risk of RA.

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Excerpted and adapted from:

Kronzer VL, Crowson CS, Sparks JA, Vassallo R, Davis JM III. Investigating asthma, allergic disease, passive smoke exposure, and risk of rheumatoid arthritis. Arthritis Rheumatol. 2019 Aug;71(8):1217–1224.