Key clinical point: Smoking cessation significantly reduces the risk and delays the onset of rheumatoid arthritis.
Major finding: Women who quit smoking more than 30 years ago have a 37% lower risk of seropositive rheumatoid arthritis than do those who quit recently.
Study details: Analysis of data from 230,732 women in the Nurses’ Health Study and NHS II.
Disclosures: The National Institutes of Health supported the study. No conflicts of interest were declared.
Liu X et al. Arthritis Care Res. 2019 Feb 21. doi: 10.1002/acr.23837.