Key clinical point: Oral corticosteroid use in pregnancy for rheumatoid arthritis is linked to higher risk of preterm birth.
Major finding: Pregnant women on higher doses of oral corticosteroids for rheumatoid arthritis have more than fourfold higher risk of preterm birth.
Study details: A study of 528 pregnant women with rheumatoid arthritis.
Disclosures: The study was supported by the National Institutes of Health, and the MotherToBaby Pregnancy Studies are supported by research grants from several pharmaceutical companies. No other conflicts of interest were declared.