In the article by Humphreys et al in the September 2014 issue of Arthritis Care & Research (pages 1296–1301) an error was detected in the Results. On page 1298, the sentence beginning “Overall, persistently increasing, but stable mortality rates … ” should have read “Overall, persistently increased, but stable mortality rates over time were seen in patients with RA, when modeled by calendar year.”
We regret the error.