This article corrects:

  1. A retrospective cohort study of the impact of biologic therapy initiation on medical resource use and costs in patients with moderate to severe psoriasis Volume 163, Issue 4, 807–816, Article first published online: 19 July 2010

In the article by Fonia et al.[1] figure 2 was published incorrectly. The ‘After’ value for ‘Day ward admissions’ was incorrectly published as 0.16. The correct value is 1.16.

The correct figure is reproduced below.


We apologise for this error.