Erratum

In the article by Mündermann et al published in the April 2004 issue of Arthritis & Rheumatism (pp 1172–1178), there was an error in the labeling of the lines in Figure 5. The dashed line should have been labeled “more severe knee OA” and the dotted line “less severe knee OA.” In the text, Figure 5 is described and referred to correctly.

We regret the error.