In the article, “Stumped by the Hump: The Curious Rise and Fall of Norwegian Birthweights, 1991–2007,” that appeared on pages 587–594 of the July issue of epidemiology,1 an author’s affiliation was listed incorrectly. Dr Carlsen’s second affiliation is at the Department of Community Medicine, Institute of Health and Society, University of Oslo, Oslo, Norway.
1. Carlsen EØ, Magnus MC, Omsland TK, Magnus PM, Håberg SE, Wilcox AJ. Stumped by the hump: the curious rise and fall of Norwegian birthweights, 1991–2007. epidemiology