Correction to: International Journal of Obesity (2009) 33, 342–353; doi:10.1038/ijo.2008.272; published online 13 January 2009

Since the publication of the above paper, the authors have noticed that an NIH grant was not credited at the end of the article.

The funding acknowledgement should have read: ‘This study was made possible by the Rochester Epidemiology Project (Grant R01-AR30582 from the National Institute of Arthritis and Musculoskeletal and Skin Diseases).’

The authors would like to apologize for the errors.