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We thank Bischoff, Crockett, and Schermer for their interest in our article, their insightful comments, and the opportunity to respond to them. They have correctly pointed out that the sex-stratified prevalence trends in Figure 1 of our article1 have been mislabeled. The male and female labels in the legend have been switched. The data from Ontario, Canada, which is depicted correctly in Table 1 of our article and in the text, agrees with the prevalence trends they described in the Netherlands—specifically, a consistently higher prevalence of COPD in men but also a trend showing that the prevalence in women is catching up with men.2 We thank them for pointing out this error. We have informed the Archives, and a correction was published in the June 28, 2010, issue.
Gershon AS, Wang C, Wilton AS, Raut R, To T. Trends in Population Burden of COPD: Actual Facts or Fallacies?—Reply. Arch Intern Med. 2010;170(15):1408-1410. doi:10.1001/archinternmed.2010.260