The article by Phipatanakul and colleagues, published in the June 1, 2017, issue of the Journal (1), contained errors in the published spirometry results. The authors have informed us that derived spirometry parameters (percent of predicted) were incorrectly calculated. Derived parameters were calculated using the 2012 Global Lung Initiative (GLI) equations. However, because of a computer programming error, the GLI equations for Other/Mixed ethnicity were inadvertently applied to all white subjects instead of using the correct equations for white individuals. These errors produced small changes in the data dependent on the GLI equations but do not change the article’s conclusions in any material way.
Because these errors appear throughout the article and online data supplement (including the abstract, Tables 1 and 2, Figures 1–3, and the Results section), the Journal is taking the step of replacing the online version of the article with a corrected version. For the convenience of our readers, we are also posting a copy of the original article with all corrections indicated in red (this may be found in the supplemental materials tab of the online article).
The authors apologize to the readership of the Journal.
Reference
- 1.Phipatanakul W, Mauger DT, Sorkness RL, Gaffin JM, Holguin F, Woodruff PG. Severe Asthma Research Program. Effects of age and disease severity on systemic corticosteroid responses in asthma. Am J Respir Crit Care Med. 2017;195:1439–1448. doi: 10.1164/rccm.201607-1453OC. Ly NP, Bacharier LB, Bhakta NR, Moore WC, Bleecker ER, Hastie AT, Meyers DA, Castro M, Fahy JV, Fitzpatrick AM, Gaston BM, Jarjour NN, Levy BD, Peters SP, Teague WG, Fajt M, Wenzel SE, Erzurum SC, Israel E. [DOI] [PMC free article] [PubMed] [Google Scholar]