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Øie MR, Helvik AS, Sue-Chu M, Steinsvåg SK, Thorstensen WM. Int J Chron Obstruct Pulmon Dis. 2022;17:2137–2147. Page 2137, Abstract, Patients and Methods section, line 2, the text “in 93 COPD patients” should read “in 90 COPD patients”. The authors have also advised Figure 1 on page 2138 is incorrect. Without RSsNP should be n=44 and With RSsNP should be n=46. The correct Figure 1 is as follows. Figure 1 Flow chart of the study participants and the subjects excluded. Abbreviations: EPOS, European Position Paper on Rhinosinusitis and Nasal Polyps (2012); RSsNP, Rhinosinusitis sin Nasal Polyps.