Erratum to “Post-operative pulmonary complications: Understanding definitions and risk assessment” [Best Pract Res Clin Anaesthesiol 29 (2015) 315–330]

The publisher regrets that the following items in this paper require correction. Page 317, in the Patient-related risk factors section, the fourth sentence on Advanced age should read: The components of frailty are weakness and decreased functional reserve, which are candidates to target for improvement through prehabilitation interventions [23e25]. Page 319e320, Table 3 contained several errors, namely two of the footnotes to the Gupta et al. [13] paper in the ASA rows should have read b (denoting Reference group, ASA 5), and in the column for Patient risk factor, the row for Pre-operative SpO2, should include the indication (%), and the first category should have read 90. So it should have appeared as per the amended Table 3 on the next page. Page 321, Table 4 contained an error in the Duration of surgery (h) section, namely that the middle category should have read >3 and <6. The revised Table 4 is shown hereafter.