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. 2013 Jun 12;69(2):194–197. doi: 10.1136/thoraxjnl-2013-203846

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Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/

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In the York Cancer Registry 2002–2011, three factors know to be used in selection/exclusion of patients for cancer surgery were among the data fields: histological type, performance status (PS) and age. These were used to successively exclude patients who were not comparable with those selected to have surgery. Survival in patients having EPP, N=10 (dashed line) is compared to survival in: a) Patients not having EPP, N=113 (solid line); b) Patients without sarcomatoid histology not having EPP, N=102 (solid line); c) Patients without sarcomatoid histology and with PS 0 or 1 not having EPP, N=73 (solid line). Patients without sarcomatoid histology, with PS 0 or 1 and aged <76.2 years not having EPP, N=49 (solid line).