The objective of the current study was to determine the effect of smoking on the development of second primary lung cancers (SPLCs) and other clinical outcomes after surgery for non–small cell lung cancer (NSCLC). SPLCs are rare in never–smokers.
Increasing tobacco exposure is associated with a higher risk of SPLC in patients with a history of smoking. Current smokers have an increased risk of mortality whereas former and never–smokers have comparable survival.
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