Wedge resection plus adequate lymph nodes resection is comparable to lobectomy for small-sized non-small cell lung cancer.

The cutoff number of resected lymph nodes which conferred wedge resection non-inferior survival than lobectomy was determined as following: cases with more than a certain number of lymph nodes resected (starting from 0) were selected and after performing propensity score matching, survival was assessed between wedge resection group and lobectomy group until the difference did not reach statistical significance.

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