Comparison 1. Surgical resection alone versus radiotherapy alone for clinical stage I to III lung cancer.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 2‐year survival	1		Risk Ratio (M‐H, Random, 95% CI)	Totals not selected
2 4‐year survival	1		Risk Ratio (M‐H, Random, 95% CI)	Totals not selected
3 30‐day mortality	1		Risk Ratio (M‐H, Random, 95% CI)	Totals not selected
4 Subgroup analysis: 4‐year survival in patients with squamous cell carcinoma	1		Risk Ratio (M‐H, Random, 95% CI)	Totals not selected