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Table 3 Multivariate analysis with variables selected by stepwise method

From: Prognostic factors for local control of stage I non-small cell lung cancer in stereotactic radiotherapy: a retrospective analysis

Variable [Reference] Hazard ratio χ2 95% confidence interval of hazard ratio Significance probability (p)
T factor [Group: T2] 0.027 6.142 0.002 – 0.470 0.013
Minimum dose for PTV (%) [Unit: 1%] 0.731 6.203 0.571 – 0.935 0.013
BED 10 (Gy) [Unit: 10 Gy] 0.383 3.898 0.148 – 0.993 0.048