The Effect of Gefitinib on Treatment Necessity and Prognosis of NSCLC Patients with Early EGFR Mutations

Table 7

Overall comparison.

-	Cardinality	Degrees of freedom	Significance
Log rank (Mantel-Cox)	6.095	2	0.047

Equivalence tests for the distribution of survival analysis were performed for different levels of EFGR mutation types. ^aEGFR mutation = positive.