Table-III.

Association between ERCC1 and RRM1 expression and survival of NSCLC

Expression level	Overall survival
	Median survival (95% CI, months)	Log-rank P	HR (95% CI)
Low ERCC1	11.7(2.6-15.3)	-	-
High ERCC1	17.4(4.3-22.6)	0.03	0.63(0.35-0.88)
Low RRM1	13.5(3.2-16.4)	-	-
High RRM1	15.4(3.6-18.4)	0.08	0.77(0.42-1.54)
Low ERCC1/Low RRM1	10.6(3.0-15.7)	-	-
High ERCC1/ Low RRM1	16.2(3.2-18.9)	0.06	0.67(0.36-1.03)
Low ERCC1/ High RRM1	12.5(3.1-15.8)	0.54	0.85(0.61-1.56)
High ERCC1/ High RRM1	18.7(4.5-23.1)	0.004	0.31(0.13-0.62)