. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: Head Neck. 2012 Jul 13;35(7):942–948. doi: 10.1002/hed.23046

TABLE 5.

Hazard ratio (with a unit increase in the form of log10 transformation) and 95% confidence interval by pretreatment cytokine (n = 23).

Efficacy	Cytokine	HR (95% CI)	p value^*
OS
	GRO-1	0.75 (0.35, 1.62)	.47
	HGF	4.07 (1.21, 13.67)	.02
	VEGF	1.35 (0.58, 3.14)	.48
	IL-6	1.13 (0.62, 2.07)	.69
	IL-8	2.08 (0.47, 9.31)	.34
PFS
	GRO-1	1.07 (0.39, 2.96)	.90
	HGF	1.50 (0.38, 5.91)	.56
	VEGF	1.16 (0.47, 2.86)	.75
	IL-6	1.23 (0.55, 2.74)	.62
	IL-8	2.31 (0.33, 16.2)	.40

Via the univariate Cox proportional hazards model.