Pretreatment SUVmax predicts progression-free survival in early-stage non-small cell lung cancer treated with stereotactic body radiation therapy

Table 4 Univariate and multivariate Cox proportional hazards regression analysis with SUV _max as a dichotomous and continuous variable

Univariate Cox proportional hazards regression analysis
	PET SUV_max(<5 vs ≥5)		PET SUV_max(Continuous)
	HR (95% CI)	p	HR (95% CI)	p
Local control	--	NS	1.124 (1.002 – 1.260)	.045
Distant control	--	NS	--	.059
Progression-free survival	0.359 (0.143 – 0.905)	.030	1.098 (1.033 – 1.168)	.003
Overall survival	0.478 (0.249 – 0.920)	.027	1.061 (1.005 – 1.119)	.032
Multivariate Cox proportional hazards regression analysis
Local control	--	NS	--	.057
Distant control	--	NS	--	.092
Progression-free survival	--	.105	1.111 (1.027 – 1.201)	.008

Univariate Cox hazards regression analysis of SUV_max as a dichotomous variable shows significance for progression-free and overall survivals. As a continuous variable, SUV_max significantly predicts for local control, progression-free and overall survivals. In multivariate Cox analysis, SUV_max remains a significant predictor of progression-free survival.

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