. Author manuscript; available in PMC: 2016 Mar 15.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2015 Mar 15;91(4):721–729. doi: 10.1016/j.ijrobp.2014.12.023

Table 4.

Correlation of Baseline Primary MTV with Treatment Outcomes

Variable	Endpoint	Events/total	Hazard ratio (95% CI)	p-value
Primary MTV (continuous)	Local relapse	8/68	1.05 (1.00, 1.09)	0.06
	Local-regional relapse	16/68	1.05 (1.02, 1.08)	<.01
	Distant metastasis	8/68	1.04 (1.01, 1.08)	0.02
	Progression-free survival	24/68	1.05 (1.02, 1.07)	<.01
	Overall survival	15/68	1.03 (1.00, 1.06)	0.08
Primary MTV (> vs. ≤ median)	Local relapse	5/33 vs. 3/35	1.96 (0.47, 8.23)	0.36
	Local-regional relapse	12/33 vs. 4/35	4.01 (1.28, 12.52)	0.02
	Distant metastasis	6/33 vs. 2/35	3.62 (0.73, 18.04)	0.12
	Progression-free survival	15/33 vs. 9/35	2.34 (1.02, 5.37)	0.05
	Overall survival	8/33 vs. 7/35	1.40 (0.51, 3.86)	0.52

CI = confidence interval.

Hazard ratios estimated from Cox models.