. Author manuscript; available in PMC: 2015 Mar 25.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2011 Dec 28;83(3):972–979. doi: 10.1016/j.ijrobp.2011.08.011

Table 4.

Correlation of FRV with disease-specific survival

	FRV₁	FRV₂	FRV₃
Below FRV cutpoint vs. Above FRV cutpoint	94.6% vs. 53.1%	87.9% vs. 40.9%	88.0% vs. 39.5%
p (Kaplan-Maier)	1.9 × 10⁻⁴	2.1 × 10⁻⁶	2.5 × 10⁻⁷
p (Mann-Whitney)	1.8 × 10⁻⁴	7.3 × 10⁻⁷	4.6 × 10⁻⁶

Abbreviation: FRV = functional risk volume.

FRV cutpoints and timing as in Table 2.