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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Head Neck. 2009 Feb;31(2):207–212. doi: 10.1002/hed.20949

Table 1.

Mean Survival partitioned into TwiST, Tox, and Rel (Months)

Treatment Arm TwiST Tox Rel
SFX
(n=266)
4.9 6.9 5.0
HFX
(n=261)
5.2 9.0 3.8
AHFXS
(n=274)
5.8 7.1 4.1
AFXC
(n=267)
5.2 7.1 3.8

SFX- Standard Fractionated Radiotherapy; HFX-Hyperfractionated radiotherapy; AHFXS-Accelerated Hyperfractionated Radiotherapy with Split; AFXC-Accelerated Fractionated Radiotherapy with Concomitant Boost; Twist- Time without toxicity or relapse; Tox- Toxicity; Rel-Relapse