Table 4 Local-regional control and survival
5-year local-regional control | p- value* | 5-year overall survival | p- value* | |
|---|---|---|---|---|
Age in years | ||||
Continuous variable | .136 | <.001 | ||
Sex | .896 | .438 | ||
Male | 87% | 79% | ||
Female | 87% | 77% | ||
Race | .091 | .261 | ||
White | 88% | 81% | ||
Non-white | 76% | 62% | ||
Smoke | .002 | <.001 | ||
Current | 75% | 60% | ||
Former | 88% | 80% | ||
Never | 92% | 88% | ||
Primary site | .006 | <.001 | ||
Tonsil | 91% | 83% | ||
Base of tongue | 86% | 80% | ||
Other | 65% | 43% | ||
T-category | <.001 | <.001 | ||
1-2 | 94% | 90% | ||
3-4 | 75% | 60% | ||
N-category | .446 | .001 | ||
0 | 74% | 65% | ||
1 -2a | 93% | 86% | ||
2b – 2c | 86% | 79% | ||
3 | 80% | 59% | ||
Lowest neck level | .529 | .498 | ||
0 | 74% | 67% | ||
2 | 90% | 83% | ||
3 | 86% | 77% | ||
4 | 76% | 67% | ||
Treatment | .454 | .027 | ||
XRT alone | 92% | 86% | ||
CTXRT | 82% | 72% | ||
Ind. CTX > XRT | 89% | 84% | ||
Ind. CTX > CTXRT | 81% | 71% | ||
Radiation technique | .003 | .084 | ||
IMRT | 92% | 84% | ||
3D conformal | 77% | 66% | ||
Radiation Fractionation | .414 | .150 | ||
Once- daily | 90% | 83% | ||
Altered fractionation | 81% | 70% |