Figure 3
Kaplan–Meier plot showing the influence of radiation on Dunning prostate R3327-AT1 tumour growth.Fraction of AT1 tumours reaching T4: non-irradiated control tumours vs single dose 30 Gy, for rats breathing air or oxygen. Mean T4 Group 3 (O2)=57 days; Group 2 (air)=36.5 days, Group 1 (control)=8.5 days). Two-tailed comparison showed significant differences (P<0.05) between irradiated tumours and control, though not between the irradiated groups. The Group 3 tumours which did not benefit from oxygen breathing behaved like those in Group 2.
