Table 1 Relative biological effectiveness (RBE) calculated in different situations.
Proton dose (RBE) vs. photon dose | Biological effects of proton vs. biological effects of photon | p value | RBE = photon dose/proton dose (actual) |
|---|---|---|---|
20 Gy vs. 20 Gy or 30 Gy vs. 30 Gy | > | ≤ 0.05 | > 1.1 |
> | > 0.05 | = 1.1 | |
< | ≤ 0.05 | < 1.1 | |
< | > 0.05 | = 1.1 | |
20 Gy vs. 30 Gy | > | ≤ 0.05 | > 1.65 |
> | > 0.05 | = 1.65 | |
< | ≤ 0.05 | < 1.65 | |
< | > 0.05 | = 1.65 |
