Table 3 Interfractional uncertainty of position (mm) and p-values of the comparison tests
Tumor location group | CC direction | LR direction | AP direction | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
M | Σ | σ | M | Σ | σ | M | Σ | σ | ||
CC group | Cranial | −1.2 | 4.5 | 5.0 | 0.1 | 3.1 | 3.1 | −1.0 | 3.5 | 4.7 |
Caudal | −1.0 | 2.6 | 6.9 | 0.9 | 2.0 | 4.1 | 0.0 | 3.0 | 4.8 | |
p-value | 0.92 | 0.09 | 0.57 | 0.41 | 0.20 | 0.25 | 0.43 | 0.44 | 0.18 | |
LR group | Left | −1.8 | 4.6 | 5.1 | 0.4 | 3.1 | 4.0 | 0.7 | 3.0 | 5.0 |
Right | −0.5 | 2.0 | 7.0 | 0.7 | 1.9 | 3.4 | −1.6 | 3.0 | 4.5 | |
p-value | 0.36 | 0.02 | 0.91 | 0.78 | 0.27 | 0.68 | 0.05 | 0.89 | 0.95 | |
AP group | Anterior | −2.3 | 3.4 | 7.4 | 1.4 | 2.3 | 3.4 | −1.2 | 4.3 | 4.5 |
Posterior | −0.4 | 3.7 | 5.2 | 0.0 | 2.6 | 3.9 | 0.0 | 2.3 | 4.9 | |
p-value | 0.15 | 0.80 | 0.80 | 0.15 | 0.95 | 0.95 | 0.44 | 0.04 | 0.91 | |
Overall | −1.1 | 3.5 | 6.1 | 0.5 | 2.5 | 3.7 | −0.5 | 3.2 | 4.8 | |