Table 3.
Dosimetric comparison between the areas of G1 alopecia and the areas of G2 alopecia at the end of radiotherapy: mean values and standard deviations (in brackets) of dosimetric variables.
| n | Mean D0.1cc (Gy) | Mean Dmean (Gy) | Mean V16Gy (cc) | Mean V20Gy (cc) | Mean V25Gy (cc) | Mean V30Gy (cc) | Mean V35Gy (cc) | Mean V40Gy (cc) | Mean V43Gy (cc) | |
|---|---|---|---|---|---|---|---|---|---|---|
| G1-Alopeciaend of RT | 44 | 33.4 (± 14.3) | 16.5 (± 8.3) | 11.9 (± 14.6) | 7.6 (± 9.6) | 6.5 (± 11.8) | 3.8 (± 7.9) | 2.4 (± 6.4) | 1.6 (± 5.4) | 1.3 (± 4.8) |
| G2-Alopeciaend of RT | 85 | 44.6 (± 11.2) | 20.3 (± 6.4) | 40.2 (± 35.4) | 31.5 (± 30.5) | 21.8 (± 24.3) | 14.8 (± 18.9) | 9.2 (± 14.3) | 5.4 (± 10.2) | 3.6 (± 7.7) |
| p-value from Mann-Whitney Test | 0.0001 | 0.002 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.001 | 0.0001 | 0.001 | |
D0.1cc, dose received by 0.1 cc; Dmean, mean dose; VxGy, percentage of the scalp volume receiving ≥ x Gy.
Bold text indicates statistical significance.