Table 3.
Cumulative lung doses with and without conversion to EQD2 Gy3 (n = 44 at the patient level; n = 108 at the tumor level)
| Variable | N | Mean | SD | Median | Interquartile range |
Range |
||
|---|---|---|---|---|---|---|---|---|
| Q1 | Q3 | Min | Max | |||||
| V5 EQD2 | 44 | 40.93 | 17.26 | 37.45 | 28.10 | 50.75 | 14.20 | 78.00 |
| V10 EQD2 | 44 | 25.49 | 13.26 | 21.70 | 16.70 | 31.20 | 7.40 | 61.70 |
| V20 EQD2 | 44 | 14.73 | 9.06 | 13.15 | 8.25 | 17.50 | 3.80 | 46.10 |
| V30 EQD2 | 44 | 10.23 | 6.48 | 9.70 | 5.75 | 11.95 | 2.60 | 34.40 |
| V40 EQD2 | 44 | 7.69 | 4.48 | 7.60 | 4.65 | 9.00 | 2.00 | 26.50 |
| V5 | 44 | 47.43 | 18.24 | 44.43 | 33.06 | 57.25 | 18.34 | 84.24 |
| V10 | 44 | 27.26 | 14.98 | 24.39 | 17.74 | 30.62 | 7.01 | 70.66 |
| V20 | 44 | 12.32 | 10.25 | 9.96 | 6.29 | 12.49 | 2.53 | 52.39 |
| V30 | 44 | 7.29 | 7.84 | 5.37 | 3.68 | 7.26 | 1.36 | 44.77 |
| V40 | 44 | 4.67 | 5.83 | 3.11 | 2.14 | 4.45 | 0.78 | 32.71 |
| Mean lung dose EQD2 | 44 | 12.42 | 5.12 | 11.45 | 8.49 | 15.44 | 4.55 | 26.52 |
| Mean lung dose | 44 | 9.38 | 4.85 | 8.55 | 6.38 | 10.36 | 4.05 | 28.38 |
Abbreviation: EQD2 = equivalent dose in 2 Gy fractions; Max = maximum; Min = minimum; SD = standard deviation.