Table 2.
Variable | Median(range) | No RP(n = 83) | RP(n = 11) | pvalue* |
---|---|---|---|---|
MLD | 11.59(6.53-18.11) Gy | = 11.26, SD = 2.81 | = 14.91, SD = 2.91 | 0.001 |
NTCP | 2.33% (0.51-9.68%) | = 2.51, SD = 1.73 | = 5.94, SD = 2.40 | 0.001 |
V5 | 58.73% (32.89-97.65%) | = 58.43, SD = 16.57 | = 69.23, SD = 12.47 | 0.006 |
V10 | 42.16%(25.28-83.34%) | = 41.13, SD = 12.69 | = 52.42, SD = 11.05 | 0.001 |
V15 | 29.53%(16.46-58.51%) | = 28.94, SD = 9.12 | = 38.30, SD = 7.65 | 0.005 |
V20 | 18.15% (9.46-31.08%) | = 18.59, SD = 6.03 | = 28.02, SD = 7.09 | 0.002 |
V25 | 12.96% (5.90-26.26%) | = 12.88, SD = 4.42 | = 20.91, SD = 6.98 | 0.001 |
V30 | 10.00% (4.68-21.43%) | = 9.72, SD = 3.45 | = 15.69, SD = 6.00 | 0.008 |
V35 | 9.92% (3.89-18.65%) | = 7.57, SD = 2.86 | = 11.95, SD = 4.64 | 0.011 |
V40 | 8.20% (3.29-13.61%) | = 5.91, SD = 2.48 | = 9.26, SD = 3.75 | 0.015 |
V45 | 7.42% (2.73-10.99%) | = 4.41, SD = 2.25 | = 6.54, SD = 3.47 | 0.007 |
V50 | 7.07%(1.94-8.82%) | = 3.15, SD = 1.94 | = 4.89, SD = 2.15 | 0.007 |
V55 | 6.75% (1.33-6.32%) | = 2.03, SD = 1.65 | = 3.19, SD = 1.75 | 0.033 |
V60 | 5.76% (0.80-4.20%) | = 1.23, SD = 1.09 | = 1.66, SD = 1.15 | 0.039 |
Abbreviation: MLD = mean lung dose; NTCP = normal tissue complication probability; SARP = severe acute radiation pneumonitis; * Comparison of dosimetric factors between patients who developed severe acute RP and those who did not