Table 3.
Univariate and multivariate analysis of dosimetric variables
| Univariate | Multivariate | |||||
|---|---|---|---|---|---|---|
| Variables | mean | SD | p value | p value | OR | 95% CI |
| Volume (cc) | 17.324 | 8.403 | 0.703 | |||
| Dmin (Gy) | 19.579 | 12.768 | 0.016 | |||
| Dmean (Gy) | 42.417 | 10.145 | 0.001 | |||
| Dmax (Gy) | 65.500 | 5.819 | 0.536 | |||
| Vx(%) | ||||||
| V10 | 91.111 | 16.341 | 0.124 | |||
| V15 | 88.863 | 19.032 | 0.128 | |||
| V20 | 86.660 | 21.072 | 0.093 | |||
| V25 | 84.135 | 23.041 | 0.070 | |||
| V30 | 80.583 | 25.409 | 0.038 | |||
| V35 | 74.270 | 25.425 | 0.011 | |||
| V40 | 62.308 | 23.050 | 0.001 | |||
| V45 | 50.496 | 21.220 | 0.000 | |||
| V50 | 38.915 | 19.477 | 0.000 | 0.000 | 1.051 | 1.027–1.076 |
| V55 | 24.598 | 16.243 | 0.000 | |||
| V60 | 12.111 | 12.856 | 0.006 | |||
| V30cc | 14.044 | 8.133 | 0.730 | |||
| Pmean (Gy) | 30.366 | 22.712 | 0.072 | |||
| Pmax (Gy) | 37.856 | 23.719 | 0.054 | 0.007 | 0.974 | 0.956–0.993 |
Abbreviation: SD standard deviation, OR odds ratio, CI confidence interval