Table 5.

Logistic Regression Analysis for RP Grade 2 or Higher

Note.— CGE = cobalt 60 gray equivalent, HU = attenuation value in Hounsfield unit, MLD = mean lung dose, SE = standard error of the estimated coefficient parameter, SD = standard deviation.

^*Data in parentheses are 95% CIs.

^†Derived from two-sided hypothesis tests by using Wald χ².

^‡Scaled by 0.01.

^§Odds of RP grade 2 or higher increased with each of the six SUV-derived parameters. SUV parameters maintain significance after posthoc application of the sequentially rejective Bonferroni method (32) to adjust for multiplicity, with familywise error controlled at the α of .05 significance level.

^||Scaled by 10.