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Table 2

%Multiple covariate model using treatment, extent of surgery, radiation dose, sex, age, Karnofsky performance score, side of tumor, treating institution, and time of diagnosis to registration and actual postradiotherapy chemotherapy

VariableContrastCoefficientSEP
Treatment DFMO-PCV vs. PCV 0.07 0.13 0.61 
Surgery extent GTRavs. biopsy −0.49 0.20 0.013 
 STR vs. biopsy −0.28 0.19 0.23 
Radiation ↑ 1 cGy −0.0000018 0.00019 0.92 
Sex Male vs. female 0.012 0.14 0.93 
Age ↑ year 0.029 0.006 <0.001 
Karnofsky score ↑ unit −0.055 0.009 <0.001 
Side of tumor Left vs. right −0.49 0.14 <0.001 
Treatment center MDACC vs. others −0.032 0.14 0.83 
Diagnosis to registration ↑ 1 week −0.01 0.009 0.15 
VariableContrastCoefficientSEP
Treatment DFMO-PCV vs. PCV 0.07 0.13 0.61 
Surgery extent GTRavs. biopsy −0.49 0.20 0.013 
 STR vs. biopsy −0.28 0.19 0.23 
Radiation ↑ 1 cGy −0.0000018 0.00019 0.92 
Sex Male vs. female 0.012 0.14 0.93 
Age ↑ year 0.029 0.006 <0.001 
Karnofsky score ↑ unit −0.055 0.009 <0.001 
Side of tumor Left vs. right −0.49 0.14 <0.001 
Treatment center MDACC vs. others −0.032 0.14 0.83 
Diagnosis to registration ↑ 1 week −0.01 0.009 0.15 
a

GTR, gross total resection;cGy, centi-Gray; STR, subtotal resection.

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