American Association for Cancer Research

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

Variable	Contrast	Coefficient	SE	P
Treatment	DFMO-PCV vs. PCV	0.07	0.13	0.61
Surgery extent	GTR^a vs. 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

Variable	Contrast	Coefficient	SE	P
Treatment	DFMO-PCV vs. PCV	0.07	0.13	0.61
Surgery extent	GTR^a vs. 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

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

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