Table 3.

Results of the two survival models: with time-independent and time-dependent covariates

	Cox PH			Cox PH with TD Cov.
	Estimate	Std. err	p-Value	Estimate	Std. err	p-Value
Age	0.01	0.01	0.083	0.01	0.01	0.010
Female	−0.16	0.13	0.223	−0.22	0.14	0.132
Black	−0.08	0.11	0.463	−0.05	0.11	0.634
Educatlor	−0.01	0.02	0.597	0.00	0.02	0.908
Living alore	0.21	0.11	0.060	0.07	0.12	0.544
Wks. from diagnosis	−0.02	0.01	0.003	−0.02	0.01	0.001
Site (VA)	−0.18	0.14	0.198	−0.19	0.14	0.174
Intervention	−0.03	0.10	0.768	0.01	0.10	0.911
Recurrent cancer	0.08	0.16	0.595	0.07	0.16	0.675
Chemotherapy	0.26	0.12	0.022	0.36	0.11	0.001
Radiation	−0.09	0.12	0.492	0.37	0.13	0.002
QoL	0.00	0.00	0.231	−0.02	0.00	<0.001