Table 2.

Results of Cox Proportional Hazards Regression Modeling

Covariate	AIC w/Covariates	AIC Changed	HR (95% CI)	P-value
Univariable Models
Distress Thermometera	97.38	−9.56	1.28 (1.11, 1.47)	<.001
Age at Diagnosisa	106.70	−0.24	1.04 (0.99, 1.09)	0.135
Risk Stratification at Diagnosisb	96.24	−10.70	6.92 (2.30, 20.79)	<.001
Charlson Scorea	107.34	0.40	1.18 (0.93, 1.48)	0.206
Ever Use of Therapyc	104.48	−2.46	3.99 (0.89, 17.87)	0.035
Ever Reported Fatiguec	108.27	1.33	1.58 (0.51, 4.91)	0.414
Frequency of Fatiguea	107.46	0.52	0.89 (0.73, 1.09)	0.224
Final Model
Distress Thermometera	93.53	-13.41	1.18 (1.01, 1.36)	0.030
Risk Stratification at Diagnosisb			4.02 (1.26, 12.83)	0.016

AIC=Akaike information criteria. HR=hazard ratio. CI=confidence interval

^aSingle point increase.

^bHigh vs. Intermediate/Low.

^cYes vs. No.

^dAIC change is calculated from the AIC of the model without covariates, 106.94.