. Author manuscript; available in PMC: 2017 Dec 1.

Published in final edited form as: World Neurosurg. 2017 Jul 25;108:151–156. doi: 10.1016/j.wneu.2017.07.109

Table 3.

Univariable (left – Model 1) and multivariable (right – Model 3) logistic regression analyses demonstrating prognostic significance of CITV point groupings for one-year survival in comparison to ds-GPA (middle – Model 2)

	MODEL 1 – CITV alone		MODEL 2 – ds-GPA		MODEL 3 – ds-GPA-CITV
	Hazard Ratio	Statistical Significance	Hazard Ratio	Statistical Significance	Hazard Ratio	Statistical Significance
CITV (per point grouping increase)	0.314	P=.007	–	–	0.256	P=.042
KPS (per point grouping increase)	–	–	1.659	P<.001	1.620	P<.001
Number of metastases (per point grouping increase)	–	–	0.456	P=.002	0.451	P=.003
Akaike Information Criteria			382		380

CITV = Cumulative Intracranial Tumor Volume; ds-GPA = disease-specific graded prognostic assessment; KPS = Karnofsky Performance Score.