TABLE 3

Cox Regression Analysis of OS and PFS of Predictive Factors

	OS				PFS
	Univariate		Multivariate		Univariate		Multivariate
Predictive factor	P	HR	P	HR	P	HR	P	HR
Age	0.939				0.325
No. of recurrences	0.001	2.243	0.645		0.001	2.044	0.267
Baseline KPS	0.06				0.915
Dexamethasone treatment	0.176				0.731
Tumor size change by MRI	0.016	3.220	0.382		0.003	4.151	0.054
Lack of ¹⁸F-FLT reduction, 0−2 wk	0.001	5.416	0.795		0.024	2.590	0.264
Lack of ¹⁸F-FLT reduction, 0–6 wk	<0.001	7.869	<0.001	10.051	0.001	5.225	0.001	5.636
Lack of ¹⁸F-FLT increase, 2–6 wk	0.001	5.739	0.674		0.009	3.197	0.833