Table 2:

Clinical and imaging predictors associated with TTP in PCNSL

Variable	Hazard Ratio	95% CI	P Value
Age	0.98	0.94–1.03	.55
Atypical finding^{^a}	4.41	1.32–14.71	.016
CSF-total protein	1.00	0.99–1.00	.70
ECOG
2 (reference)
3 or 4	5.82	1.07–31.66	.04
Serum LDH level	1.01	1.00–1.02	.013
Deep location^{^b}	1.75	0.33–9.08	.50

↵a Atypical findings: presence of hemorrhage or necrosis.
↵b Deep location: thalamus, basal ganglia, corpus callosum, periventricular area, cerebellum.