Table 2. Multivariate analysis of prognostic factors for OS and EFS in patients with medulloblastoma (n = 173).

Factors	OS		EFS
	OR(95%CI)	p-value	OR(95%CI)	p-value
Age (Children vs. Adults)	0.69(0.38–1.26)	0.229	0.73(0.42–1.25)	0.251
CSF Shunting(Yes vs. No)	0.71(0.42–1.20)	0.202	0.73(0.45–1.20)	0.201
Involvementa (Yes vs. No)	0.60(0.29–1.22)	0.157	0.70(0.36–1.40)	0.306
Complete resection (Yes vs. No)	1.23(0.58–2.58)	0.590	1.56(0.78–3.10)	0.208
RTb (Yes vs. No)	8.18(4.52–14.80)	<0.001	6.74(3.83–11.87)	<0.001
CHTc (Yes vs. No)	1.75(1.04–2.96)	0.036	1.63(1.00–2.65)	0.050

OR: odds ratio, CI: confidence interval.

^ainvolving brain stem or IV ventricle floor by the tumor.

^bindicating postoperative primary radiation therapy.

^cindicating postoperative primary chemotherapy.