Table 3.

Multivariate Cox proportional hazards regression analysis.

Variables	HR	95% CI	p value
NF2 (+)	4.94	165-14.78	0.0043
Tumor size (≧30mm)	0.89	0.30-2.70	0.8411
Cyst (+)	2.29	0.83-6.31	0.1093
Removal rate (non-GTR)	3.15	0.69-14.38	0.1380
Adjuvant radiotherapy (+)	1.56	0.42-5.82	0.5045
NLR (≧2.21)	2.82	1.04-7.68	0.0423

NF2, neurofibromatosis type 2; GTR, gross total resection; NLR, neutrophil-to-lymphocyte ratio.

Factors which made statistically significant differences are shown in bold.