Table 3.

Factors associated with PFS in 33 patients with skull base meningiomas with extracranial extensions.

Variables	Univariate	Multivariate
	P-value	P-value	HR (95% CI)
Age (<50)	0.273	NA
Sex (female)	0.097	0.159	0.375 (0.096–1.468)
Lesion recurrence	0.260	NA
Heterogeneous enhancement	0.564	NA
Higher histological grade	0.001*	0.37	2.314 (0.37–14.46)
Ki-67 LI ≥ 5	<0.001*	0.008*	9.774 (1.789–53.387)
EOR (NGTR)	0.024*	0.038*	10.937 (1.147–104.314)
Adjuvant RT (absent)	0.556	0.024*	15.632 (1.441–169.524)

^*P < 0.05; HR, hazard ratio; EOR, extent of resection; NGTR, not GTR; NA, not applicable.