Table 4.

Cox regression model for risk factors predicting PFS.

Variable	Number of patients	Recurrence	Univariate Analysis		Multivariate Analysis
			HR (95% CI)	P value	HR (95% CI)	P value
Overall	60	32 (53.3)
Age
Age ≤ 30	26	11 (34.4)	Reference		Reference
Age>30	34	21 (65.6)	2.436 (1.135-5.226)	0.022*	2.620 (1.183-5.804)	0.018*
Sex
Female	32	17 (53.1)	Reference
Male	28	15 (53.6)	1.259 (0.620-2.556)	0.524
Primary
Yes	50	25 (50)	Reference
No	10	7 (70)	1.769 (0.750-4.173)	0.193
Location
Others	29	13 (44.8)	Reference
Temporal	31	19 (61.3)	1.724 (0.846-3.511)	0.134
GTR
Yes	23	14 (60.9)	Reference		Reference
No	37	18 (48.6)	1.829 (0.897-3.729)	0.097	2.633 (1.203-5.762)	0.015*
RT
Yes	46	19 (41.3)	Reference		Reference
No	14	13 (92.9)	4.105 (1.998-8.432)	<0.001*	2.995 (1.344-6.673)	0.007*
CT
Yes	36	12 (33.3)	Reference		Reference
No	24	20 (83.3)	2.724 (1.329-5.585)	0.006*	2.371 (1.034-5.437)	0.042*

*: p< 0.05 was considered statistically significant.