Table 3. Baseline tumor characteristics and treatment between patients with and without tumor progression.

Characteristics	Progression (n=165)	Non-progression (n=122)	t/X2 value	P value
Location			1.411	0.703
Supracerebral lobe (n=219)	127 (77.0)	92 (75.4)
Supracerebral midline (n=34)	18 (10.9)	16 (13.1)
Cerebellum (n=29)	16 (9.7)	13 (10.7)
Brain stem (n=5)	4 (2.4)	1 (0.8)
Diameter (mm)	32.7±9.3	29.4±8.8	3.040	0.003
Classification			1.029	0.599
Oligodendroglioma	27 (16.4)	20 (16.4)
Astrocytoma	118 (71.5)	87 (71.3)
Oligoastrocytoma	20 (12.1)	15 (112.3)
Operation			6.525	0.011
Partial resection	106 (64.2)	60 (49.2)
Total/enlarged resection	59 (35.8)	62 (50.8)
Radiotherapy			0.182	0.670
Yes	84 (50.9)	59 (48.4)
No	81 (49.1)	63 (51.6)
Chemotherapy			0.038	0.846
Yes	79 (47.9)	57 (46.7)
No	86 (52.1)	65 (53.3)