Table 1. Clinical and molecular pathology features between training and validation sets.

Characteristic	Training set (N=75)	Validation set (N=75)	P-value
Gender			1.0000*
Male	38 (51%)	385 (51%)
Female	37 (49%)	37 (49%)
Age, years			0.1218†
Mean (range)	58.5 (10.9-85.2)	56.5 (19-85.6)
Age, per 20 years			0.3637*
<30	3	3
30-49	16	17
50-69	34	42
≥70	22	13
KPS			0.8412*
≥80	37 (67%)	42 (70%)
<80	18 (33%)	18 (30%)
IDH1 mutation			0.6091*
Mutation	7 (11%)	10 (15%)
Wild type	55 (89%)	57 (85%)
Radiation			1.0000*
Yes	71	71
No	4	4
Chemotherapy			0.5408*
Yes	62	58
No	13	17

Data are mean n (%) or otherwise stated.

^*χ² test or Fisher's exact test, †Student's t-test.