Qualitative and Quantitative MRI Analysis in IDH1 Genotype Prediction of Lower-Grade Gliomas: A Machine Learning Approach

Table 1

Patient characteristics.

Characteristic	Whole cohort ()	Training cohort ()	Validation cohort ()	value
Age (years)^†				0.75
Gender
Male	60 (58.8%)	38 (56.7%)	22 (62.9%)	0.55
Female	42 (41.2%)	29 (43.3%)	13 (37.1%)
WHO grade
II	61 (59.8%)	44 (65.7%)	17 (48.6%)	0.10
III	41 (40.2%)	23 (34.3%)	18 (51.4%)
IDH1 status
Mutant	50 (49.0%)	33 (49.3%)	17 (48.6%)	0.95
Wildtype	52 (51.0%)	34 (50.7%)	18 (51.4%)

Unless otherwise specified, data are counts (percentages). WHO: World Health Organization; IDH 1: isocitrate dehydrogenase 1. ^†Data are . value was obtained by comparing each variable between training and validation cohorts.