Table 2.

Comparisons of the ALPS index according to sex, tumor grade, and IDH1 mutation status with age adjustment.

Characteristics	ALPS index	Pairwise comparison	p-value	95% CI
Sex		Woman vs. man	0.098	−0.009 to 0.105
Woman	1.405 ± 0.216
Man	1.348 ± 0.190
Tumor grade		Grade II vs. III	0.670	−0.037 to 0.112
Grade II	1.454 ± 0.186	Grade II vs. IV	<0.001	0.178–0.333
Grade III	1.421 ± 0.214	Grade III vs. IV	<0.001	0.135–0.301
Grade IV	1.220 ± 0.112
IDH1 mutation		Wild-type vs. mutant	<0.001	−0.235 to −0.097
Wild-type	1.311 ± 0.151
Mutant	1.466 ± 0.201

Data are the mean ± SD.

CI, confidence interval; ALPS, analysis along the perivascular space.