On univariable linear regression analysis, the ALPS index correlated with age (β = −0.147, p = 0.038), sex (β = −0.139, p = 0.049), tumor grade (β = −0.361, p < 0.001), IDH1 mutation (β = 0.384, p < 0.001), peritumoral brain edema volume (β = −0.439, p < 0.001), enhancing tumor volume (β = −0.348, p < 0.001), and non-enhancing tumor volume (β = 0.307, p < 0.001). Here, IDH1 is linked to neoplasm.