ABCA1 and glioblastoma: The disease-free survival (DFS) data in Figure 2B show that, in the TCGA cohort, poor DFS in KIRC patients (P = 0.025) and CHOL patients (P = 0.13) was associated with reduced ABCA1 expression, whereas high ABCA1 expression was associated with poor DFS in GBM patients (P = 0.07) and KICH patients (P = 0.15).