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Fig. 2 | Clinical Epigenetics

Fig. 2

From: Plasma cell-free DNA methylation profile before afatinib treatment is associated with progression-free and overall survival of patients with epidermal growth factor receptor gene mutation-positive non-small cell lung cancer

Fig. 2

Correlations between pre-afatinib cell-free DNA (cfDNA) methylation profile and progression-free survival (PFS) in patients with non-small cell lung cancer. Patients belonging to the initial cohort (n = 60) A and the validation cohort (n = 41) B are divided into a DNA hypermethylation group (Hyper) and a DNA hypomethylation group (Hypo) using the median values of the pre-afatinib cfDNA methylation levels in the initial cohort as the cutoff values (CV). Kaplan–Meier curves for PFS at 5 CpG sites showing the smallest P-values in the initial cohort using Log-rank test are shown. The Infinium assay probe ID for each CpG site and gene symbol are shown on the left side of each Kaplan–Meier curve

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