According to the ROC analysis result of the 450 K Infinium Methylation BeadChip, the cutoff values of 8 CpGs (ITGB6:cg21105318, cg07896068, cg18437633; NCALD: cg27637873, cg26782361, cg16265707; LAMA3: cg20937934, cg13270625) methylation were 42.77, 78.21, 81.02, 77.79, 74.21, 72.26, 63.65 and 60.16, respectively, in advanced high-grade serous ovarian cancer (N = 61). Here, LAMA3 is linked to ovarian serous adenocarcinoma.