Comparison of performance of top genes in our study and previous single gene studies.

COBRA: Combined bisulfite restriction analysis, MSP: methylation-specific polymerase chain reaction, PS: pyrosequencing, N: normal, LGD: low-grade dysplasia, HGD: high-grade dysplasia, CRC: colorectal cancer, TU: precancerous and cancerous tissue (except metastatic colorectal cancer), AD: adenoma (level of dysplasia not specified). Comparison of performance of top genes in our study and previous single gene studies.