DAPK1 and colorectal carcinoma: As is shown in Fig 5, DAPK1 methylation was not correlated with the T stage of gastrointestinal cancer (T3+T4 vs. T1+T2, OR = 0.89, 95%CI:0.59–1.34, P = 0.57, fixed effects model), nor with that of EC, GC, or CRC (Fig 5).