DAPK1 and adenocarcinoma: Furthermore, DAPK promoter methylation frequency did not differ between adenocarcinoma and the group of other tumor types [34.7% (25/72) vs. 30% (15/50), p = 0.583], or between stage-I and the group of other stages [31.5% (17/54) vs. 31.5% (17/54), p = 1.000].