Expression of colon cancer-associated transcript-1 (CCAT-1) RNA in tumor and normal tissues of colon cancer patients with different blood glucose statuses. CCAT-1 RNA expression in tumor tissues of colon cancer patients with normal blood glucose levels was significantly higher than that in the distal normal intestinal mucosa (t=4.880, P<0.001). CCAT-1 RNA expression in tumor tissues of colon cancer patients with hyperglycemia was significantly higher than that in the distal normal intestinal mucosa (t=6.232, P<0.001). Furthermore, CCAT-1 RNA expression was significantly higher in colon cancer patients tissues with hyperglycemia than in tumor tissues of colon cancer patients with normal blood glucose levels (t=2.400, P=0.035). NG-N, normal mucosa tissue from colon cancer patients with normal blood glucose; HG-N, normal mucosa tissue from colon cancer patients with high blood glucose; NG-T, tumor tissue from colon cancer patients with normal blood glucose; HG-T, tumor tissue from colon cancer patients with high blood glucose.