HOTAIR and carcinoma of esophagus: In esophageal carcinoma, high HOTAIR expression was significantly associated with TNM stage (III/IV vs. I/II: OR 6.90, 95%CI: 2.81–16.9) and N status (N2/3 vs. N0/1: OR 3.29, 95% CI:1.18–9.16) whereas no significant correlation was found with T classification (T3/4 vs. T1/2: OR 2.15, 95% CI: 0.24–19.5) or grade of differentiation (G3/4 vs. G1/2: OR 1.14, 95% CI: 0.10–13.0).