UCA1 and neoplasm: And, the chi-squared test indicated that UCA1 expression in EC tissues was closely related to tumor size (p=0.033), alcohol status (p=0.004), lymphatic invasion (p < 0.001), distant metastasis (p=0.001), and TNM stage (p < 0.001), whereas no significant differences were found between UCA1 expression and age, gender, smoking status, tumor location, and differentiation (Table 1).