As shown in Table 3, high SNHG15 expression was associated with advanced TNM stage (OR = 3.05, 95% CI = 2.31–4.02, P < 0.00001; see Table 3 and Figure 5(a)), lymph node metastasis (OR = 3.20, 95% CI = 2.30–4.45, P < 0.00001; see Table 3 and Figure 5(b)), and distant metastases (OR = 5.05, 95% CI = 2.15–11.85, P=0.0002; see Table 3 and Figure 5(c)). Here, SNHG15 is linked to metastatic malignant neoplasm in the lymph nodes.