In this work, a significant correlation between KCNJ14 and ploidy level was observed in seven tumours, of which five tumours demonstrated a significantly-positive correlation, such as LUAD, STES, STAD, KIRC, and CHOL, whereas two tumours showed a negative correlation, namely UVM and KICH (Figure 5E). The gene discussed is KCNJ14; the disease is neoplasm.