PVT1 and lung cancer: The results found that there was a significant relationship between PVT1 overexpression and poor OS of patients with gastric cancer (HR = 1.63, 95% CI: 1.09–2.17, P < 0.001), gynecology cancer (HR = 1.33, 95% CI: 1.08–1.57, P < 0.001) and lung cancer (HR = 1.94, 95% CI: 1.31–2.57, P < 0.001) (Figure 2).