A significant association between 30-bp del-LMP1 and the susceptibility to NPC was found in the studies conducted in Asia (OR = 3.47, 95% CI: 1.36 to 8.86, P = 0.00), while for the studies conducted in Europe and North Africa, there was no association (OR = 1.01, 95% CI: 0.3 to 3.4, P = 0.00) (Figure 3A). Here, PDLIM7 is linked to nasopharyngeal carcinoma.