ITGA2 and nasopharyngeal carcinoma: The only significant difference was observed with ITGA2 C807 polymorphism; NPC patients carrying C/C genotype had a mean survival time of 57.8 months while those carrying C/T and T/T genotypes survived for an average of 53.5 and 46.2 months, respectively (P-value = 0.052, log-rank test).