FAS and nasopharyngeal carcinoma: Upon adjustment for age and stage, FAS −690 was not found to be a significant prognosticator for OS (p = 0.66) among NPC patients, even though the hazard ratio for patients with heterozygous CT was in the same direction as the one obtained by the univariate analysis (HR = 1.23, 95% CI: 0.48–3.17).