Moreover, after adjustment for age, gender, WHO histological type, Masaoka stage, presence of myasthenia gravis, tumor site, and radiotherapy, cg07154254(ELF3) (HR = 1.091 × 10−6 95% CI 0.000–0.098, P = 0.018) and cg02543462(ILRN) (HR = 9.744 × 10−4 95% CI 0.000–0.669, P = 0.037) remained significantly associated with overall survival. Here, ELF3 is linked to myasthenia gravis.