Fig 2: CHRNA5 and CD274 expression is correlated in the lung cancer dataset. A CHRNA5 expression correlated with poor prognosis, especially in LUAD. Lung cancer, n = 1925. LUSC, n = 524. LUAD, n = 719. B CD274 expression correlated with poor prognosis, especially in LUAD. Lung cancer, n = 1144. LUSC, n = 271. LUAD, n = 672. C The coexpression of CHRNA5 and CD274 and clinical outcomes in LUAD. LUAD, n = 365. LUAD Stage 1, n = 192. LUAD Stage 2–4, n = 164. D Expression of CHRNA5 and CD274 in LUAD smokers and non-smokers. Smokers, n = 118. Non-smoker, n = 75. E Correlation among the expression of CHRN?5, STAT3 and CD274 in LUAD