NFE2L2 and neoplasm: In the training set we identified an independent predictive value for high NFE2L2 mRNA expression levels [HRdisease specific death 0.8 (0.6–1.0), P = 0.041; HRdeath 0.8 (0.6–1.0), P = 0.023] especially in the subgroup of oestrogen receptor (ER) positive tumours [HRdisease specific death 0.6 (0.4–0.9), P = 0.008; HRdeath 0.6 (0.4–0.8), P = 0.001].