STEAP1 and lung cancer: The results revealed that the prognosis of lung cancer patients with low STEAP1 expression was significantly better than that of lung cancer patients with a high expression of STEAP1 (hazard ratio [HR] 1.27 [95% confidence interval 1.12–1.44]; log-rank P = 0.00026) and STEAP1, which therefore suggested poor patient prognosis.