Abstract
To date, few studies have reported the prognostic value of pre-treatment hemoglobin levels in patients with non-small cell lung cancer (NSCLC). In the present study, 416 patients with NSCLC were retrospectively reviewed. Univariate Cox proportional hazards regression analysis demonstrated that patients with normal pre-treatment hemoglobin (NPHb) levels had a greater chance of surviving for longer period, than did patients with low pre-treatment hemoglobin (LPHb) levels (HR, 2.05; 95% CI, 1.63-2.57; P<0.001). After adjustment for age, sex, tumor-node-metastasis stage, Karnofsky performance status, lung lobectomy, chemotherapy and radiotherapy, multivariate Cox proportional hazards regression analysis revealed that LPHb was an independent predictor for the poor prognosis of patients with NSCLC (HR, 1.86; 95% CI, 1.47-2.36; P<0.001). Estimation of the cumulative survival revealed that the overall survival of NPHb patients was significantly higher than that for LBHb patients (P<0.05), independent of whether the patients had received lung lobectomy or chemotherapy treatments. In conclusion, low pre-treatment hemoglobin levels were demonstrated to be an independent biomarker for poor prognosis in patients with NSCLC.
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