Association of the Geriatric Nutritional Risk Index with the survival of patients with non-small-cell lung cancer after platinum-based chemotherapy
Abstract Background The nutritional status can potentially affect the efficacy of cancer therapy. We evaluated the relationships between the nutritional status and the efficacy of chemotherapy in patients with non-small-cell lung cancer (NSCLC). Methods The Geriatric Nutritional Risk Index (GNRI), calculated from body weight and serum albumin, was retrospectively evaluated in 148 patients with NSCLC who received first-line platinum-based chemotherapy and scored as low or high. Results Patients with a high GNRI had a significantly higher overall response rate (ORR; 61.8% [95% confidence interval {CI} = 52.5–70.3%] vs. 34.2% [95% CI = 21.2–50.1%, p < 0.004), longer median progression-free survival (PFS; 6.3 months [95% CI = 5.6–7.2 months] vs. 3.8 months [95% CI = 2.5–4.7 months], p < 0.001), and longer median overall survival (OS; 22.8 months [95% CI = 16.7–27.2 months] vs. 8.5 months [95% CI = 5.4–16.0 months], p < 0.001) than those with low GNRI. High GNRI was independently predictive of longer PFS and OS, but not ORR, in multivariate Cox proportional hazard analyses. In 71 patients who received second-line non-platinum chemotherapy, patients with high GNRI exhibited significantly longer PFS and OS than those with low GNRI (both p < 0.001). Conclusions GNRI was predictive of prolonged survival in patients with NSCLC who received first-line platinum-based chemotherapy and second-line non-platinum chemotherapy. Assessment of the nutritional status may be useful for predicting the efficacy of chemotherapy.