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Movsas B, Moughan J, Sarna L, Langer C, Werner-Wasik M, Nicolaou N, Komaki R, Machtay M, Wasserman T, Bruner DW
Quality of Life Supersedes the Classic Prognosticators for Long-Term Survival in Locally Advanced Non-Small-Cell Lung Cancer: An Analysis of RTOG 9801
Journal of Clinical Oncology (2009) 27:5816-5822.
Abstract
Purpose To determine the added value of quality of life (QOL) as a prognostic factor for overall survival ( OS) in patients with locally advanced non-small-cell lung cancer (NSCLC) treated on Radiation Therapy Oncology Group RTOG-9801. Patients and Methods Two hundred forty-three patients with stage II/IIIAB NSCLC received induction paclitaxel and carboplatin (PC) and then concurrent weekly PC and hyperfractionated radiation ( to 69.6 Gy). Patients were randomly assigned to amifostine (AM) or no AM during chemoradiotherapy. The following pretreatment factors were analyzed as prognostic factors for OS: Karnofsky performance status, stage, sex, age, race, marital status, histology, tumor location, hemoglobin, tobacco use, treatment arm (AM v no AM) and QOL scores (European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire C30 [QLQ-C30] and Lung Cancer 13 [LC-13]). A multivariate (MVA) Cox proportional hazards model was performed using a backwards selection process. Results Of the 239 analyzable patients, 91% had a baseline global QOL score. Median follow-up time was 59 months for patients still alive and 17 months for all patients. Median baseline QLQ-C30 global QOL score was 66.7 on both treatment arms. Whether the global QOL score was treated as a dichotomized variable ( based on the median score) or a continuous variable, all other variables fell out of the MVA for OS. Patients with a global QOL score less than 66.7 had an approximately 70% higher rate of death than patients with scores >= 66.7 (P = .004). A 10-point higher baseline global QOL score corresponded to a decrease in the hazard of death by approximately 10% (P = .004). The other independent QOL predictors for OS were the QLQ-C30 physical functioning (P = .011) and LC-13 dyspnea scores (P = .012). Conclusion In this analysis, baseline global QOL score replaced known prognostic factors as the sole predictor of long-term OS for patients with locally advanced NSCLC.
Note
Publication Date: 2009-12-01.
PMCID: PMC2793002
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