Zoe Wainer1, Gavin M Wright2, Karla Gough3, Marissa G Daniels4, Prudence A Russell5, Peter Choong6, Matthew Conron7, David Ball8, Benjamin Solomon9. 1. Department of Surgery, The University of Melbourne, St Vincent's Hospital, Melbourne, Australia. Electronic address: zoewainer@gmail.com. 2. Department of Surgery, The University of Melbourne, St Vincent's Hospital, Melbourne, Australia; Department of Cardiothoracic Surgery, St Vincent's Hospital, Melbourne, Australia. 3. Department of Cancer Experiences Research, The Peter MacCallum Cancer Centre, Melbourne, Australia. 4. The University of Queensland Thoracic Research Centre, The Prince Charles Hospital, Brisbane, Australia. 5. Department of Anatomical Pathology, The University of Melbourne, St Vincent's Hospital, Melbourne, Australia. 6. Department of Surgery, The University of Melbourne, St Vincent's Hospital, Melbourne, Australia. 7. Department of Respiratory Medicine and Sleep Medicine, St Vincent's Hospital, Melbourne, Australia; Department of Medicine, The University of Melbourne, Melbourne, Australia. 8. Department of Radiation Oncology, The Peter MacCallum Cancer Centre, Melbourne, Australia. 9. Department of Oncology, The Peter MacCallum Cancer Centre, University of Melbourne, Parkville, Australia.
Abstract
INTRODUCTION: Non-small-cell lung cancer (NSCLC) has disproportionately negative outcomes in men compared with women. The importance of the relationship between sex and tumor, node, metastases (TNM) staging system remains unknown. The objective of this study was to investigate the effect of sex on NSCLC survival for each stage in the eighth edition of the TNM staging system in NSCLC. PATIENTS AND METHODS: Two cohorts treated surgically with curative intent between 2000 and 2010 were analyzed. The primary cohort was from Australia with a second population set from the Surveillance, Epidemiology, and End Results (SEER) database. Univariate and multivariate analyses of putative and validated prognostic factors were undertaken to investigate sex-dependent prognostication with detailed analyses of sex differences in each TNM stage. The primary outcome was disease-specific survival (DSS) at 5 years. RESULTS: Inclusion criteria were met by 555 patients in the Australian cohort, 335 men (60.4%) and 220 (39.6%) women; and 47,706 patients from the SEER cohort, 24,671 men (51.7%) and 23,035 women (48.3%). Five-year DSS was significantly worse for men in multivariate analyses for the Australian (hazard ratio [HR], 1.44; 95% confidence interval [CI], 1.04-1.98; P = .026) and SEER (HR, 1.24; 95% CI, 1.20-1.28; P < .001) cohorts. Detailed analysis of TNM stage sex differences revealed a consistent pattern of men having worse survival than women across stages in both cohorts. CONCLUSION: The poorer survival in men with NSCLC presents research and clinical communities with an important challenge. This study's findings suggest that for men and women diagnosed with NSCLC, and managed surgically, stage-specific outcomes should be quoted separately and consideration to a rapid prognostic score with sex combined with staging as a key element.
INTRODUCTION:Non-small-cell lung cancer (NSCLC) has disproportionately negative outcomes in men compared with women. The importance of the relationship between sex and tumor, node, metastases (TNM) staging system remains unknown. The objective of this study was to investigate the effect of sex on NSCLC survival for each stage in the eighth edition of the TNM staging system in NSCLC. PATIENTS AND METHODS: Two cohorts treated surgically with curative intent between 2000 and 2010 were analyzed. The primary cohort was from Australia with a second population set from the Surveillance, Epidemiology, and End Results (SEER) database. Univariate and multivariate analyses of putative and validated prognostic factors were undertaken to investigate sex-dependent prognostication with detailed analyses of sex differences in each TNM stage. The primary outcome was disease-specific survival (DSS) at 5 years. RESULTS: Inclusion criteria were met by 555 patients in the Australian cohort, 335 men (60.4%) and 220 (39.6%) women; and 47,706 patients from the SEER cohort, 24,671 men (51.7%) and 23,035 women (48.3%). Five-year DSS was significantly worse for men in multivariate analyses for the Australian (hazard ratio [HR], 1.44; 95% confidence interval [CI], 1.04-1.98; P = .026) and SEER (HR, 1.24; 95% CI, 1.20-1.28; P < .001) cohorts. Detailed analysis of TNM stage sex differences revealed a consistent pattern of men having worse survival than women across stages in both cohorts. CONCLUSION: The poorer survival in men with NSCLC presents research and clinical communities with an important challenge. This study's findings suggest that for men and women diagnosed with NSCLC, and managed surgically, stage-specific outcomes should be quoted separately and consideration to a rapid prognostic score with sex combined with staging as a key element.
Authors: Matthijs Oudkerk; ShiYuan Liu; Marjolein A Heuvelmans; Joan E Walter; John K Field Journal: Nat Rev Clin Oncol Date: 2020-10-12 Impact factor: 66.675
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