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Journal of Cancer Epidemiology
Volume 2015, Article ID 269304, 9 pages
http://dx.doi.org/10.1155/2015/269304
Research Article

Non-Small-Cell Lung Cancer Clinicopathologic Features and Survival Outcomes in Asian Pacific Islanders Residing in the United States: A SEER Analysis

1Department of Internal Medicine, Detroit Medical Center/Wayne State University, Detroit, MI 48201, USA
2Department of Hematology-Oncology, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
3Department of Internal Medicine, Lenox Hill Hospital, New York, NY 10065, USA
4Department of Pulmonology, Lenox Hill Hospital, New York, NY 10065, USA
5Department of Hematology-Oncology, Lenox Hill Hospital, New York, NY 10065, USA

Received 1 July 2014; Revised 27 November 2014; Accepted 27 November 2014

Academic Editor: P. Vineis

Copyright © 2015 Muhammad Saad Hamid et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. The objective of our study was to ascertain racial/ethnic disparities in Asian/Pacific Islanders (API) for non-small-cell lung cancer (NSCLC) clinicopathologic features and survival outcomes based on various tumor characteristics and treatment modalities. Method. SEER database identified invasive NSCLC cases from 2004 to 2010. Variables included American Joint Committee on Cancer (AJCC) stage 7, tumor grade, tumor size, histology, age, marital status, radiation, surgery, and reason for no surgery. The Kruskall-Wallis test and the test were used to examine differences between races/ethnicities and the referent, non-Hispanic white (NHW). Multivariate Cox proportional analyses were used to establish the weight of the prognostic significance contributing to disease-specific survival (DSS) in each AJCC stage. Result. Improved DSS was seen in API across stage I (HR: 0.78), stage II (HR: 0.79), and stage IV (HR: 0.86), respectively, compared to the referent NHW (). Prognosis was improved by being married, being female gender, AIS histology, and birth outside the US (). Conclusion. We have demonstrated improved survival among API in early stage and stage IV NSCLC. Further research is necessary to clarify the role of lifestyle and tumor biology for these differences.