1
|
Bonner SN, Curley R, Love K, Akande T, Akhtar A, Erhunmwunsee L. Structural Racism and Lung Cancer Risk: A Scoping Review. JAMA Oncol 2024; 10:122-128. [PMID: 38032677 DOI: 10.1001/jamaoncol.2023.4897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Importance Structural racism is associated with persistent inequities in health and health outcomes in the US for racial and ethnic minority groups. This review summarizes how structural racism contributes to differential population-level exposure to lung cancer risk factors and thus disparate lung cancer risk across different racial and ethnic groups. Observations A scoping review was conducted focusing on structural racism and lung cancer risk for racial and ethnic minority groups. The domains of structural racism evaluated included housing and built environment, occupation and employment, health care, economic and educational opportunity, private industry, perceived stress and discrimination, and criminal justice involvement. The PubMed, Embase, and MedNar databases were searched for English-language studies in the US from January 1, 2010, through June 30, 2022. The review demonstrated that racial and ethnic minority groups are more likely to have environmental exposures to air pollution and known carcinogens due to segregation of neighborhoods and poor housing quality. In addition, racial and ethnic minority groups were more likely to have exposures to pesticides, silica, and asbestos secondary to higher employment in manual labor occupations. Furthermore, targeted marketing and advertisement of tobacco products by private industry were more likely to occur in neighborhoods with more racial and ethnic minority groups. In addition, poor access to primary care services and inequities in insurance status were associated with elevated lung cancer risk among racial and ethnic minority groups. Lastly, inequities in tobacco use and cessation services among individuals with criminal justice involvement had important implications for tobacco use among Black and Hispanic populations. Conclusions and Relevance The findings suggest that structural racism must be considered as a fundamental contributor to the unequal distribution of lung cancer risk factors and thus disparate lung cancer risk across different racial and ethnic groups. Additional research is needed to better identify mechanisms contributing to inequitable lung cancer risk and tailor preventive interventions.
Collapse
Affiliation(s)
- Sidra N Bonner
- Department of Surgery, University of Michigan, Ann Arbor
- National Clinician Scholars Program, University of Michigan, Ann Arbor
| | - Richard Curley
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Kyra Love
- Library Services, City of Hope, Duarte, California
| | - Tola Akande
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Aamna Akhtar
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Loretta Erhunmwunsee
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
- Department of Populations Sciences, City of Hope National Medical Center, Duarte, California
| |
Collapse
|
2
|
Verplancke KB, Keirns DL, McMahon K, Creech ZA, Truong GT, Silberstein PT, Dahl MB. Association Between Demographic and Socioeconomic Factors and Diagnosis of Advanced Non-small Cell Lung Cancer: An Analysis of the National Cancer Database. Cureus 2023; 15:e44351. [PMID: 37779816 PMCID: PMC10540479 DOI: 10.7759/cureus.44351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
Introduction Lung cancer is a prevalent and potentially lethal cancer. The stage at initial presentation for diagnosis predicts mortality and helps to guide treatment options. Thus, it is critical to determine what factors impact the stage of cancer at diagnosis. This study sought to determine if certain socioeconomic and demographic factors are associated with receiving an early (Stage 0-I) or advanced (Stage IV) diagnosis of non-small cell lung cancer (NSCLC). Methods Using the National Cancer Database (NCDB), 1,149,539 patients were identified as having an NCDB Analytic Stage Group diagnosis of Stage 0-I (early) versus Stage IV (advanced) NSCLC between 2004 and 2018. Patients with early and delayed diagnoses were compared based on specific characteristics including sex, race, ethnicity, number of comorbid conditions, insurance status, median annual income, level of education, geographic location, and reporting facility. Using IBM SPSS Statistics for Windows, Version 28 (Released 2021; IBM Corp., Armonk, New York, United States), the data underwent analysis using binary multivariate logistic regression, chi-square analyses, and one-way ANOVA. Results Factors associated with an advanced diagnosis of NSCLC include being male, Black, Native American, or Hispanic. Compared to patients with at least one comorbid condition, those without comorbid conditions are more likely to present with advanced disease. Patients with private insurance, Medicaid, Medicare, or other government insurance are all less likely to present with advanced-stage cancer than patients without insurance. Compared to patients in the lowest median household income quartile, those in the second and fourth quartiles are diagnosed earlier. Patients living in areas where a higher proportion of residents lack a high school diploma are more likely to present with advanced NSCLC. Additionally, living in the Midwest and Western United States and presenting to Community Cancer programs are associated with advanced disease at initial presentation. Conclusions Factors that were associated with the advanced presentation of NSCLC included being male, Black, Native American, or Hispanic, having a lack of comorbid conditions or insurance, earning a lower median annual income, and living in a zip code where a higher proportion of residents lack a high school diploma. Additionally, residing in the Midwest and Western United States and seeking care at Community Cancer programs were associated with advanced disease at initial presentation. Understanding that certain socioeconomic and demographic factors impact the stage at initial diagnosis of NSCLC can allow for targeted intervention strategies aimed at the most at-risk individuals, areas, and facilities.
Collapse
Affiliation(s)
| | | | - Kevin McMahon
- School of Medicine, Creighton University, Omaha, USA
| | | | | | | | | |
Collapse
|
3
|
Gupta A, Omeogu C, Islam JY, Joshi A, Zhang D, Braithwaite D, Karanth SD, Tailor TD, Clarke JM, Akinyemiju T. Socioeconomic disparities in immunotherapy use among advanced-stage non-small cell lung cancer patients: analysis of the National Cancer Database. Sci Rep 2023; 13:8190. [PMID: 37210410 DOI: 10.1038/s41598-023-35216-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/15/2023] [Indexed: 05/22/2023] Open
Abstract
Socioeconomic and racial disparities exist in access to care among patients with non-small cell lung cancer (NSCLC) in the United States. Immunotherapy is a widely established treatment modality for patients with advanced-stage NSCLC (aNSCLC). We examined associations of area-level socioeconomic status with receipt of immunotherapy for aNSCLC patients by race/ethnicity and cancer facility type (academic and non-academic). We used the National Cancer Database (2015-2016), and included patients aged 40-89 years who were diagnosed with stage III-IV NSCLC. Area-level income was defined as the median household income in the patient's zip code, and area-level education was defined as the proportion of adults aged ≥ 25 years in the patient's zip code without a high school degree. We calculated adjusted odds ratios (aOR) with 95% confidence intervals (95% CI) using multi-level multivariable logistic regression. Among 100,298 aNSCLC patients, lower area-level education and income were associated with lower odds of immunotherapy treatment (education: aOR 0.71; 95% CI 0.65, 0.76 and income: aOR 0.71; 95% CI 0.66, 0.77). These associations persisted for NH-White patients. However, among NH-Black patients, we only observed an association with lower education (aOR 0.74; 95% CI 0.57, 0.97). Across all cancer facility types, lower education and income were associated with lower immunotherapy receipt among NH-White patients. However, among NH-Black patients, this association only persisted with education for patients treated at non-academic facilities (aOR 0.70; 95% CI 0.49, 0.99). In conclusion, aNSCLC patients residing in areas of lower educational and economic wealth were less likely to receive immunotherapy.
Collapse
Affiliation(s)
- Anjali Gupta
- Department of Population Health Sciences, Duke University School of Medicine, 215 Morris Street, Durham, NC, 27708, USA
| | - Chioma Omeogu
- Department of Population Health Sciences, Duke University School of Medicine, 215 Morris Street, Durham, NC, 27708, USA
| | - Jessica Y Islam
- Department of Population Health Sciences, Duke University School of Medicine, 215 Morris Street, Durham, NC, 27708, USA
- Cancer Epidemiology Program, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Ashwini Joshi
- Department of Population Health Sciences, Duke University School of Medicine, 215 Morris Street, Durham, NC, 27708, USA
| | - Dongyu Zhang
- Johnson and Johnson, Medical Device Epidemiology, New Brunswick, NJ, USA
| | | | - Shama D Karanth
- Institute on Aging, University of Florida, Gainesville, FL, USA
| | - Tina D Tailor
- Department of Radiology, Duke University School of Medicine, Durham, NC, USA
| | - Jeffrey M Clarke
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Tomi Akinyemiju
- Department of Population Health Sciences, Duke University School of Medicine, 215 Morris Street, Durham, NC, 27708, USA.
| |
Collapse
|
4
|
Berrian J, Liu Y, Ezenwajiaku N, Moreno‐Aspitia A, Holton SJ, Toriola AT, Colditz GA, Housten AJ, Hall L, Fiala MA, Ademuyiwa FO. Impact of the COVID-19 pandemic on breast, colorectal, lung, and prostate cancer stage at diagnosis according to race. Cancer Med 2023; 12:7381-7388. [PMID: 36404491 PMCID: PMC10067026 DOI: 10.1002/cam4.5439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/28/2022] [Accepted: 11/03/2022] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To determine if the COVID-19 pandemic has further exacerbated racial disparities in late-stage presentation of breast, colorectal, lung, and prostate cancers. METHODS We conducted a registry-based retrospective study of patients with newly reported diagnoses of breast, colorectal, lung, and prostate cancers between March 2019-June 2019 (pre-COVID-19) and March 2020-June 2020 (early-COVID-19). We compared the volume of new diagnoses and stage at presentation according to race between both periods. RESULTS During the study period, a total of 3528 patients had newly diagnosed cancer; 3304 of which had known disease stages and were included in the formal analyses. 467 (14.1%) were Blacks, and 2743 were (83%) Whites. 1216 (36.8%) had breast, 415 (12.6%) had colorectal, 827 (25%) had lung, and 846 (25.6%) had prostate cancers, respectively. The pre-COVID-19 period included 2120 (64.2%), and the early-COVID-19 period included 1184 (35.8%), representing a proportional 44.2% decline in the volume of new cases of breast, colorectal, lung, and prostate cancers, p < 0.0001. Pre-COVID-19, 16.8% were diagnosed with metastatic disease, versus 20.4% early-COVID-19, representing a proportional increase of 21.4% in the numbers of new cases with metastatic disease, p = 0.01. There was a non-significant proportional decline of 1.9% in Black patients diagnosed with non-metastatic breast, colorectal, lung, and prostate cancers early-COVID-19 (p = 0.71) and a non-significant proportional increase of 7% in Black patients diagnosed with metastatic disease (p = 0.71). Difference-in-difference analyses showed no statistically significant differences in metastatic presentation comparing Black to White patients. CONCLUSION While we identified substantial reductions in the volume of new cancer diagnoses and increases in metastatic presentations due to the COVID-19 pandemic, the impact was similar for White and Black patients.
Collapse
Affiliation(s)
| | - Ying Liu
- Washington University School of MedicineSt. LouisMissouriUSA
| | | | | | | | | | | | | | - Lannis Hall
- Washington University School of MedicineSt. LouisMissouriUSA
| | - Mark A. Fiala
- Washington University School of MedicineSt. LouisMissouriUSA
| | | |
Collapse
|
5
|
Maki KG, Talluri R, Toumazis I, Shete S, Volk RJ. Impact of U.S. Preventive Services Task Force lung cancer screening update on drivers of disparities in screening eligibility. Cancer Med 2023; 12:4647-4654. [PMID: 35871312 PMCID: PMC9972155 DOI: 10.1002/cam4.5066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/06/2022] [Accepted: 07/13/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND In 2021, the U.S. Preventive Services Task Force (USPSTF) updated its recommendation to expand lung cancer screening (LCS) eligibility and mitigate disparities. Although this increased the number of non-White individuals who are eligible for LCS, the update's impact on drivers of disparities is less clear. This analysis focuses on racial disparities among Black individuals because members of this group disproportionately share late-stage lung cancer diagnoses, despite typically having a lower intensity smoking history compared to non-Hispanic White individuals. METHODS We used data from the National Health Interview Survey to examine the impact of the 2021 eligibility criteria on racial disparities by factors such as education, poverty, employment history, and insurance status. We also examined preventive care use and reasons for delaying medical care. RESULTS When comparing Black individuals and non-Hispanic White individuals, our analyses show significant differences in who would be eligible for LCS: Those who do not have a high school diploma (28.7% vs. 17.0%, p = 0.002), are in poverty (26.2% vs. 14.9%, p < 0.001), and have not worked in the past 12 months (66.5% vs. 53.9%, p = 0.009). Further, our analyses also show that more Black individuals delayed medical care due to not having transportation (11.1% vs. 3.6%, p < 0.001) compared to non-Hispanic White individuals. CONCLUSIONS Our results suggest that despite increasing the number of Black individuals who are eligible for LCS, the 2021 USPSTF recommendation highlights ongoing socioeconomic disparities that need to be addressed to ensure equitable access.
Collapse
Affiliation(s)
- Kristin G Maki
- Department of Health Services Research, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Rajesh Talluri
- Department of Data Science, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Iakovos Toumazis
- Department of Health Services Research, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sanjay Shete
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Division of Cancer Prevention and Population Sciences, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Robert J Volk
- Department of Health Services Research, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| |
Collapse
|
6
|
Gupta A, Omeogu CH, Islam JY, Joshi AR, Akinyemiju TF. Association of area-level socioeconomic status and non-small cell lung cancer stage by race/ethnicity and health care-level factors: Analysis of the National Cancer Database. Cancer 2022; 128:3099-3108. [PMID: 35719098 PMCID: PMC10111396 DOI: 10.1002/cncr.34327] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 10/27/2021] [Accepted: 11/09/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND This study examined whether the association of socioeconomic status (SES) and non-small cell lung cancer (NSCLC) stage varied by race/ethnicity and health care access measures. METHODS This study used data from the 2004-2016 National Cancer Database for patients aged 18-89 years who had been diagnosed with Stage 0-IV NSCLC. Adjusted odds ratios (aORs) with 95% confidence intervals (CIs) were calculated for the associations of area-level SES with an advanced stage at diagnosis via multilevel, multivariable logistic regression. The stage at diagnosis was dichotomized into early (0-II) and advanced (III-IV) stages, and area-level SES was categorized on the basis of the patient's zip code level: (1) the proportion of adults aged ≥25 years without a high school degree and (2) the median household income. The models were stratified by race/ethnicity (non-Hispanic [NH] White, NH Black, Hispanic, Asian, American Indian/Alaskan Native, and Native Hawaiian/Pacific Islander), insurance status (none, government, and private), and health care facility type (community, comprehensive community, academic/research, and integrated network). RESULTS The study population included 1,329,972 patients. Although only 17% of the NH White patients were in the lowest income quartile, 50% of the NH Black patients were in this group. Lower area-level education and income were associated with higher odds of an advanced-stage diagnosis (aOR for education, 1.12; 95% CI, 1.10-1.13; aOR for income, 1.13; 95% CI, 1.11-1.14). These associations persisted among NH White, NH Black, Hispanic, and Asian patients; among those with government and private insurance (but not the uninsured); and among those treated at each facility type. CONCLUSIONS Area-level income and education are strongly associated with an advanced NSCLC diagnosis regardless of the facility type and among those with government and private insurance.
Collapse
Affiliation(s)
- Anjali Gupta
- Trinity College of Arts and Sciences, Duke University, Durham, NC, USA
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Chioma H. Omeogu
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Jessica Y. Islam
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA
- Cancer Epidemiology Program, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Ashwini R. Joshi
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Tomi F. Akinyemiju
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA
| |
Collapse
|
7
|
Siwachat S, Lertprasertsuke N, Tanatip N, Kongkarnka S, Euathrongchit J, Wannasopha Y, Suksombooncharoen T, Chewaskulyong B, Lieberman-Cribbin W, Taioli E, Saeteng S, Tantraworasin A. Effect of Insurance Type on Stage at Presentation, Surgical Approach, Tumor Recurrence and Cancer-Specific Survival in Resectable Non-Small Lung Cancer Patients. Risk Manag Healthc Policy 2020; 13:559-569. [PMID: 32607024 PMCID: PMC7297449 DOI: 10.2147/rmhp.s244344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/24/2020] [Indexed: 12/25/2022] Open
Abstract
Purpose The aim of this study was to identify the association between Thailand’s insurance types and stage at presentation, surgical approach, tumor recurrence and cancer-specific survival in resectable non-small cell lung cancer (NSCLC) patients in northern Thailand. Patients and Methods Medical records of patients with NSCLC who underwent pulmonary resection at Chiang Mai University Hospital from January 2007 through December 2015 were retrospectively reviewed. Patients were divided into two groups: patients with the Universal Coverage Scheme (UCS) or Social Security Scheme (SSS) and patients with the Civil Servant Medical Benefit Scheme (CSMBS) or private insurance (PI). Patient characteristics were assessed. The primary outcome was cancer-specific survival while the secondary outcome was tumor recurrence. Cox’s regression and matching propensity score analysis was used to analyze data. Results This study included 583 patients: 344 with UCS or SSS and 239 with CSMBS or PI. Patients with UCS or SSS were more likely to be active smokers, have a lower percent predicted FEV1, present with higher-stage tumors and worse differentiated tumors, present with tumor necrosis, and undergo an open surgical approach than those with CSMBS or PI. At multivariable analysis of all patients cohort, there were no significant differences in terms of early stage at presentation (adjusted odds ratio (ORadj) = 0.94, 95% confidence interval (CI) = 0.65–1.37), undergoing lobectomy (ORadj = 0.59, 95% CI = 0.24–1.46), and recurrent-free survival (adjusted hazard ratio (HRadj) =1.20, 95% CI = 0.88–1.65) between groups (UCS/SSS versus CSMBS/PI). However, patients with UCS or SSS had shorter cancer-specific survival (HRadj = 1.61, 95% CI = 1.22–2.15). The results from the propensity score matched patient cohort were not different from those analyses on the full patient cohort. Conclusion Thai insurance types have an effect on cancer-specific survival. The Thai government should recognize the importance of these differences, and further multi-center studies with a larger sample size are warranted to confirm this result.
Collapse
Affiliation(s)
- Sophon Siwachat
- Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nirush Lertprasertsuke
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Narumon Tanatip
- Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sarawut Kongkarnka
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Juntima Euathrongchit
- Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Yutthaphan Wannasopha
- Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Busayamas Chewaskulyong
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Wil Lieberman-Cribbin
- Department of Population Health Science and Policy, Institute for Translational Epidemiology, Icahn Medical School at Mount Sinai, New York, NY, USA
| | - Emanuela Taioli
- Department of Population Health Science and Policy, Institute for Translational Epidemiology, Icahn Medical School at Mount Sinai, New York, NY, USA
| | - Somcharoen Saeteng
- Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Apichat Tantraworasin
- Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,Pharmacoepidemiology and Statistics Research Center (PESRC), Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand.,Clinical Epidemiology and Clinical Statistic Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| |
Collapse
|
8
|
Borondy Kitts AK. The Patient Perspective on Lung Cancer Screening and Health Disparities. J Am Coll Radiol 2019; 16:601-606. [PMID: 30947894 DOI: 10.1016/j.jacr.2018.12.028] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 12/19/2018] [Indexed: 12/12/2022]
Abstract
Lung cancer screening is just starting to be implemented across the United States. Challenges to screening include access to care, awareness of the option for screening, stigma and implicit bias that are due to stigmatization of smoking, stigma of race, nihilism with lung cancer diagnosis viewed as a "death sentence," shared decision making, and underestimation of lung cancer risk. African Americans (AA) have the highest lung cancer mortality rate in the United States despite similar smoking rates as whites. AAs are diagnosed at a later stage, and there is a greater likelihood they will refuse treatment options when diagnosed. Additionally, fewer AAs were found to meet lung cancer screening eligibility criteria compared with whites because of lower tobacco exposure and younger age at time of diagnosis. Outreach and access for lung cancer screening in the AA community and other subpopulations at risk are critical to avoid further increasing disparities in lung cancer morbidity and mortality as lung cancer screening is implemented across the United States. The path forward requires implementing outreach programs and providing lung cancer screening in underserved communities at high risk for lung cancer; consideration of using National Comprehensive Cancer Network guidelines for screening selection criteria, including risk model screening selection; and developing interventions to address stigma, clinician implicit bias, and nihilism.
Collapse
|
9
|
Racial differences in brain cancer characteristics and survival: an analysis of SEER data. Cancer Causes Control 2019; 30:1283-1291. [PMID: 31641915 DOI: 10.1007/s10552-019-01239-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 10/03/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE Racial disparity with shorter survival for Blacks than Whites is well known for many cancers. However, for brain cancer, some national cancer registry studies have shown better survival among Blacks compared to Whites. This study aimed to systematically investigate whether Blacks and Whites differ in survival and also in tumor characteristics and treatment for neuroepithelial brain tumors. METHODS The National Cancer Institute's Surveillance Epidemiology and End Results (SEER) database was used to identify non-Hispanic White and Black patients diagnosed with malignant, histologically confirmed neuroepithelial brain cancer from 2004 through 2015. Racial differences in brain cancer survival were compared using Kaplan-Meier curve and Cox proportional hazard models. The associations of race with tumor and treatment characteristics (location, size, grade, surgical type) were examined using multinomial logistic regression. RESULTS After adjusting for demographic, tumor, and treatment factors, there were no significant differences in survival for non-Hispanic Blacks compared to non-Hispanic Whites [hazard ratio (HR) 1.05, 95% confidence interval (CI) 0.99-1.10]. Non-Hispanic Blacks had higher odds of being diagnosed with tumors of unknown grade [odds ratio (OR) 1.16, 95% CI 1.05-1.29], unknown size (OR 1.14, 95% CI 1.01-1.29), infratentorial (OR 1.12, 95% CI 1.01-1.24) or overlapping area (OR 1.39, 95% CI 1.14-1.70), and lower odds of having a total surgical resection (OR 0.83, 95% CI 0.74-0.93). CONCLUSION Non-Hispanic Blacks do not exhibit longer brain cancer-specific survival than non-Hispanic Whites. They were more likely to have tumors of unknown size or grade and less likely to receive total surgical resection, which may result from racial differences in access to and use of healthcare.
Collapse
|
10
|
Jones CC, Mercaldo SF, Blume JD, Wenzlaff AS, Schwartz AG, Chen H, Deppen SA, Bush WS, Crawford DC, Chanock SJ, Blot WJ, Grogan EL, Aldrich MC. Racial Disparities in Lung Cancer Survival: The Contribution of Stage, Treatment, and Ancestry. J Thorac Oncol 2018; 13:1464-1473. [PMID: 29885480 PMCID: PMC6153049 DOI: 10.1016/j.jtho.2018.05.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/12/2018] [Accepted: 05/26/2018] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Lung cancer is a leading cause of cancer-related death worldwide. Racial disparities in lung cancer survival exist between blacks and whites, yet they are limited by categorical definitions of race. We sought to examine the impact of African ancestry on overall survival among blacks and whites with NSCLC cases. METHODS Incident cases of NSCLC in blacks and whites from the prospective Southern Community Cohort Study (N = 425) were identified through linkage with state cancer registries in 12 southern states. Vital status was determined by linkage with the National Death Index and Social Security Administration. We evaluated the impact of African ancestry (as estimated by using genome-wide ancestry-informative markers) on overall survival by calculating the time-dependent area under the curve (AUC) for Cox proportional hazards models, adjusting for relevant covariates such as stage and treatment. We replicated our findings in an independent population of NSCLC cases in blacks. RESULTS Global African ancestry was not significantly associated with overall survival among NSCLC cases. There was no change in model performance when Cox proportional hazards models with and without African ancestry were compared (AUC = 0.79 for each model). Removal of stage and treatment reduced the average time-dependent AUC from 0.79 to 0.65. Similar findings were observed in our replication study. CONCLUSIONS Stage and treatment are more important predictors of survival than African ancestry is. These findings suggest that racial disparities in lung cancer survival may disappear with similar early detection efforts for blacks and whites.
Collapse
Affiliation(s)
- Carissa C Jones
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Jeffrey D Blume
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Angela S Wenzlaff
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Heidi Chen
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Stephen A Deppen
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Tennessee Valley Health System Veterans Affairs, Nashville, Tennessee
| | - William S Bush
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Dana C Crawford
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - William J Blot
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Eric L Grogan
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Tennessee Valley Health System Veterans Affairs, Nashville, Tennessee
| | - Melinda C Aldrich
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee; Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.
| |
Collapse
|
11
|
Tiu AC, Potdar R, Djibo DA, Masab M, Dourado C. Clinical outcomes of African American patients with advanced or metastatic non-small cell lung cancer on Nivolumab in a single community-based cancer center. Med Oncol 2018; 35:109. [PMID: 29915891 DOI: 10.1007/s12032-018-1171-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 06/13/2018] [Indexed: 12/19/2022]
Abstract
African Americans (AA) have the highest incidence and mortality rates with lung cancer. They are diagnosed at an earlier age with more advanced disease. Programmed cell death protein-1 inhibitor, Nivolumab, was approved as a second-line agent after failure of platinum-based therapy for advanced or metastatic non-small cell lung cancer (NSCLC). The original studies leading to the approval of Nivolumab had insufficient AA patients, thus there is still inadequate knowledge on treatment outcomes among AA patients. Our primary study endpoints were to determine the median overall survival, 1-year overall survival rate, median progression-free survival, and 1-year progression-free survival rate of patients with advanced or metastatic non-small cell lung cancer on Nivolumab. Our secondary study endpoints were to determine the overall tumor response rate, median time to response, median duration of response, and incidence of treatment-related adverse events of grade 3 or 4. In this retrospective study, we reviewed the charts of 38 patients, 29 of which were AA, with advanced or metastatic NSCLC who received Nivolumab from March 1, 2015 until November 30, 2017 from a single community-based cancer center and compared our results with historical data. Adenocarcinoma was the most common histology (71%) among all patients. Seven (18%) continued to use Nivolumab while 21 (55%) discontinued the treatment mainly due to progression of the disease. The median overall survival was 21.4 months (95% CI 13.5-27.4) and 17.6 months (95% CI 11.5-27.6) for all the patients and AA, respectively. Both have statistically significant difference (P < 0.001) compared to the historical studies of Borghaei et al. and Brahmer et al. At 1 year, the overall survival rate was 73% (95% CI 50-86) and 66% (95% CI 40-82) for all patients and AA, respectively. The median progression-free survival was also statistically significant (P < 0.001) between all the patients 6.3 months (95% CI 2.8-8), AA 6.0 months (95% CI 2.3-8.0), and the said historical studies. The 1-year progression-free survival rate was 23% (95% CI 10-39) and 28% (95% CI 12-47) for all patients and AA, respectively. Overall tumor response rate which includes complete and partial responses was 21% (95% CI 10-37) and 24% (95% CI 10-43) for all patients and AA, respectively. The median time to response was 3 and 2.8 months for all patients and AA, respectively. The median duration of response was 3.8 and 4.0 months for all patients and AA, respectively. Treatment-related adverse events of grade 3 or 4 were reported in 8 and 10% in all patients and AA, respectively, similar to the rates previously shown. AA patients with advanced or metastatic NSCLC on Nivolumab had increased overall survival and progression-free survival with similar grade 3 or 4 treatment-related adverse events. Providing adequate access to immunotherapy is indispensable to maximize survival benefit for AA patients.
Collapse
Affiliation(s)
- Andrew C Tiu
- Department of Medicine, Einstein Medical Center, 5501 Old York Road, Philadelphia, PA, 19141, USA.
| | - Rashmika Potdar
- Division of Hematology and Medical Oncology, Einstein Medical Center, Philadelphia, PA, USA
| | - Djeneba Audrey Djibo
- Department of Medicine, Einstein Medical Center, 5501 Old York Road, Philadelphia, PA, 19141, USA
| | - Muhammad Masab
- Department of Medicine, Einstein Medical Center, 5501 Old York Road, Philadelphia, PA, 19141, USA
| | - Claudia Dourado
- Division of Hematology and Medical Oncology, Einstein Medical Center, Philadelphia, PA, USA
| |
Collapse
|
12
|
Tantraworasin A, Taioli E, Liu B, Flores RM, Kaufman AJ. The influence of insurance type on stage at presentation, treatment, and survival between Asian American and non-Hispanic White lung cancer patients. Cancer Med 2018; 7:1612-1629. [PMID: 29575647 PMCID: PMC5943464 DOI: 10.1002/cam4.1331] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/08/2017] [Accepted: 12/15/2017] [Indexed: 12/19/2022] Open
Abstract
The effect of insurance type on lung cancer diagnosis, treatment, and survival in Asian patients living in the United States is still under debate. We have analyzed this issue using the Surveillance, Epidemiology, and End Results database. There were 102,733 lung cancer patients age 18–64 years diagnosed between 2007 and 2013. Multilevel regression analysis was performed to identify the association between insurance types, stage at diagnosis, treatment modalities, and overall mortality in Asian and non‐Hispanic White (NHW) patients. Clinical characteristics were significantly different between Asian and NHW patients, except for gender. Asian patients were more likely to present with advanced disease than NHW patients (ORadj = 1.12, 95% CI = 1.06–1.19). Asian patients with non‐Medicaid insurance underwent lobectomy more than NHW patients with Medicaid or uninsured; were more likely to undergo mediastinal lymph node evaluation (MLNE) (ORadj = 1.98, 95% CI = 1.72–2.28) and cancer‐directed surgery and/or radiation therapy (ORadj = 1.41, 95% CI = 1.20–1.65). Asian patients with non‐Medicaid insurance had the best overall survival. Uninsured or Medicaid‐covered Asian patients were more likely to be diagnosed with advanced disease, less likely to undergo MLNE and cancer‐directed treatments, and had shorter overall survival than their NHW counterpart.
Collapse
Affiliation(s)
- Apichat Tantraworasin
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1023 Annenberg Building, 7-56, New York City, 10029, New York.,Department of Surgery, Faculty of Medicine, Chiang Mai University, 110 Intawaroros Road, Chiang Mai, 50200, Thailand.,Pharmacoepidemiology and Statistics Research Center (PESRC), Faculty of Pharmacy, Chiang Mai University, 239 Suthep Road, Chiang Mai, 50200, Thailand
| | - Emanuela Taioli
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1023 Annenberg Building, 7-56, New York City, 10029, New York.,Department of Population Health Science and Policy and Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1133, New York City, 10029, New York
| | - Bian Liu
- Department of Population Health Science and Policy and Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1133, New York City, 10029, New York
| | - Raja M Flores
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1023 Annenberg Building, 7-56, New York City, 10029, New York
| | - Andrew J Kaufman
- Department of Thoracic Surgery, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1023 Annenberg Building, 7-56, New York City, 10029, New York
| |
Collapse
|
13
|
Jones CC, Bush WS, Crawford DC, Wenzlaff AS, Schwartz AG, Wiencke JK, Wrensch MR, Blot WJ, Chanock SJ, Grogan EL, Aldrich MC. Germline Genetic Variants and Lung Cancer Survival in African Americans. Cancer Epidemiol Biomarkers Prev 2017; 26:1288-1295. [PMID: 28619829 DOI: 10.1158/1055-9965.epi-16-0998] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/14/2017] [Accepted: 05/17/2017] [Indexed: 11/16/2022] Open
Abstract
Background: African Americans have the highest lung cancer mortality in the United States. Genome-wide association studies (GWASs) of germline variants influencing lung cancer survival have not yet been conducted with African Americans. We examined five previously reported GWAS catalog variants and explored additional genome-wide associations among African American lung cancer cases.Methods: Incident non-small cell lung cancer cases (N = 286) in the Southern Community Cohort Study were genotyped on the Illumina HumanExome BeadChip. We used Cox proportional hazards models to estimate HRs and 95% confidence intervals (CIs) for overall mortality. Two independent African American studies (N = 316 and 298) were used for replication.Results: One previously reported variant, rs1878022 on 12q23.3, was significantly associated with mortality (HR = 0.70; 95% CI: 0.54-0.92). Replication findings were in the same direction, although attenuated (HR = 0.87 and 0.94). Meta-analysis had a HR of 0.83 (95% CI, 0.71-0.97). Analysis of common variants identified an association between chromosome 6q21.33 and mortality (HR = 0.46; 95% CI, 0.33-0.66).Conclusions: We identified an association between rs1878022 in CMKLR1 and lung cancer survival. However, our results in African Americans have a different direction of effect compared with a prior study in European Americans, suggesting a different genetic architecture or presence of gene-environment interactions. We also identified variants on chromosome 6 within the gene-rich HLA region, which has been previously implicated in lung cancer risk and survival.Impact: We found evidence that inherited genetic risk factors influence lung cancer survival in African Americans. Replication in additional populations is necessary to confirm potential genetic differences in lung cancer survival across populations. Cancer Epidemiol Biomarkers Prev; 26(8); 1288-95. ©2017 AACR.
Collapse
Affiliation(s)
- Carissa C Jones
- Department of Thoracic Surgery, Vanderbilt University Medical School, Nashville, Tennessee.,Vanderbilt Genetics Institute, Vanderbilt University Medical School, Nashville, Tennessee
| | - William S Bush
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Dana C Crawford
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Angela S Wenzlaff
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - John K Wiencke
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Margaret R Wrensch
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California.,Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California.,Institute of Human Genetics, University of California San Francisco, San Francisco, California
| | - William J Blot
- Division of Epidemiology, Vanderbilt University Medical School, Nashville, Tennessee.,International Epidemiology Institute, Rockville, Maryland
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Eric L Grogan
- Department of Thoracic Surgery, Vanderbilt University Medical School, Nashville, Tennessee.,Tennessee Valley Health System Veterans Affairs, Nashville, Tennessee
| | - Melinda C Aldrich
- Department of Thoracic Surgery, Vanderbilt University Medical School, Nashville, Tennessee. .,Vanderbilt Genetics Institute, Vanderbilt University Medical School, Nashville, Tennessee.,Division of Epidemiology, Vanderbilt University Medical School, Nashville, Tennessee
| |
Collapse
|
14
|
Adams SV, Burnett-Hartman AN, Karnopp A, Bansal A, Cohen SA, Warren-Mears V, Ramsey SD. Cancer Stage in American Indians and Alaska Natives Enrolled in Medicaid. Am J Prev Med 2016; 51:368-72. [PMID: 27020318 PMCID: PMC5154762 DOI: 10.1016/j.amepre.2016.02.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 01/26/2016] [Accepted: 02/08/2016] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Nationally, a greater proportion of American Indians and Alaska Natives (AI/ANs) are diagnosed with advanced-stage cancers compared with non-Hispanic whites. The reasons for observed differences in stage at diagnosis between AI/ANs and non-Hispanic whites remain unclear. METHODS Medicaid, Indian Health Service Care Systems, and state cancer registry data for California, Oregon, and Washington (2001-2008, analyzed in 2014-2015) were linked to identify AI/ANs and non-Hispanic whites diagnosed with invasive breast, cervical, colorectal, lung, or prostate cancer. Logistic regression was used to estimate ORs and 95% CIs for distant disease versus local or regional disease, in AI/ANs compared with non-Hispanic white case patients. RESULTS A similar proportion of AI/AN (31.2%) and non-Hispanic white (35.5%) patients were diagnosed with distant-stage cancer in this population (AOR=1.03, 95% CI=0.88, 1.20). No significant differences in stage at diagnosis were found for any individual cancer site. Among AI/ANs, Indian Health Service Care Systems eligibility was not associated with stage at diagnosis. CONCLUSIONS In contrast to the general population of the U.S., among Medicaid enrollees, AI/AN race is not associated with later stage at diagnosis. Cancer survival disparities associated with AI/AN race that have been observed in the broader population may be driven by factors associated with income and health insurance that are also associated with race, as income and insurance status are more homogenous within the Medicaid population than within the broader population.
Collapse
Affiliation(s)
- Scott V Adams
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.
| | - Andrea N Burnett-Hartman
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington; Kaiser Permanente Colorado Institute for Health Research, Denver, Colorado
| | - Andrew Karnopp
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Aasthaa Bansal
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington; Department of Pharmacy, University of Washington, Seattle, Washington
| | - Stacey A Cohen
- Division of Oncology, University of Washington, Seattle, Washington; Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Scott D Ramsey
- Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| |
Collapse
|
15
|
Li S, Zhang W, Fan J, Lai Y, Che G. Clinicopathological and prognostic significance of heat shock protein 27 (HSP27) expression in non-small cell lung cancer: a systematic review and meta-analysis. SPRINGERPLUS 2016; 5:1165. [PMID: 27512624 PMCID: PMC4960090 DOI: 10.1186/s40064-016-2827-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 07/14/2016] [Indexed: 02/05/2023]
Abstract
Numbers of clinical and experimental investigations have provided increasing evidences to demonstrate that heat shock protein 27 (HSP27) is a qualified predictor for many cancers. However, no consensus has been reached on its clinicopathological and prognostic significance in patients with non-small cell lung cancer (NSCLC). Therefore, we performed this systematic meta-analysis to help addressing this issue. PubMed, EMBASE, the Web of Science and China National Knowledge Infrastructure were searched for full-text literatures met out eligibility criteria. We determined the odds ratio (OR) and hazard ratio (HR) as the appropriate summarized statistics for assessments of clinicopathological and prognostic roles of HSP27, respectively. Q-test and I(2)-statistic were used to evaluate the level of heterogeneity. Sensitivity analysis was conducted to examine the stability of overall estimates. Potential publication bias was detected by Begg's test and Egger's test. Finally, ten articles were identified to be included into our meta-analysis. The pooled analyses suggested that HSP27 expression was significantly associated with the unfavorable conditions for differentiation degree, lymphatic metastasis, clinical stage, squamous cell carcinoma and tumor size. However, HSP27 expression had no significant relationship to gender, age and smoking status. Meanwhile, pooled HRs indicated that HSP27 expression could be a predictor for a lower 5-year overall survival (OS) rate (HR: 1.832; 95 % CI 1.322-2.538; P < 0.001) but not for 1-year OS of NSCLC (HR: 0.885; 95 % CI 0.140-5.599; P = 0.896). In conclusion, our meta-analysis demonstrates that HSP27 expression may be a strong biomarker to predict both the poor clinicopathological and prognostic characteristics in patients with NSCLC.
Collapse
Affiliation(s)
- Shuangjiang Li
- Department of General Thoracic Surgery, West China Hospital, Sichuan University, Guoxue Alley No. 37, Chengdu, 610041 China
| | - Wenbiao Zhang
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041 China
| | - Jun Fan
- Department of General Thoracic Surgery, West China Hospital, Sichuan University, Guoxue Alley No. 37, Chengdu, 610041 China
| | - Yutian Lai
- Department of General Thoracic Surgery, West China Hospital, Sichuan University, Guoxue Alley No. 37, Chengdu, 610041 China
| | - Guowei Che
- Department of General Thoracic Surgery, West China Hospital, Sichuan University, Guoxue Alley No. 37, Chengdu, 610041 China
| |
Collapse
|
16
|
Hunt B, Balachandran B. Black:White disparities in lung cancer mortality in the 50 largest cities in the United States. Cancer Epidemiol 2015; 39:908-16. [PMID: 26520620 DOI: 10.1016/j.canep.2015.10.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/13/2015] [Accepted: 10/01/2015] [Indexed: 12/20/2022]
Abstract
INTRODUCTION This paper presents race-specific lung cancer mortality rates and the corresponding rate ratios for the 50 largest U.S. cities for the 5-year intervals 1990-1994 and 2005-2009. METHODS The 50 largest cities in the U.S. were the units of analysis. Numerator data were abstracted from national death files where the cause was malignant neoplasms of trachea, bronchus, and lung (lung cancer) (ICD-9=162 and ICD-10=C33-C34). Population-based denominators were obtained from the U.S. Census Bureau for 1990, 2000, and 2010. To measure the racial disparity, we calculated non-Hispanic Black:non-Hispanic White rate ratios (RRs) and confidence intervals for each 5-year period. We calculated correlation coefficients for 12 ecological variables and the RRs. RESULTS At the final time point (2005-2009), 15RRs were less than 1, but only 8 significantly so while 29RRs were greater than 1, 16 of them significantly so. Of the 45 cities included in the analysis, 21 saw an increase in the Black:White RR between the first and second time points. Measures of socioeconomic status (SES) and inequalities therein were found to be associated with the RRs. CONCLUSION This analysis revealed large disparities in Black:White lung cancer mortality in the U.S. and many of its largest cities during the period 1990-2009. The data demonstrate considerable variation in the degree of disparity across cities, even among cities within the same state. These data can inform and motivate local health officials to implement targeted prevention and treatment strategies where they are needed most, ultimately contributing to a reduction in the disparity in lung cancer mortality rates.
Collapse
Affiliation(s)
- Bijou Hunt
- Sinai Urban Health Institute, Sinai Health System, 1500 S. California Ave, Room K443, Chicago, IL 60608-1797, USA.
| | - Banujan Balachandran
- Rosalind Franklin University, Chicago Medical School, North Chicago, IL 60064, USA
| |
Collapse
|