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Lofters AK, Sammott SA, Swayze S, Bender JL, Alibhai SMH, Henry A, Noel K, Datta G. Stage of diagnosis and survival for prostate cancer among immigrant men in Ontario, Canada. Cancer Epidemiol 2024; 90:102562. [PMID: 38513543 DOI: 10.1016/j.canep.2024.102562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024]
Abstract
INTRODUCTION We previously identified specific immigrant groups (West African and Caribbean) with increased incidence of prostate cancer in Ontario, Canada. In this population-level retrospective cohort study, we used administrative databases to compare stage of diagnosis, 5-year overall survival and prostate cancer-specific survival for immigrants versus long-term residents of Ontario. METHODS We linked several provincial-level databases available at ICES, an independent, non-profit research institute. We included all male Ontario residents 20-105 years of age who had an incident prostate cancer diagnosis date between March 31, 2008 and March 31, 2017, stratified into immigrants vs. long-term residents. We used multivariable logistic regression to determine the odds of early (stage I-II) vs. late (III-IV) stage of diagnosis, adjusting for age, co-morbidities, neighbourhood income and continuity of care. We produced Kaplan-Meier curves for 5-year overall survival and for 5-year prostate cancer-specific survival. RESULTS Compared to long-term residents, men from West Africa (adjusted odds ratio 1.66 [95% CI 1.16-2.38], East Africa (AOR 1.54 [95% CI 1.02-2.33]) and the Caribbean (AOR 1.22 [95% CI 1.01-1.47]) had a diagnostic stage advantage, and men from South Asia were most likely to be diagnosed at a late stage. In both unadjusted and adjusted analyses, overall and prostate cancer-specific survival were higher for immigrants than long-term residents. The highest five-year overall survival was seen for men from Sub-Saharan Africa and the Caribbean, and the lowest was seen for South Asian men, where 11.7% died within five years of diagnosis. CONCLUSION Immigrant men in Ontario with prostate cancer are more likely to be diagnosed at an early stage and to survive for 5 years than long-term residents. Among immigrant men, men from the Caribbean and Sub-Saharan Africa have the greatest stage and survival advantage and South Asian men the least. Differences in awareness, diagnostic suspicion, genetic predisposition, and social factors may play a role in these findings.
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Affiliation(s)
- Aisha K Lofters
- Peter Gilgan Centre for Women's Cancers, Women's College Hospital, Toronto, Canada; Department of Family & Community Medicine, University of Toronto, Toronto, Canada; Women's College Hospital Research Institute, Toronto, Canada; ICES, Toronto, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
| | - Stacie-Ann Sammott
- Renaissance School of Medicine at Stony Brook University, Stony Brook, New York, USA
| | | | - Jacqueline L Bender
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada; Department of Supportive Care, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Shabbir M H Alibhai
- Department of Supportive Care, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada; Department of Medicine, University Health Network, Toronto, Canada
| | | | | | - Geetanjali Datta
- Cedars-Sinai Medical Center, Department of Biomedical Sciences, Los Angeles, USA
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Li V, Alibhai SMH, Noel K, Fazelzad R, Haase K, Mariano C, Durbano S, Sattar S, Newton L, Dawe D, Bell JA, Hsu T, Wong ST, Lofters A, Bender JL, Manthorne J, Puts MTE. Access to cancer clinical trials for racialised older adults: an equity-focused rapid scoping review protocol. BMJ Open 2024; 14:e074191. [PMID: 38245013 PMCID: PMC10807002 DOI: 10.1136/bmjopen-2023-074191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 01/09/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND The intersection of race and older age compounds existing health disparities experienced by historically marginalised communities. Therefore, racialised older adults with cancer are more disadvantaged in their access to cancer clinical trials compared with age-matched counterparts. To determine what has already been published in this area, the rapid scoping review question are: what are the barriers, facilitators and potential solutions for enhancing access to cancer clinical trials among racialised older adults? METHODS We will use a rapid scoping review methodology in which we follow the six-step framework of Arksey and O'Malley, including a systematic search of the literature with abstract and full-text screening to be conducted by two independent reviewers, data abstraction by one reviewer and verification by a second reviewer using an Excel data abstraction sheet. Articles focusing on persons aged 18 and over who identify as a racialised person with cancer, that describe therapies/therapeutic interventions/prevention/outcomes related to barriers, facilitators and solutions to enhancing access to and equity in cancer clinical trials will be eligible for inclusion in this rapid scoping review. ETHICS AND DISSEMINATION All data will be extracted from published literature. Hence, ethical approval and patient informed consent are not required. The findings of the scoping review will be submitted for publication in a peer-reviewed journal and presentation at international conferences.
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Affiliation(s)
- Vivian Li
- Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
| | - Shabbir M H Alibhai
- Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Faculty of Medicine and Dalla Lana School of Public Health and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | | | - Rouhi Fazelzad
- Library and Information Services, Princess Margaret Hospital Cancer Centre, Toronto, Ontario, Canada
| | - Kristin Haase
- School of Nursing, University of British Columbia, Vancouver, British Columbia, Canada
| | - Caroline Mariano
- BC Cancer Agency Vancouver Centre, Vancouver, British Columbia, Canada
| | - Sara Durbano
- Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - Schroder Sattar
- College of Nursing, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Lorelei Newton
- School of Nursing, University of Victoria, Victoria, British Columbia, Canada
| | - David Dawe
- CancerCare Manitoba Research Institute, CancerCare Manitoba, Winnipeg, Manitoba, Canada
| | - Jennifer A Bell
- Clinical and Organizational Ethics, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Tina Hsu
- Department of Oncology, The Ottawa Hospital Cancer Centre, Ottawa, Ontario, Canada
| | - Sabrina T Wong
- Division of Intramural Research, National Institute of Nursing Research, Bethesda, Maryland, USA
| | - Aisha Lofters
- Peter Gilgan Centre for Women's Cancers, Women's College Hospital, Toronto, Ontario, Canada
| | - Jacqueline L Bender
- Department of Supportive Care, Princess Margaret Hospital Cancer Centre, Toronto, Ontario, Canada
- Dalla Lana School of Public Health and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | | | - Martine T E Puts
- Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
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Butler SJ, Louie AV, Sutradhar R, Paszat L, Brooks D, Gershon AS. Association between COPD and Stage of Lung Cancer Diagnosis: A Population-Based Study. Curr Oncol 2023; 30:6397-6410. [PMID: 37504331 PMCID: PMC10377848 DOI: 10.3390/curroncol30070471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/26/2023] [Accepted: 07/01/2023] [Indexed: 07/29/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is associated with an increased risk of lung cancer; however, the association between COPD and stage of lung cancer diagnosis is unclear. We conducted a population-based cross-sectional analysis of lung cancer patients (2008-2020) in Ontario, Canada. Using estimated propensity scores and inverse probability weighting, logistic regression models were developed to assess the association between COPD and lung cancer stage at diagnosis (early: I/II, advanced: III/IV), accounting for prior chest imaging. We further examined associations in subgroups with previously diagnosed and undiagnosed COPD. Over half (55%) of all lung cancer patients in Ontario had coexisting COPD (previously diagnosed: 45%, undiagnosed at time of cancer diagnosis: 10%). Compared to people without COPD, people with COPD had 30% lower odds of being diagnosed with lung cancer in the advanced stages (OR = 0.70, 95% CI: 0.68 to 0.72). Prior chest imaging only slightly attenuated this association (OR = 0.77, 95% CI: 0.75 to 0.80). The association with lower odds of advanced-stage diagnosis remained, regardless of whether COPD was previously diagnosed (OR = 0.68, 95% CI: 0.66 to 0.70) or undiagnosed (OR = 0.77, 95% CI: 0.73 to 0.82). Although most lung cancers are detected in the advanced stages, underlying COPD was associated with early-stage detection. Lung cancer diagnostics may benefit from enhanced partnership with COPD healthcare providers.
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Affiliation(s)
- Stacey J Butler
- Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Alexander V Louie
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Rinku Sutradhar
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada
| | - Lawrence Paszat
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
| | - Dina Brooks
- School of Rehabilitation Sciences, McMaster University, Hamilton, ON L8S 1C7, Canada
| | - Andrea S Gershon
- Institute of Medical Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada
- ICES, Toronto, ON M4N 3M5, Canada
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
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