Geographic and Socioeconomic Disparity of Gastric Cancer Patients in Canada

Cattelan, Leila; Ghazawi, Feras M.; Le, Michelle; Lagacé, François; Rahme, Elham; Zubarev, Andrei; Sasseville, Denis; Litvinov, Ivan V.; Waschke, Kevin; Netchiporouk, Elena

doi:10.3390/curroncol28030190

Cited by 7 publications

(11 citation statements)

References 61 publications

(76 reference statements)

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“…A total of 16 studies were conducted in Canada, whereas the remaining three studies were conducted in both the United States and Canada 32–34 . Nine studies specified the province studied: six presented data from Ontario, 35–41 two from British Columbia, 37,41 two from Quebec, 41,42 and one from Alberta 43 . The studies were published between 2007 and 2021, with seven being published in the past 5 years 35–37,39,42,44,45 …”

Section: Resultsmentioning

confidence: 99%

“…43 The studies were published between 2007 and 2021, with seven being published in the past 5 years. [35][36][37]39,42,44,45…”

Section: Characteristics Of Studiesmentioning

confidence: 99%

“…32,45,49 The remainder of the studies assessed population-wide data that contained information concerning Black individuals. 36,39,40,42,43,50 Results on general aspects of cancer (not specified/ various)…”

Section: Targeted Populationsmentioning

confidence: 99%

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Incidence, factors, and disparities related to cancer among Black individuals in Canada: A scoping review

Cénat

Dromer

Darius

et al. 2022

Cancer

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Background In Canada, two of five individuals will be diagnosed with cancer in their lifetime and one in four will die from this disease. Given the disparities observed in health research among Black individuals, we conducted a scoping review to analyze the state of cancer research in Canadian Black communities regarding prevalence, incidence, screening, mortality, and related factors to observe advances and identify gaps and disparities. Methods A comprehensive search strategy was developed and executed in December 2021 across 10 databases (e.g., Embase). Of 3451 studies generated by the search, 19 were retained for extraction and included in this study. Results Studies were focused on a variety of cancer types among Black individuals including anal, breast, cervical, colorectal, gastric, lung, and prostate cancers. They included data on incidence, stage of cancer at diagnosis, type of care received, diagnostic interval length, and screening. A few studies also demonstrated racial disparities among Black individuals. This research reveals disparities in screening, incidence, and quality of care among Black individuals in Canada. Conclusions Given the gaps observed in cancer studies among Black individuals, federal and provincial governments and universities should consider creating special funds to generate research on this important health issue. Plain language summary Important gaps were observed on research on cancer among Black communities in Canada. Studies included in the scoping review highlights disparities in screening, incidence, and quality of care among Black individuals in Canada.

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Section: Resultsmentioning

confidence: 99%

“…43 The studies were published between 2007 and 2021, with seven being published in the past 5 years. [35][36][37]39,42,44,45…”

Section: Characteristics Of Studiesmentioning

confidence: 99%

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Incidence, factors, and disparities related to cancer among Black individuals in Canada: A scoping review

Cénat

Dromer

Darius

et al. 2022

Cancer

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“…This may be associated with better sanitation has been offset by other factors including overwork, obesity or food sharing. [ 12 , 13 ] Horizontally, the RRs of cohort effects for incidence and mortality in the US went down faster than China before 1950, but the opposite was observed since 1950. China broke from its feudal past in 1949, established a new political structure, boosted the economy progress and modernized the country.…”

Section: Discussionmentioning

confidence: 99%

“…China broke from its feudal past in 1949, established a new political structure, boosted the economy progress and modernized the country. Socioeconomic status has been proved to be strongly associated with GC incidence and mortality, [ 13 ] and the decrease can be related to behavioral, occupational, metabolic risk factors and treatment modality in a rapid-changing socioeconomic environment. [ 9 ] Vertically, the constantly decreasing RRs of cohort effect may also due to the better education that the later birth cohorts received than the earlier cohorts, and therefore had a stronger awareness of health and disease prevention.…”

Section: Discussionmentioning

confidence: 99%

Stratified analysis of multiple management of gastric cancer: A population-based study of incidence, mortality and DALY

et al. 2022

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The aim was to illuminate the difference in incidence, mortality, and disability-adjusted life-years (DALYs) of gastric cancer (GC) between the United States of America (US) and China. The multiple management was analyzed with stratification to explore an effective survival improvement strategy. The Global Burden of Disease Study data was analyzed to assess GC morbidity, mortality and DALYs from 1990 to 2019 in the US and China. The age-period-cohort model was established to generate estimation of metrics. Verification was completed and stratified analysis of the multiple management was performed by accessing data of Surveillance, Epidemiology, and End Results database in 1992 to 2019. Continuous downtrends in GC incidence, mortality and DALYs from 1990 to 2019 and persistent uptrends in 1-, 3-year survival from 1992 to 2019 were observed in the US population. In the Chinese population, the overall trends of incidence, mortality and DALYs decreased with a fluctuating manner. The lower overall survival rates were observed in elderly, unmarried patients, distant disease and poor grade, as well as patients lacking of medical treatment (P < .05). In stratified analyses, single local therapy decreased and the other modalities increased over time across different stages. Moreover, combined treatment and single systemic therapy decreased, but single local and conservative therapy increased with age. The study quantified the incidence, GC-specific mortality and DALYs in the US and China and estimated stage profiles, 1-and 3-year survival in the US. The heavy burden on later-onset GC (>70) and potential increase on early-onset GC (<40) needed to be addressed. Combined modalities and single chemotherapy were becoming more widely used over time, however, their uses decreased with age because of poor physical fitness. Our findings provide new insights into management tailoring appropriately to specific subgroups contributes to the increasing survival rate. Abbreviations: AAI = age-adjusted incidence, AAPCs = average annual percent changes, APCs = annual percentage changes, CI = confidence interval, DALYs = disability-adjusted life-years, GBD = the Global Burden of Disease Study, GC = gastric cancer, IBM = incidence-based mortality, OS = overall survival, RR = rate ratios, SEER = the Surveillance, Epidemiology, and End Results, US = the United States of America.

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The association between neighborhood‐level income and cancer stage at diagnosis and survival in Alberta

Ruan,

Heer,

Warkentin

et al. 2023

Cancer

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BackgroundSocioeconomic status (SES) is associated with a range of health outcomes, including cancer diagnosis and survival. However, the evidence for this association is inconsistent between countries with and without single‐payer health care systems. In this study, the relationships between neighborhood‐level income, cancer stage at diagnosis, and cancer‐specific mortality in Alberta, Canada, were evaluated.MethodsThe Alberta Cancer Registry was used to identify all primary cancer diagnoses between 2010 and 2020. Average neighborhood income was determined by linking the Canadian census to postal codes and was categorized into quintiles on the basis of income distribution in Alberta. Multivariable multinomial logistic regression was used to model the association between income quintile and stage at diagnosis, and the Fine–Gray proportional subdistribution hazards model was used to estimate the association between SES and cancer‐specific mortality.ResultsOut of the 143,818 patients with cancer included in the study, those in lower income quintiles were significantly more likely to be diagnosed at stage III (odds ratio [OR], 1.07; 95% CI [confidence interval], 1.06–1.09) or IV (OR, 1.12; 95% CI, 1.11–1.14) after adjusting for age and sex. Lower income quintiles also had significantly worse cancer‐specific survival for breast, colorectal, liver, lung, non‐Hodgkin lymphoma, oral cavity, pancreas, and prostate cancers.ConclusionsDisparities were observed in cancer outcomes across neighborhood‐level income groups in Alberta, which demonstrates that health inequities by SES exist in countries with single‐payer health care systems. Further research is needed to better understand the underlying causes and to develop strategies to mitigate these disparities.

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Geographic and Socioeconomic Disparity of Gastric Cancer Patients in Canada

Cited by 7 publications

References 61 publications

Incidence, factors, and disparities related to cancer among Black individuals in Canada: A scoping review

Incidence, factors, and disparities related to cancer among Black individuals in Canada: A scoping review

Stratified analysis of multiple management of gastric cancer: A population-based study of incidence, mortality and DALY

The association between neighborhood‐level income and cancer stage at diagnosis and survival in Alberta

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