Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Dec;110(6):722-731.
doi: 10.17269/s41997-019-00227-y. Epub 2019 Jun 17.

Trends in socio-economic inequalities in bladder cancer incidence in Canada: 1992-2010

Ryan Densmore  1 , Mohammad Hajizadeh  2 , Min Hu  3
Affiliations

Trends in socio-economic inequalities in bladder cancer incidence in Canada: 1992-2010

Ryan Densmore et al. Can J Public Health. 2019 Dec.

Abstract
in English, French

Objectives: Growing literature demonstrates widening socio-economic gradients in cancer incidence in different countries. However, few studies have measured the magnitude of socio-economic inequalities in the incidence of different types of cancers. This study aimed to evaluate socio-economic inequalities in bladder cancer incidence in Canada over time.

Methods: Using data obtained from the Canadian Cancer Registry (CCR), the Canadian Census of Population (CCP), and the National Household Survey (NHS), we examined socio-economic inequalities of bladder cancer incidence among men and women in Canada from 1992 to 2010. Income- and education-related inequalities were measured using the concentration index (C) approach. We also analyzed the trends of income- and education-related inequalities over the study period.

Results: There is an increasing trend in bladder cancer incidence in Canada. The estimated C suggested a higher incidence of bladder cancer among low socio-economic-status individuals. The results revealed that income-related inequality in bladder cancer incidence increased among the female population. Education-related inequality in the incidence of bladder cancer widened for both males and females in Canada.

Conclusion: The concentration of bladder cancer in Canada is growing among the socio-economically disadvantaged population. Further studies are required to help elucidate causal relationships between socio-economic status and bladder cancer incidence in Canada.

Objectifs: L’élargissement des gradients socioéconomiques de l’incidence du cancer dans différents pays est de plus en plus attesté dans la littérature scientifique. Peu d’études ont toutefois mesuré l’ampleur des inégalités socioéconomiques dans l’incidence de différents types de cancers. Nous avons cherché à évaluer les inégalités socioéconomiques dans l’incidence du cancer de la vessie au Canada au fil du temps.

Méthode: À l’aide des données du Registre canadien du cancer (RCC), du Recensement de la population canadienne (RPC) et de l’Enquête nationale auprès des ménages (ENM), nous avons examiné les inégalités socioéconomiques de l’incidence du cancer de la vessie chez les hommes et les femmes au Canada de 1992 à 2010. Nous avons mesuré les inégalités liées au revenu et au niveau d’instruction par la méthode de l’indice de concentration (C). Nous avons également analysé les tendances des inégalités liées au revenu et au niveau d’instruction sur la période de l’étude.

Résultats: L’incidence du cancer de la vessie est en hausse au Canada. L’indice C estimatif indique une incidence supérieure du cancer de la vessie chez les personnes de faible statut socioéconomique. Selon les résultats que nous avons obtenus, les inégalités liées au revenu dans l’incidence du cancer de la vessie ont augmenté dans la population féminine. Les inégalités liées au niveau d’instruction dans l’incidence du cancer de la vessie se sont creusées chez les hommes et les femmes au Canada.

Conclusion: La concentration des cancers de la vessie au Canada s’accentue dans les populations défavorisées sur le plan socioéconomique. Il faudrait pousser la recherche pour élucider les relations causales entre le statut socioéconomique et l’incidence du cancer de la vessie au pays.

Keywords: Bladder cancer; Canada; Education; Incidence; Income; Inequalities; Trends.

PubMed Disclaimer

Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
Incidence of bladder cancer per 10,000 in Canada and by sex from 1992 to 2010. Note: Incidence for Canada does not include Ontario as it did not report in situ bladder cancer cases for the time period considered
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

References

    1. Abajobir AA, Abate KH, Abbafati C, Abbas KM, Abd-Allah F, Abdulkader RS, et al. Global, regional, and national incidence, prevalence, and years lived with disability for 328 diseases and injuries for 195 countries, 1990–2016: a systematic analysis for the Global Burden of Disease Study 2016. Lancet. 2017;390(10100):1211–1259. doi: 10.1016/S0140-6736(17)32154-2. - DOI - PMC - PubMed
    1. Antoni S, Ferlay J, Soerjomataram I, Znaor A, Jemal A, Bray F. Bladder cancer incidence and mortality: a global overview and recent trends. European Urology. 2017;71(1):96–108. doi: 10.1016/j.eururo.2016.06.010. - DOI - PubMed
    1. Booth CM, Li G, Zhang-Salomons J, Mackillop WJ. The impact of socioeconomic status on stage of cancer at diagnosis and survival. Cancer. 2010;116(17):4160–4167. doi: 10.1002/cncr.25427. - DOI - PubMed
    1. Canadian Cancer Society’s Advisory Committee on Cancer Statistics (2017). Canadian Cancer Statistics 2017. Toronto, ON: Canadian Cancer Society. http://www.cancer.ca/~/media/cancer.ca/CW/cancer%20information/cancer%20....
    1. Cancer Research UK. (2017). Retrieved July 6, 2018, from https://www.cancerresearchuk.org/health-professional/cancer-statistics/s...-.

Publication types