Mapping cancer mortality‐to‐incidence ratios to illustrate racial and sex disparities in a high‐risk population
Open Access
- 20 May 2009
- Vol. 115 (11), 2539-2552
- https://doi.org/10.1002/cncr.24270
Abstract
BACKGROUND: Comparisons of incidence and mortality rates are the metrics used most commonly to define cancer‐related racial disparities. In the US, and particularly in South Carolina, these largely disfavor African Americans (AAs). Computed from readily available data sources, the mortality‐to‐incidence rate ratio (MIR) provides a population‐based indicator of survival. METHODS: South Carolina Central Cancer Registry incidence data and Vital Registry death data were used to construct MIRs. ArcGIS 9.2 mapping software was used to map cancer MIRs by sex and race for 8 Health Regions within South Carolina for all cancers combined and for breast, cervical, colorectal, lung, oral, and prostate cancers. RESULTS: Racial differences in cancer MIRs were observed for both sexes for all cancers combined and for most individual sites. The largest racial differences were observed for female breast, prostate, and oral cancers, and AAs had MIRs nearly twice those of European Americans (EAs). CONCLUSIONS: Comparing and mapping race‐ and sex‐specific cancer MIRs provides a powerful way to observe the scope of the cancer problem. By using these methods, in the current study, AAs had much higher cancer MIRs compared with EAs for most cancer sites in nearly all regions of South Carolina. Future work must be directed at explaining and addressing the underlying differences in cancer outcomes by region and race. MIR mapping allows for pinpointing areas where future research has the greatest likelihood of identifying the causes of large, persistent, cancer‐related disparities. Other regions with access to high‐quality data may find it useful to compare MIRs and conduct MIR mapping. Cancer 2009. © 2009 American Cancer Society.Keywords
This publication has 38 references indexed in Scilit:
- Soil zinc content, groundwater usage, and prostate cancer incidence in South CarolinaCancer Causes & Control, 2008
- Racial and ethnic differences in breast cancer survivalCancer, 2007
- Cancer Statistics, 2007CA: A Cancer Journal for Clinicians, 2007
- Colorectal cancer screening among low-income African Americans in East Harlem: A theoretical approach to understanding barriers and promoters to screeningJournal of Urban Health, 2006
- Factors Associated with Physical Activity Among African-American Men and WomenAmerican Journal of Preventive Medicine, 2006
- Physical Activity and Survival After Breast Cancer DiagnosisPublished by American Medical Association (AMA) ,2005
- The influence of mammographic screening on national trends in breast cancer incidenceEuropean Journal of Cancer Prevention, 2005
- Invited Commentary: Menthol Cigarettes and Risk of Lung CancerAmerican Journal of Epidemiology, 2003
- A Worse Prognosis for Smokers with Prostate CancerJournal of Urology, 1995
- International trends in prostatic cancerInternational Journal of Cancer, 1984