期刊
CANCER
卷 121, 期 10, 页码 1563-1569出版社
WILEY
DOI: 10.1002/cncr.29228
关键词
colorectal cancer; mass screening; public health; clinical medicine
类别
资金
- National Cancer Institute, Center to Reduce Cancer Health Disparities (Community Networks Program) [1U54 CA153461-01]
BACKGROUNDDisparities in cancer screening, incidence, treatment, and survival are worsening globally. The mortality-to-incidence ratio (MIR) has been used previously to evaluate such disparities. METHODSThe MIR for colorectal cancer is calculated for all Organisation for Economic Cooperation and Development (OECD) countries using the 2012 GLOBOCAN incidence and mortality statistics. Health system rankings were obtained from the World Health Organization. Two linear regression models were fit with the MIR as the dependent variable and health system ranking as the independent variable; one included all countries and one model had the divergents removed. RESULTSThe regression model for all countries explained 24% of the total variance in the MIR. Nine countries were found to have regression-calculated MIRs that differed from the actual MIR by >20%. Countries with lower-than-expected MIRs were found to have strong national health systems characterized by formal colorectal cancer screening programs. Conversely, countries with higher-than-expected MIRs lack screening programs. When these divergent points were removed from the data set, the recalculated regression model explained 60% of the total variance in the MIR. CONCLUSIONSThe MIR proved useful for identifying disparities in cancer screening and treatment internationally. It has potential as an indicator of the long-term success of cancer surveillance programs and may be extended to other cancer types for these purposes. Cancer 2015;121:1563-1569. (c) 2015 American Cancer Society. The mortality-to-incidence ratio helps to identify disparities in colorectal cancer screening and treatment internationally. It has the potential to be an indicator of the long-term success of colorectal cancer surveillance programs, with possible extension to other cancer types.
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