Dr Christine Delon: Analysing Cancer Incidence by Ethnicity
06 Apr
Cargill Lecture Theatre
To celebrate World Health Day (7 April), and in recognition of this year's theme - Health for All - Dr Christine Delon will be speaking about her research on the differences in cancer incidence by ethnicity. Cancer incidence variation between population groups can inform public health and cancer services. Previous studies have shown cancer incidence rates vary by ethnic group in England. Since their publication, completeness of ethnicity recording in cancer data has improved, and relevant inequalities (e.g. risk factor prevalence and healthcare access) may have changed. This lecture forms part of our Race Matters Programme
Age-standardised incidence rates were calculated for Asian, Black, Mixed/Multiple and White ethnic groups in England in 2013-17, using almost 3 million diagnoses across 31 cancer sites. Rate ratios were calculated with the White ethnic group as reference. Sensitivity analyses used imputed ethnicity for cases with missing data, and perturbed population estimates.
Incidence rates for most cancer sites and ethnic group and sex combinations were lower in non-White minority ethnic groups compared with the corresponding White group, with particularly low rate ratios (below 0.5) for melanoma skin cancer and some smoking-related cancers (lung, bladder and oesophageal cancers). Exceptions included prostate cancer (2.1 times higher in males of Black ethnicity), myeloma (2.7-3.0 times higher in people of Black ethnicity), several gastrointestinal cancers (1.1-1.9 times higher in people of Black ethnicity, 1.4-2.2 times higher in people of Asian ethnicity), Hodgkin lymphoma (1.1 times higher in males of Asian ethnicity, 1.3 times higher in males of Black ethnicity), and thyroid cancers (1.4 times higher in people of Asian ethnicity, 1.2 times higher in people of Black ethnicity). Sensitivity analyses did not materially alter these results (rate ratios changed by a maximum of 12 percentage points, direction and significance of results were unchanged in all but two cancer site/sex/ethnic group combinations).
People of non-White minority ethnicity in England generally have lower cancer risk than the White population, though there are a number of notable exceptions. These results should galvanise efforts to better understand the reasons for this variation, and the possible impact on cancer services, patient experiences and outcomes.
- Race Matters Lecture: Analysing Cancer Incidence by Ethnicity in the England Cancer Registry Data
- Date: 6 April 2023
- Time: 18:00–19:30
- Venue: Cargill Lecture Theatre, Minerva Building, University of Lincoln
- Register: Book here!
This lecture is open to the public, and free to attend.
Dr Christine Delon
Senior Data and Research Analyst
Dr Christine Delon is a Senior Data Analyst at Cancer Research UK where she leads on compiling the UK cancer incidence and mortality statistics each year. She has published Differences in cancer incidence by broad ethnic group in England, 2013-2017 in the BJC (2022), and contributed to Socio-economic deprivation and cancer incidence in England: Quantifying the role of smoking in Plos One (2022). She also works on regional variation of cancer risk factors, incidence, mortality.
Dr Delon holds a PhD in Biochemistry from Cambridge University and worked as a Postdoc at the Max Planck Institute for Molecular Physiology.
An accomplished programmer in R, Alteryx and SQL, Christine also enjoys crafts, graphic novel book clubs and swimming.
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