Breast and cervical cancer incidence and mortality by age, region, and country (Global), 1980-2010

With this interactive tool, explore trends in breast and cervical cancer for women (aged 15-79) and reproductive age women (aged 15-49) for 187 countries between 1980 and 2010. Watch as the risk of death due to breast cancer falls for many countries between 1980 and 2010, while the percent of deaths from breast cancer in women of reproductive age increases. You can also focus on specific countries, explore cervical cancer trends, and compare different age groups.

Tips for using this tool are provided under the “how to explore” tab below.

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Data Visualization

How to ExploreData StoriesTerms Defined

Hit play and watch changes over time.
You can also click on the timeline to start the chart at a specific year (for example, clicking about halfway along the timeline will allow you to hit play and begin the visualization at 1990).
Next to the x-axis and y-axis labels, you can click the arrow to change to linear versus logarithmic scale.
Select specific countries to watch by checking the box next to the country of interest. You can turn “Trails” on or off to see the complete pattern of a country over time.
Click and drag a rectangle within the graph plot to zoom in on that area; this may be especially helpful when viewing specific country trends.

By selecting “No. of breast cancer cases” or “No. of cervical cancer cases” for any age group, then selecting the bar chart view, you can watch the incidence in breast and cervical cancer increase steadily between 1980 and 2010.
By selecting “Risk of incidence breast cancer (%)” for the x-axis (bottom drop down menu) and “Risk of mortality breast cancer (%),” you can see how many countries have experienced a decrease in the risk of death due to breast cancer, even as the risk for developing breast cancer increases.

GBD Region: Global Burden of Disease region classified by epidemiological profile and geography
Population (women 15-79): Population of women aged 15 and older
No. of breast cancer deaths (15-49): Number of deaths due to breast cancer in women aged 15-49
No. of cervical cancer deaths (15-49): Number of deaths due to cervical cancer in women aged 15-49
No. of breast cancer cases (15-49): Number of cases of breast cancer in women aged 15-49
No. of cervical cancer cases (15-49): Number of cases of cervical cancer in women aged 15-49
% deaths from breast cancer (15-49): Percent of deaths among women with breast cancer aged 15-49
% deaths from cervical cancer (15-49): Percent of deaths among women with cervical cancer aged 15-49
No. of breast cancer deaths (15-79): Number of deaths due to breast cancer in women aged 15 and older
No. of cervical cancer deaths (15-79): Number of deaths due to cervical cancer in women aged 15 and older
No. of breast cancer cases (15-79): Number of cases of breast cancer in women aged 15 and older
No. of cervical cancer cases (15-79): Number of cases of cervical cancer in women aged 15 and older
Risk of mortality breast cancer (%): Risk of mortality due to breast cancer for all women, expressed as a percentage
Risk of mortality cervical cancer (%): Risk of mortality due to cervical cancer for all women, expressed as a percentage
Risk of incidence breast cancer (%): Risk of incidence of breast cancer in all women, expressed as a percentage
Risk of incidence cervical cancer (%): Risk of incidence of cervical cancer in all women, expressed as a percentage

Our Approach

In September 2011, IHME published in The Lancet global estimates for breast and cervical cancer: Breast and cervical cancer in 187 countries between 1980 and 2010: a systematic analysis. The new estimates differed from estimates available from the International Agency for Research on Cancer through the GLOBOCAN website.

Our Approach

We based our estimates on additional data sources, especially for cancer deaths. For example, in some countries that lack vital registration data, we were able to use data from verbal autopsy studies, which gather information from relatives about how a family member died. Even in countries where rich data sources are available, IARC used modeled mortality estimates from the World Health Organization. For cervical cancer deaths in India, for example, the IARC approach yields a much higher number of deaths than the IHME approach.
In both vital registration systems and cancer registries, many cancer deaths are inaccurately coded or ill-defined by the agencies collecting the data. Using methodological tools designed at IHME, we fixed the coding and assigned the deaths to the appropriate categories.
To generate the mortality-to-incidence (MI) ratio, a key measure for the number of women with cancer who die annually, we improved on previous methods by factoring in age, country, and year. We have found that our estimates are in sync with data from cancer registries.
We use one approach for estimating mortality data in 187 countries. GLOBOCAN data are based on 26 different approaches for different groups of countries. The approach used for Saudi Arabia and South Africa, for example, is different from the one used for Vietnam and China.
Many of the approaches used for estimating mortality in the GLOBOCAN data rely on trends observed in Nordic countries. We believe relying on such a limited number of countries leads to an overestimation of MI ratios in many developing countries, particularly for breast cancer.

A detailed discussion of our methods can be found in the Web Appendixwith the journal article.

Breast and cervical cancer incidence and mortality by age, region, and country (Global), 1980-2010

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