Cancer and ageing

Population ageing will have consequences for cancer control globally as cancer is more prevalent in older adults. 

An older white woman smiling at her daughter as they hold hands

The world’s population is ageing rapidly. There are currently over 703 million people worldwide above the age of 65 years [i], representing 9.1% of the global population. Estimates suggest that this proportion will rise to 15.9% (1.5 billion people) by 2050.

Cancer can develop at any age, but the incidence of cancer rises dramatically at a later stage in life.

In fact, more than 50% of people who have cancer are 65 or older (calculated from the GLOBOCAN 2020 data). This is most likely due to the accumulation of risk factors for specific cancers, which increase with age and less effective cellular repair mechanisms. (Source: WHO)

Driving change for older adults with cancer

Cancer disproportionately affects older adults, who require tailored prevention, treatment and support. With populations ageing rapidly worldwide, this paper examines the major challenges and how the cancer community can help drive progress for older populations.

Access the publication

Podcast on cancer and ageing



Estimated increase in cancer incidence and mortality (2020 data: Globocan; 2030 previsions: IARC)
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Policy responses to meeting the needs of older people

With the increase of ageing populations and incidence of cancer worldwide, more practical research and action need to take place to adapt healthcare systems to be more patient-centric and inclusive of ageing populations to ensure healthy ageing for all.

How being older can affect cancer treatment

Age adds a layer of complexity to living with cancer. Many cancers in older people are diagnosed at a later stage, as early cancer symptoms can be mistaken for everyday pain or minor illnesses associated with old age. As a result, cancer treatment often starts late, which increases the likelihood of side effects and reduces the chances of a successful treatment outcome.  

Furthermore, the treatment of older patients with cancer presents a number of unique challenges as older adults are more likely to suffer from other chronic conditions and non-communicable diseases, such as high blood pressure or diabetes. This makes cancer treatment more challenging.

Older patients are also often more vulnerable to treatment toxicities that can significantly affect their quality of life (Source: ASCO). Therefore, treatment plans should be built on a geriatric cancer assessment, which brings together a patient’s preferences and capacities and expert support from a multidisciplinary team, in order to deliver care and maintain an individual’s quality of life.

International Public Opinion Survey

An opinion poll covering 20 countries conducted by UICC via Ipsos showed that in comparison to younger age groups, people above 50 years old were more likely to say that they have not done anything in the past 12 months to reduce their risk of cancer. Conversely, they comprise the most likely age group to have participated in a cancer screening in the past 12 months – particularly women over 50 years of age. This is consistent with global guidelines for screening, which call for these groups to be screened more than those aged under 35.

View the full International Public Opinion Survey

In addition, the number of adults over the age of 65 continues to increase and so does the number of older adults living with one or more noncommunicable diseases (NCD) who require treatment and supportive care. This brief aims to highlight the unmet needs of older adults living with NCDs and co-morbidities and explore how countries are responding and fostering healthy ageing as an integral part of UHC.

These and other age-specific aspects need to be taken into consideration when defining the cancer care approach. 

What are the gaps in care for older cancer patients?

Unfortunately, the increase in the number of older people living with cancer has not been mirrored by a proportional increase in public awareness of the burden, or by investments in the health services required to respond to the unique needs of this group. Some of the key challenges are:

  • limited integration of older people in discussions about cancer, including integration of older people into national multi-stakeholder cancer partnerships;
  • uneven inclusion of geriatric cancer in national cancer control plans (NCCPs); 
  • limited awareness and uptake of existing guidelines, educational resources and inclusion of older adults in cancer research;
  • limited availability of specialists in geriatric oncology, unsystematic inclusion of gerontologists in cancer management and cancer care pathways, limited information on geriatric oncology[ii].

When cancer grows old: Assessing the socio-economic burden of cancer and ageing and the policies required.

This report looks, for the first time, at the socio-economic impacts of a growing population of older adults with cancer and the policies which can help to address the current inequities and minimise the impacts on patients, their families and countries.

As populations age, their risk of developing cancer increases. Research has found that the elderly (defined as people aged 65 years and above) are 11 times more likely to develop cancer, compared to younger people. Given that the global population is ageing cancer among the elderly is a health burden that will continue to grow over the next two decades.

Read the report

What UICC does

The topic of ageing and cancer will grow in importance in the next decades and UICC is committed to raising awareness of how best to prepare healthcare systems, so that cancer care challenges for older patients are appropriately addressed. 

To this effect, UICC is partnering with Sanofi on the When Cancer Grows Old initiative.

UICC is working with its member organisations around the world to help implement a range of priority actions identified at the World Cancer Leaders’ Summit in Kazakhstan in 2019.

Through UICC's Technical Fellowships programme, learning and training opportunities are available for cancer professionals working in geriatric oncology through one-month international visits.

Fellowship opportunities in cancer and ageing are now available.

Write to for more information.

Micro-course: cancer and ageing - The facts, care models and policies

This micro-course took place in November 2022, and highlighted the importance of geriatric assessments for older patients with cancer, and how the results can be used to implement interventions aimed at improving patient care and allowing for more tailored cancer treatment.

Click here to view the course syllabus

Ageing and cancer series - Special Focus Dialogues

Special Focus Dialogue - Caring for older cancer patients during COVID-19

In the ageing and cancer series: #1 Caring for older cancer patients during COVID-19 Special Focus Dialogue, professionals concerned with cancer and ageing and representatives of cancer patients addressed the dilemmas faced by clinical decision-making and public health policies during the pandemic in order to preserve the highest standards of care and treatment for older patients with cancer, and looked at the lessons that can be drawn to enhance health systems’ responsiveness to the needs of older adults going forward.

Go straight to the key insights and outcomes of the Dialogue with this summary brief

Long View Dialogue Cancer & Ageing

In the Ageing and Cancer series: #2 Reshaping cancer control for ageing societies, following the Special Focus Dialogue on Caring for older cancer patients during COVID-19, this second discussion in the Ageing and Cancer series brings together key experts from international bodies, government, academia and public health to take the ‘long view’ on reshaping cancer control for the needs of ageing societies.

Cancer in the Decade of Healthy Ageing – Roundtable discussion

Roundtable discussion_Ageing and cancer

As part of its response to the UN Decade of Healthy Ageing, UICC convened actors from across the healthy ageing and cancer communities. The goal of the roundtable discussion was to bring together key stakeholders to share perspectives on the current challenges facing older adults, understand the respective challenges and issues from the participants’ diverse areas of expertise and explore potential opportunities to inform each other’s work and effectively collaborate.

Go straight to the key insights and outcomes of the roundtable with this summary brief

Special Focus Dialogue: Patient-centred cancer care at every age

Special focus dialogue_presentation

Building on a forthcoming report, this Virtual Dialogue explored how we can better integrate care for people with cancer and other NCDs, with particular focus on the needs of older adults. It explored how countries and institutions are building systems around patients and populations, and what roles all members of the cancer and NCD community can play in delivering patient-centred cancer care at all ages.



Tags Ageing

Last update

Friday 15 September 2023

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