Global burden of cancer pattern in 2020 & prediction to 2040 among older adults.

Background & objectives Cancer is one of the leading causes of death among older adults worldwide. The global burden of cancer among older individuals is increasing due to the ageing population. The increasing burden of cancer among older adults will pose significant social and economic challenges for the delivery of healthcare services. Materials Estimated cancer new cases, deaths, age-standardized truncated incidence and mortality rate per 100,000 for older adults (60 yr or above) were reported using GLOBOCAN 2020 estimates (gco.iarc.fr). Mortality to Incidence ratio (M/I ratio) expressed in percentage by gender and continent was provided. Results Globally, of all cancer cases, 11.3 million cases (representing 62.3%) and 7.5 million deaths (representing 71.2%) were seen among older adults. The top five leading sites of cancer account for 62.2 per cent of older men and 55.9 per cent of older women; however, a widespread geographical variation across world regions is observed. The number of new cancer cases among older adults is expected to rise from 11.3 to 19.8 million (a 75.2% increase) and deaths from 3.99 to 7.3 million (82.8% increase) by 2040. Interpretation & conclusions The expected rise will bring exceptional challenges to healthcare systems, especially in lower- or lower-medium-income countries where resources are limited. Data on cancer among older adults will help health planners and policymakers develop global geriatric cancer control policies.