Epidemiology and Burden of Stroke Care

Stroke remains a leading cause of death and long‐term disability worldwide, with a profound impact on health systems, societies and economies. Age‐standardised incidence rates vary substantially between regions, reflecting differences in demographic transition, vascular risk factor prevalence and access to preventative care. High‐income countries have witnessed stabilising or declining stroke incidence through effective hypertension control, smoking cessation and improved acute management. In contrast, low- and middle-income countries (LMICs) face rising incidence linked to urbanisation, ageing populations and limited health infrastructure. Survivors often require comprehensive rehabilitation, placing additional strain on resources. The burden is measured not only by mortality but by years lived with disability and disability-adjusted life years (DALYs), which capture both premature death and long-term impairment. Economic analyses highlight substantial direct costs of hospitalisation and treatment alongside indirect costs from lost productivity and caregiving. Persistent inequalities in stroke prevention and care manifest across socioeconomic strata and geographic regions, emphasising the need for tailored strategies that integrate primary prevention, acute intervention, rehabilitation and long-term support.

Research from Nature Portfolio

Recent large-scale analyses have provided updated estimates of global stroke burden, revealing that although age-standardised mortality has declined in several regions, absolute numbers of incident strokes and survivors continue to climb due to population growth and ageing. Modelling studies now quantify regional disparities in stroke incidence, mortality and DALYs, informing priority setting for resource allocation. Another investigation has elucidated the influence of socioeconomic deprivation on stroke outcomes, demonstrating that lower national income and individual educational level independently predict higher post-stroke mortality and disability. This work underscores the need to integrate social determinants into stroke care frameworks. Additionally, advances in genetic epidemiology have identified novel susceptibility loci through genome-wide association studies, offering insights into pathophysiological mechanisms and potential targets for personalised risk stratification.

Epidemiology and Burden of Stroke Care publication trend

The graph below shows the total number of articles in epidemiology and burden of stroke care across all publications each year (not limited to Nature Index journals).

Technical terms

Incidence: The number of new stroke cases occurring in a specified population over a given period.

Prevalence: The total number of individuals living with stroke in a population at a particular time.

Disability-Adjusted Life Year (DALY): A metric combining years of life lost due to premature death and years lived with disability, used to quantify overall disease burden.

Thrombolysis: Pharmacological treatment to dissolve blood clots in acute ischaemic stroke, typically with recombinant tissue plasminogen activator.

Stroke unit: A specialised, multidisciplinary hospital ward designed for organised acute stroke care, improving survival and functional recovery.

References

1. Cohort Profile: The Stroke in Sierra Leone (SISLE) Register. International Journal of Epidemiology (2023).
2. An Estimate of the Incidence and Prevalence of Stroke in Africa: A Systematic Review and Meta-Analysis. PLOS ONE (2014).
3. Scoping review of acute stroke care management and rehabilitation in low and middle-income countries. BMC Health Services Research (2019).