A landmark national study has found that approximately 14 percent of stroke patients in India are below the age of 45, a figure that has alarmed neurologists and public health researchers who have long suspected that the country’s stroke burden skews younger than global averages but lacked robust registry-level data to confirm it.
The findings, drawn from the Indian Council of Medical Research’s National Stroke Registry Programme, point to hypertension as the leading driver of stroke across all age groups, including among younger patients who are often undiagnosed and undertreated until a stroke event forces the issue. The registry, which pools data from population-based and hospital-based registries across multiple states, represents the most comprehensive picture India has produced so far of who is having strokes, where, and why.
Among the sharpest findings is the gender split. The registry data shows stroke is significantly more common in men, with male patients accounting for a majority of cases across nearly all age brackets. In the young stroke cohort, defined broadly as those aged 18 to 45, men represent an overwhelming share, with some registry data from cities like Bangalore indicating a male-to-female ratio of roughly 2:1. Researchers caution this does not mean women are protected, but rather that traditional risk factors such as uncontrolled blood pressure, tobacco use, and sedentary work patterns are more prevalent and poorly managed among young Indian men.
Rural populations have also emerged as disproportionately affected. The National Stroke Registry data, including earlier findings published in The Lancet Regional Health, showed that stroke incidence rates in rural areas of regions like Cuttack were nearly double those seen in urban populations in comparable areas, driven partly by poor awareness of blood pressure control and limited access to imaging and stroke care facilities. Case fatality rates in rural settings were also higher, with some registries recording mortality rates upwards of 40 percent within the first month of stroke onset.
Neurologists say the data, while sobering, is not entirely surprising given what they see on the ground. Hypertension in India remains severely undertreated, with national surveys showing that fewer than half of those who know they have high blood pressure are receiving effective therapy. In younger patients, the problem is compounded by the fact that many have never been screened at all. A 35-year-old with hypertension in a tier-two city may carry the condition for years before it is detected, often only after a cardiac or cerebrovascular event.
“The tragedy of young stroke in India is that most of these cases are preventable,” said a senior neurologist associated with the registry programme, speaking on the condition of anonymity pending formal publication of the full dataset. “When we look at the risk factor profiles, hypertension dominates, and hypertension is something we can manage. The gap is in detection, not in the availability of treatment.”
Beyond blood pressure, the registry data points to diabetes, dyslipidemia, and tobacco use as significant contributors among younger patients. Researchers note that even when these risk factors are identified, up to 40 percent of young stroke cases may have no fully explained cause after thorough evaluation, a proportion classified as cryptogenic and attributed to a mix of atherosclerotic disease, hypercoagulable states, and possible inherited conditions that remain uncharacterised in Indian populations.
The registry data also underscores a geography problem in stroke care. Stroke units, which have been shown to significantly improve survival and functional outcomes, are concentrated almost entirely in urban private hospitals. Intravenous thrombolysis, the clot-busting treatment that must be given within hours of an ischemic stroke, is administered in only around 11 percent of eligible patients nationally, largely because most patients either present too late or to facilities that are not equipped to administer it.
For public health planners, the ICMR findings represent both a warning and a call to restructure how India approaches non-communicable disease prevention. Stroke is already the country’s fourth leading cause of death and fifth leading cause of disability. If the incidence among working-age adults continues to rise, the economic consequences alone will be significant. Most patients under 45 who survive a stroke face decades of potential disability, lost income, and caregiver burden on their families.
Researchers involved in the registry programme have called for mandatory blood pressure screening at the primary health centre level, expanded stroke unit capacity in district hospitals, and greater awareness campaigns targeting men in the 30 to 45 age bracket. Some have also flagged the need for better data from tier-two and tier-three cities, where much of India’s stroke burden is thought to reside but where registry infrastructure remains thin.
The broader global picture provides some context, though not much comfort. While high-income countries have seen stroke incidence fall by roughly 42 percent over the past four decades through aggressive cardiovascular risk management, low and middle-income countries, including India, have seen incidence more than double over the same period. The ICMR registry, still expanding its hospital-based network, is expected to produce more granular state-level data in future reports that could sharpen both the diagnosis and the policy response.
