Stroke among 20-54-year-olds nearly doubled in one US region between 1993 and 2020

Design

Population-based stroke surveillance, six periods 1993-2020

Population

2,076 first-ever strokes in adults aged 20-54, five-county US region

Primary outcome

Incidence and 30-day case fatality over time

Effect

Incidence 33.9 to 62.2 per 100,000; case fatality 11.7% to 9.4%

A population-based study in Neurology (23 September 2026) ascertained and adjudicated every hospitalised stroke in a five-county US region across six periods from 1993 to 2020, and examined 2,076 first-ever strokes in adults aged 20 to 54.

Stroke incidence in young adults rose from 33.9 to 62.2 per 100,000 person-years, driven by ischaemic stroke (23.8 to 47.3), while it fell in older adults (618.8 to 453.0). Thirty-day case fatality in young adults fell modestly, from 11.7% to 9.4%, mainly after intracerebral haemorrhage. Hypertension, diabetes, atrial fibrillation and substance use all became more common.

It is one US region, and better imaging over three decades will have detected more small strokes. But the rise in vascular risk factors in young adults is consistent with it.

In India, where the onset of hypertension and diabetes is earlier, the same pattern is plausible, though this study provides no Indian data.

• Consider stroke in a young adult with sudden focal symptoms — incidence is rising
• Screen young stroke patients for hypertension, diabetes, AF and substance use
• Ask directly about cocaine, amphetamines and cannabis in young adults with stroke
• Treat vascular risk factors in young adults as aggressively as in older patients

Why it matters

Stroke is falling in older adults but rising in the young, which challenges the idea of stroke as a disease of old age.

Don't overread it

Better imaging over 27 years may account for part of the rise in detected ischaemic stroke.

The statistics, in plain English

The incidence nearly doubled, but the trend test (p = 0.04) is only modestly significant across six time points. The fall in case fatality from 11.7% to 9.4% is small in absolute terms.

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