Key result
Among patients with TIA, a high-risk ABCD2 score (>5) was associated with approximately twice the incidence of ischemic stroke up to 1 year compared to the low-risk group.
Why the study?
ABCD2 scores predict early stroke risk after TIA, but real-world characteristics and outcomes across risk groups remain poorly characterised in routine practice.
Does a higher ABCD2 score predict increased incidence of ischemic stroke and healthcare resource utilization in patients with TIA?
Population
54,392 adults with first TIA in the US Truveta EHR database (4667 with ABCD2 scores)
Comparison
Low-risk (<4) vs moderate-risk (4–5) vs high-risk (>5) ABCD2 scores
Design
Retrospective observational EHR study
Follow-up
1 year
Authors
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Supports ABCD2 use in TIA but should not change practice; leaves open value of routine scoring in prospective trials.
Observational (n=4,667)
Yes
Does a higher ABCD2 score predict increased incidence of ischemic stroke and healthcare resource utilization in patients with TIA?
Real-world data confirms that higher ABCD2 scores in TIA patients predict significantly higher 1-year ischemic stroke risk and healthcare resource utilization.
Nguyen et al. (2026) conducted an observational in Transient Ischemic Attack (TIA) (n=4,667). High-risk ABCD2 score (>5) vs. Low-risk (<4) and moderate-risk (4-5) ABCD2 scores was evaluated on Incidence of ischemic stroke (IS). Among patients with TIA, a high-risk ABCD2 score (>5) was associated with approximately twice the incidence of ischemic stroke up to 1 year compared to the low-risk group.
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