Stroke Incidence Rises in Boys, Stable in Girls
Rising Tide: Pediatric Stroke Incidence Increases Among Boys, Highlighting Urgent Need for Improved Care
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Copenhagen, Denmark – A complete eight-year study analyzing Danish nationwide registries has revealed a concerning upward trend in the incidence of stroke among children, particularly boys, underscoring a critical need for enhanced pediatric stroke management, secondary prevention, and rehabilitation strategies. The research, published in Neurology, identified a significant annual increase in arterial ischemic stroke among boys, while incidence rates remained stable for girls.
methodology: Unraveling Pediatric Stroke Trends
The robust methodology employed in this study leveraged data from three linked Danish national registries: the Danish National Patient Registry, the Civil Registration System, and the Danish Registry of causes of Death, spanning the period from 2013 to 2020.Researchers meticulously identified 221 children, aged between 29 days and 17 years, who experienced their first-ever stroke.This cohort comprised 127 cases of arterial ischemic stroke and 83 cases of intracerebral hemorrhage, identified using International Classification of Diseases, Tenth Revision (ICD-10) codes.
To ensure accuracy and reliability, each identified case underwent validation through a thorough review of medical records. The children were then followed up until the occurrence of death, emigration, completion of a 5-year follow-up period, or January 1, 2023, whichever event transpired first.The study meticulously assessed key outcomes, including mortality, utilizing Kaplan-Meier analysis, and the extent of neurologic deficits, measured by the Paediatric Stroke Outcome Measure. furthermore, the research examined sex-specific incidence trends to identify any disparities.
Key Findings: A Growing Concern for Young Boys
The study’s findings paint a stark picture of pediatric stroke. The overall age-adjusted incidence of stroke was calculated at 2.15 per 100,000 person-years (95% CI, 1.88-2.45). A particularly significant observation was the annual increase in the incidence of arterial ischemic stroke among boys, rising by 0.14 per 100,000 person-years (95% CI, 0.018-0.26). In contrast, stroke incidence rates remained stable across all subtypes among girls, showing a yearly change of -0.021 (95% CI, -0.16 to 0.12).
The impact of stroke on children is significant, with all-cause mortality reported at 11% at the 5-year mark.Shorter-term mortality was also significant, standing at 7.7% at 30 days and 10.0% at 1 year. Critically, children experiencing intracerebral hemorrhage faced significantly higher mortality rates compared to those with arterial ischemic stroke.
Among the survivors, the long-term consequences of stroke were also considerable. Moderate-to-severe neurologic deficits were observed in 20.2% of children who had arterial ischemic stroke and 23.1% of those who had intracerebral hemorrhage.Despite the observed increase in stroke incidence among boys, the study found no significant difference in mortality between the earlier cohort (2013-2016) and the later cohort (2017-2020) (P =.77), suggesting that current management strategies may not be fully mitigating the impact of the rising incidence.
Implications for practice: A Call to Action
“Morbidity and mortality after stroke were substantial, highlighting the need for further improvements in acute pediatric stroke management, secondary prevention, and rehabilitation,” the authors emphasized. This sentiment underscores the urgent requirement for healthcare professionals and policymakers to address the growing challenge of pediatric stroke. Enhanced diagnostic capabilities, specialized treatment protocols for acute pediatric stroke, and comprehensive long-term rehabilitation programs are crucial to improve outcomes for affected children.
Source and Limitations
This pivotal study was led by Julie Brix Bindslev from the Department of Neurology at the University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark. The findings were published online on July 17, 2025, in the esteemed journal Neurology.
While the study provides valuable insights, certain limitations warrant consideration. The reliance on register-based diagnoses means that some stroke cases may have been missed. The eight-year study period, while extensive, may have limited the statistical power to detect very subtle trends. Additionally, although changes in diagnostic criteria and access to MRI over time could potentially influence long-term trends, their impact is considered likely minimal within the context of this research