Risk of stroke among patients with cerebral palsy: a population-based cohort study

Dev Med Child Neurol. 2017 Jan;59(1):52-56. doi: 10.1111/dmcn.13180. Epub 2016 Jun 27.

Abstract

Aim: The aim of the study was to investigate the risk of stroke in patients with cerebral palsy (CP), based on nationwide data in Taiwan.

Method: This prospective cohort study was comprised of patients recorded on the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005) who had a diagnosis of CP (n=1975) in records between 1 January 2004 and 31 December 2007. A comparison group (1:5) drawn from the same database was matched for age and sex (n=9875). Each patient was tracked by data until the development of stroke or the end of 2008. Cox proportional-hazards regression analysis was used to evaluate the hazard ratios after adjusting for potential confounding factors.

Results: Patients with CP were more likely to suffer stroke than the comparison population, after adjusting for potential confounding factors (adjusted hazard ratio: 2.17; 95% confidence interval [CI]: 1.74-2.69). The hazard ratio of stroke was 4.78 (95% CI: 3.18-7.17) and 1.57 (95% CI: 1.20-2.05) for patients with CP aged 50 years and under, and over 50 years respectively.

Interpretation: Cerebral palsy is a risk factor or marker for stroke that is independent of traditional stroke risk factors. Further research in this area is warranted.

MeSH terms

  • Adolescent
  • Adult
  • Age Distribution
  • Age Factors
  • Aged
  • Aged, 80 and over
  • Cerebral Palsy / epidemiology*
  • Cohort Studies
  • Community Health Planning
  • Female
  • Humans
  • Male
  • Middle Aged
  • National Health Programs / statistics & numerical data
  • Statistics, Nonparametric
  • Stroke / epidemiology*
  • Stroke / etiology*
  • Taiwan / epidemiology
  • Young Adult