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Risk factors for intracerebral hemorrhage in a pooled prospective study

Jared D Sturgeon1, Aaron R Folsom, W T Longstreth

  • 1Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, 1300 S Second Street, Suite 300, Minneapolis, MN 55454-1015, USA.

Stroke
|September 1, 2007
PubMed

Insights

Older age, African-American ethnicity, hypertension, and lower LDL cholesterol and triglycerides are key risk factors for intracerebral hemorrhage (ICH). These findings aid in understanding and preventing brain bleeds.

Area of Science:

  • Neurology
  • Epidemiology
  • Cardiovascular Science

Background:

  • Intracerebral hemorrhage (ICH) risk factors lack consistent prospective data.
  • Existing studies show conflicting results regarding ICH predictors.

Purpose of the Study:

  • To identify risk factors for intracerebral hemorrhage (ICH).
  • To analyze ICH predictors using pooled data from the Atherosclerosis Risk in Communities (ARIC) and Cardiovascular Health Study (CHS) cohorts.

Main Methods:

  • Pooled data from ARIC (15,792 participants, 45-64 years) and CHS (5,888 participants, 65+ years).
  • Follow-up for incident stroke events over 263,489 person-years.
  • Multivariable analysis of vascular risk factors and ICH incidence.

Main Results:

  • 135 incident intracerebral hemorrhage (ICH) events were recorded.
  • Positive associations found for older age, African-American ethnicity, and hypertension.
  • Inverse relationships observed for low-density lipoprotein cholesterol (LDL-C) and triglycerides.
  • Severe hypertension (SBP ≥160 mmHg or DBP ≥110 mmHg) increased ICH rate 5.55-fold.
  • No significant associations found for sex, smoking, alcohol, BMI, waist-to-hip ratio, waist circumference, or diabetes.

Conclusions:

  • Key risk factors for intracerebral hemorrhage (ICH) include older age, African-American ethnicity, and hypertension.
  • Lower levels of LDL-C and triglycerides were also associated with increased ICH risk.
  • Findings contribute to a better understanding of ICH etiology and prevention strategies.
Abstract

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