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Related Experiment Videos

Does race predict stroke readmission? An analysis using the truncated negative binomial model.

Byron S Kennedy1

  • 1Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, CT 06511, USA. byron.kennedy@yale.edu

Journal of the National Medical Association
|June 2, 2005
PubMed
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Blacks have a higher risk of stroke recurrence than whites, particularly between ages 65-74. This indicates a need for targeted interventions for Black stroke survivors to reduce readmission rates.

Area of Science:

  • Neurology
  • Public Health
  • Epidemiology

Background:

  • Stroke incidence is higher in Black populations compared to White populations.
  • The relative risk of stroke recurrence between Black and White individuals remains under-researched.
  • Understanding disparities in stroke recurrence is crucial for public health interventions.

Purpose of the Study:

  • To investigate the relative risk of stroke recurrence in Black versus White individuals.
  • To identify age-specific risk factors for stroke readmission.
  • To evaluate the effectiveness of statistical models for analyzing stroke recurrence data.

Main Methods:

  • Utilized statewide inpatient data from California (2000) for 4,784 Black and 33,684 White patients with stroke admissions.

Related Experiment Videos

  • Calculated age- and sex-adjusted incidence rates for index stroke admissions.
  • Applied various statistical models, selecting the truncated negative binomial (TNB) model for age-specific multivariate analyses of stroke readmissions.

    • Main Results:

    • The age- and sex-adjusted incidence rate for the index stroke admission was significantly higher for Blacks (366/100,000) than Whites (204/100,000).
    • The truncated negative binomial (TNB) model demonstrated a strong fit for the data and validated findings from prior international studies.
    • Black individuals aged 65-74 exhibited a 40% higher risk of stroke readmission compared to White individuals, after adjusting for patient and hospital factors.

    Conclusions:

    • Black individuals represent a high-risk group for recurrent stroke, necessitating tailored interventions.
    • The study highlights the importance of age-specific risk assessment in stroke recurrence.
    • Future research on recurrent stroke should incorporate age-specific TNB models for more accurate analysis.