Sex differences in stroke co-morbidities.

Area of Science:

• Neurology
• Cardiovascular Disease
• Sex Differences in Medicine

Background:

• Biological differences between males and females create distinct disease risk profiles.
• Ischemic stroke prevalence and outcomes are notably worse in older females compared to males and younger females.
• Estrogen loss post-menopause is a key suspected factor, but other comorbidities and risk factors also contribute.

Purpose of the Study:

• To explore comorbidities and sociodemographic factors contributing to higher ischemic stroke prevalence and poorer outcomes in older females.
• To highlight the critical need for considering sex as a biological variable in stroke research.

Main Methods:

• This is a review article, synthesizing existing research on sex-specific factors in ischemic stroke.
• Analysis of epidemiological data, clinical studies, and biological mechanisms related to sex differences in stroke.

Main Results:

• Older females exhibit higher ischemic stroke prevalence and worse outcomes than males and younger females.
• Risk factors like hypertension, atrial fibrillation, diabetes, and smoking disproportionately affect females.
• Sex-specific factors (oral contraceptives, menopause) and atypical stroke symptoms in females can delay diagnosis and treatment.

Conclusions:

• Multiple factors, including hormonal changes, comorbidities, atypical symptom presentation, and sociodemographic aspects, contribute to the higher burden of ischemic stroke in older females.
• Sex must be recognized as a crucial biological variable in stroke research and clinical practice to improve outcomes.