Why Do South Asians Have High Risk for CAD?

Area of Science:

• Cardiology
• Epidemiology
• Public Health

Background:

• South Asians exhibit a disproportionately higher risk for coronary artery disease (CAD).
• This elevated risk is attributed to a complex interplay of pathophysiological and life course-related factors.
• Understanding these diverse risk factors is crucial for targeted prevention strategies.

Purpose of the Study:

• To synthesize existing evidence on coronary artery disease (CAD) risk factors specifically within the South Asian population.
• To explore the contribution of both conventional and unconventional risk factors to CAD in South Asians.
• To highlight the importance of a life course approach in understanding CAD etiology in this demographic.

Main Methods:

• A comprehensive literature search was conducted to gather relevant studies.
• Qualitative synthesis was employed to analyze and present the evidence.
• The review focused on identifying and evaluating risk factors for CAD in South Asians.

Main Results:

• Conventional risk factors significantly contribute to the elevated CAD risk observed in South Asians.
• Life course factors, including education, socioeconomic status, fetal programming, and early life influences, also play a substantial role.
• Evidence regarding unconventional risk factors is emerging but requires further investigation through larger studies.

Conclusions:

• While conventional factors explain a significant portion of CAD risk, life course influences are critical for a complete understanding.
• A life course perspective is essential for developing effective interventions for South Asians.
• Further large-scale, well-designed epidemiological studies are necessary to fully elucidate CAD risk in this population.