Nocturnal Hemodynamics in Somali Americans: Implications for Cardiovascular Risk.

Area of Science:

• Cardiovascular Health
• Health Disparities
• Population Health

Background:

• Cardiovascular health disparities are documented in various minority groups.
• The cardiovascular health of Somali Americans, a distinct subpopulation, is not well understood.
• Ambulatory blood pressure (BP) monitoring is crucial for assessing 24-hour BP patterns and cardiovascular risk.

Purpose of the Study:

• To investigate 24-hour BP and heart rate (HR) profiles in young Somali Americans.
• To compare the BP and HR patterns of Somali Americans with those of White participants.
• To identify potential cardiovascular health disparities in the Somali American community.

Main Methods:

• Recruited 50 participants (25 Somali Americans, 25 White adults).
• Utilized 24-hour ambulatory BP monitoring with recordings every 20 minutes.
• Quantified daytime (10 a.m. - 8 p.m.) and nighttime (12 a.m. - 6 a.m.) BP, HR, and ambulatory arterial stiffness.

Main Results:

• Daytime BP and HR were similar between Somali Americans and White participants.
• Nighttime BP was similar, but Somali Americans had higher nocturnal HR (p = 0.013).
• Somali Americans exhibited attenuated nocturnal dipping in diastolic BP (p = 0.038) and HR (p = 0.007), along with higher ambulatory arterial stiffness (p = 0.045).

Conclusions:

• Young Somali Americans display unique 24-hour hemodynamic profiles compared to White adults.
• Findings highlight differences in ambulatory arterial stiffness, nocturnal BP, and nocturnal HR.
• These results suggest potential cardiovascular health disparities and future risk in the Somali American population.