Key result
Winter season was associated with a decrease in reverse dippers in both Irish and Singaporean hypertensive patients, and an increase in nocturnal diastolic pressure (3.37 mm Hg) in Irish patients.
Why the study?
Do racial differences and seasonal variations affect nocturnal blood pressure dipping patterns in hypertensive patients?
Population
220 hypertensive patients, comprising half White patients from Ireland and half Asian patients from Singapore.
Design
Cohort
Authors
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Seasonal BP monitoring may merit consideration in hypertensives; hypothesis-generating for racial differences and chronotherapy.
Observational (n=220)
Yes
Do racial differences and seasonal variations affect nocturnal blood pressure dipping patterns in hypertensive patients?
Mean Difference: 3.37 (95% CI 0.72–6.03)
p-value: p=<0.05
Racial differences and seasonal variations significantly influence nocturnal blood pressure dipping patterns, suggesting a need for tailored chronotherapy in hypertensive patients.
Wong et al. (2015) conducted an observational in Hypertension (n=220). Winter season vs. Summer season was evaluated on Increase in nocturnal diastolic pressure (MD 3.37, 95% CI 0.72 to 6.03, p=<0.05). Winter season was associated with a decrease in reverse dippers in both Irish and Singaporean hypertensive patients, and an increase in nocturnal diastolic pressure (3.37 mm Hg) in Irish patients.
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