Why the study?
Does the winter season increase office, home, and ambulatory blood pressure compared to summer in patients with essential hypertension?
Population
50 outpatients with essential hypertension, mean age 59.3 +/- 1.1 years, 26 women and 24 men.
Comparison
Winter season vs Summer season
Design
Cohort, The order of ambulatory blood pressure monitoring was randomized.
Follow-up
1 year (recorded in 1993)
Authors
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Winter BP elevations may support seasonal monitoring in hypertension; leaves open outcome impacts and adjusted targets.
Does the winter season increase office, home, and ambulatory blood pressure compared to summer in patients with essential hypertension?
Office, home, and daytime ambulatory blood pressures are higher in winter than summer in patients with essential hypertension, though average 24h BP may not vary significantly due to unchanged night-time BP.
Minami et al. (1996) studied this question.
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