October 1, 1998Journal of Hypertension
Normal values for ambulatory blood pressure and differences between casual blood pressure and ambulatory blood pressure
Why the study?
How does 24 h ambulatory blood pressure compare to casual blood pressure in a general population?
Population
1,835 Danish men and women (aged 41-42, 51-52, 61-62 or 71-72 years) not on antihypertensive treatment.
Comparison
24 h ambulatory blood pressure monitoring vs Casual blood pressure measurement
Design
Cross-sectional
Authors
Discussion
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Member takes
Implication
High casual BP predicts lower ambulatory readings; leaves open independent derivation of ambulatory BP thresholds.
Structured PICO
How does 24 h ambulatory blood pressure compare to casual blood pressure in a general population?
P
Population
1,835 Danish men and women (aged 41-42, 51-52, 61-62 or 71-72 years) not on antihypertensive treatment.
I
Intervention
24 h ambulatory blood pressure monitoring (Takeda TM-2421)
C
Comparator
Casual blood pressure measurement (standard mercury sphygmomanometer)
O
Outcome
Normal values for 24 h ambulatory blood pressure and relationship to casual blood pressuresurrogate
Ambulatory blood pressure represents a regression towards the mean compared to casual blood pressure, indicating that normal limits for ambulatory BP should not be derived from correlations with casual BP.
Cite This Study
Rasmussen et al. (1998) studied this question.