October 1, 1982JAMA
A Representative Value for Whole-Day BP Monitoring
Why the study?
Does a two-hour morning average of serial blood pressure readings better predict 24-hour average blood pressure compared to three readings or a single reading at 8 AM in hypertensive patients?
Population
n=6 hypertensive patients
Comparison
Average of serial blood pressure readings… vs Three readings or a single reading taken at 8 AM
Design
Cross-sectional
Follow-up
24 hours
Authors
Discussion
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Member takes
Implication
Two-hour averages may better approximate 24-hour BP than fewer readings; leaves open impact on outcomes or practice change.
Structured PICO
Does a two-hour morning average of serial blood pressure readings better predict 24-hour average blood pressure compared to three readings or a single reading at 8 AM in hypertensive patients?
P
Population
n=6 hypertensive patients
I
Intervention
Average of serial blood pressure readings obtained during a two-hour morning period
C
Comparator
Three readings or a single reading taken at 8 AM
O
Outcome
Correlation of systolic and diastolic blood pressure averages with 24-hour average blood pressuresurrogate
An average of serial blood pressure readings over a two-hour morning period is a more consistent predictor of whole-day blood pressure than a single conventional reading.
Cite This Study
Michael A. Weber (1982) studied this question.