January 1, 1984International Journal of Epidemiology
Measured Differences between Fourth and Fifth Phase Diastolic Blood Pressures in 4885 Adults: Implications for Blood Pressure Surveys
Population
4885 adults from risk factor surveys
Design
Cross-sectional
Authors
Discussion
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Member takes
Implication
D4-D5 differences are smaller than assumed and often absent; leaves open effects on routine diastolic BP classification accuracy.
Structured PICO
P
Population
4885 adults from risk factor surveys
I
Intervention
Measurement of fourth (D4) and fifth (D5) phase diastolic blood pressures using random-zero sphygmomanometers
O
Outcome
Difference between fourth (D4) and fifth (D5) phase diastolic blood pressures (D4-D5)surrogate
The difference between fourth and fifth phase diastolic blood pressures is generally smaller than commonly believed, with two-thirds of measurements showing no difference.
Cite This Study
Folsom et al. (1984) studied this question.