Differences Between the Fourth and Fifth Korotkoff Phases Among Children and Adolescents
Why the study?
Does the fourth Korotkoff phase (K4) compared to the fifth Korotkoff phase (K5) provide a better indicator of diastolic blood pressure and predictor of adult hypertension in children and adolescents?
Population
11,525 youth aged 5-17, with a longitudinal subcohort of 2,156 children re-examined after age 25 years
Comparison
Diastolic blood pressure measurement using the… vs Diastolic blood pressure measurement using the…
Design
Cohort
Follow-up
re-examined after age 25 years
Authors
Discussion
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Member takes
Implication
May favor K4 for pediatric DBP assessment; hypothesis-generating for guidelines, pending prospective validation.
Structured PICO
Does the fourth Korotkoff phase (K4) compared to the fifth Korotkoff phase (K5) provide a better indicator of diastolic blood pressure and predictor of adult hypertension in children and adolescents?
P
Population
11,525 youth aged 5-17, with a longitudinal subcohort of 2,156 children re-examined after age 25 years
I
Intervention
Diastolic blood pressure measurement using the fourth Korotkoff phase (K4)
C
Comparator
Diastolic blood pressure measurement using the fifth Korotkoff phase (K5)
O
Outcome
Interobserver variability and association with adult blood pressure levels and hypertensionsurrogate
The fourth Korotkoff phase (K4) is a more reliable and predictive measure of diastolic blood pressure in children than the fifth phase (K5), as it shows less interobserver variability and stronger association with adult hypertension.
Cite This Study
Freedman et al. (2014) studied this question.