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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1996-2-28
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pubmed:abstractText |
The use of fourth phase Korotkoff sound (K4) versus fifth phase Korotkoff sound (K5) for the determination of diastolic blood pressure (DBP) has been a subject of controversy since the indirect method of determining arterial blood pressure was described. Using data from the Bogalusa Heart Study, we evaluated the differences between K4 and K5 (K4-K5) from 4633 subjects 5 to 30 years of age examined between 1987 and 1991. The overall mean difference between K4 and K5 was 9.9 +/- 5.6 mm Hg (mean +/- SD). The average difference was highest in 5 to 8 year olds, where it measured 12.3 +/- 5.5 mm Hg. The average K4-K5 difference fell with increasing age and reached a value of 6.3 +/- 2.6 mm Hg by 25 years of age. For all race/sex groups, the youngest two age groups differed statistically from the oldest age groups in K4-K5 difference (P < .006). There were significant differences between blacks and whites (P < .015) and between men and women (P < .001) for subjects between 13 and 17 years of age. Additional analyses were performed with individuals having K5 = 0 added to yield an expanded population of 5117 persons. Overall, 9.5% had at least one of six measurements of K5 = 0 and most were young subjects: 27% of children 5 to 8 years and 13% of children 9 to 12 years. We conclude that by age 15 there may be no relevant clinical difference in K4-K5. However, in children, K4 and K5 should be recorded and K4 is a more reproducible measure of diastolic blood pressure.
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pubmed:grant | |
pubmed:commentsCorrections | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0895-7061
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1083-9
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pubmed:dateRevised |
2009-2-24
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pubmed:meshHeading |
pubmed-meshheading:8554731-Adolescent,
pubmed-meshheading:8554731-Adult,
pubmed-meshheading:8554731-Age Factors,
pubmed-meshheading:8554731-Blood Pressure Determination,
pubmed-meshheading:8554731-Cardiovascular Diseases,
pubmed-meshheading:8554731-Child,
pubmed-meshheading:8554731-Child, Preschool,
pubmed-meshheading:8554731-Diastole,
pubmed-meshheading:8554731-Female,
pubmed-meshheading:8554731-Humans,
pubmed-meshheading:8554731-Hypertension,
pubmed-meshheading:8554731-Longitudinal Studies,
pubmed-meshheading:8554731-Louisiana,
pubmed-meshheading:8554731-Male,
pubmed-meshheading:8554731-Risk Factors
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pubmed:year |
1995
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pubmed:articleTitle |
Comparison of fourth and fifth Korotkoff diastolic blood pressures in 5 to 30 year old individuals. The Bogalusa Heart Study.
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pubmed:affiliation |
Tulane Center for Cardiovascular Health, Tulane School of Public Health & Tropical Medicine, New Orleans, LA 70112-2824, USA.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.
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