Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1988-11-21
pubmed:abstractText
The reproducibility and sources of variation in ankle and brachial systolic pressures were determined for a reactive hyperaemia test used to assess peripheral arterial disease in the lower limbs. Thirty-six subjects had repeat measurements taken by four observers on two separate days using a Doppler probe and random zero sphygmomanometer. Ankle pressures were measured before and after 4 min of arterial occlusion above the knee. The 95 per cent confidence limits for a postocclusion reduction in pressure was approximately +/- 25 mmHg and for the postocclusion ankle-brachial ratio was +/- 20 per cent. The corresponding figures for the mean of four measurements taken by two observers on 2 days was approximately +/- 17 mmHg and +/- 13 per cent. In patients with vascular disease analysis of variance showed that the greatest sources of variation in the postocclusion ankle-brachial ratio were the 'biological' variations between subjects and between legs. But for postocclusion reductions in pressure, variability due to observers and repeat readings was as important as the 'biological' differences between subjects and legs. Thus, in respect of variability, the ratio may be a better parameter to detect differences between subjects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0007-1323
pubmed:author
pubmed:issnType
Print
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
743-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Reproducibility of reactive hyperaemia test in the measurement of peripheral arterial disease.
pubmed:affiliation
Department of Community Medicine, University of Edinburgh, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't