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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
|
| pubmed:dateCreated |
1994-11-18
|
| pubmed:abstractText |
The applicability of bioelectric impedance analysis (BIA) as a measure of body composition in children and young adults in both health and disease was studied in 155 subjects (5 mo to 54 yr of age) who were healthy (n = 21), had cystic fibrosis (n = 16), or had end-stage liver disease with variable clinical ascites or edema (n = 62). BIA and phase angle measured at a frequency of 50 kHz between the wrist and contralateral ankle by use of a tetrapolar measuring technique was compared with fat-free mass (FFM) estimated from skin-fold (SK) thickness measurements (n = 57), and body cell mass (grams potassium) measured by total-body potassium (TBK) counting. In a subgroup of subjects with end-stage liver disease, BIA was compared with total-body water measured by deuterium dilution (n = 21). High levels of correlation were found in healthy subjects, cystic fibrosis patients, and patients with end-stage liver disease when impedance (height2/resistance) was used to predict TBK (r = 0.96, 0.96, 0.98, respectively), and SK was used to predict FFMs (r = 0.96, 0.99, 0.90, respectively), by linear regression analysis. However, less satisfactory relationships were found when the methods were more appropriately analyzed with an estimated limits of agreement procedure (1 SD = 8.5, 5.0, 27.7% [TBK] and 9.4, 6.7, 23.0% [FFMs], respectively). A poor level of technique agreement (1 SD = 14%) was found when this method was compared with total-body water measured by isotope dilution in patients with liver disease.(ABSTRACT TRUNCATED AT 250 WORDS)
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:issn |
0899-9007
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
10
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
221-4
|
| pubmed:dateRevised |
2006-11-15
|
| pubmed:meshHeading |
pubmed-meshheading:7919673-Adolescent,
pubmed-meshheading:7919673-Adult,
pubmed-meshheading:7919673-Body Composition,
pubmed-meshheading:7919673-Body Water,
pubmed-meshheading:7919673-Child,
pubmed-meshheading:7919673-Child, Preschool,
pubmed-meshheading:7919673-Cystic Fibrosis,
pubmed-meshheading:7919673-Deuterium,
pubmed-meshheading:7919673-Electric Impedance,
pubmed-meshheading:7919673-Female,
pubmed-meshheading:7919673-Humans,
pubmed-meshheading:7919673-Infant,
pubmed-meshheading:7919673-Liver Diseases,
pubmed-meshheading:7919673-Male,
pubmed-meshheading:7919673-Middle Aged,
pubmed-meshheading:7919673-Potassium,
pubmed-meshheading:7919673-Regression Analysis,
pubmed-meshheading:7919673-Skinfold Thickness
|
| pubmed:articleTitle |
Clinical applicability of bioelectric impedance to measure body composition in health and disease.
|
| pubmed:affiliation |
Royal Children's Hospital, Department of Gastroenterology, Queensland, Australia.
|
| pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|