Abstract
Aim - To examine the reproducibility of crown-heel length measurement; the precision and reproducibility of knee-heel length measurement; and the association between the two in healthy preterm infants. Methods - Paired crown-heel and knee-heel lengths were measured on 172 occasions by three observers in 43 preterm infants between 205 and 458 days of postconceptional age. Results - Crown-heel length (CHL) measurement was highly reproducible, with a coefficient of variation (CV) of 0.41%. Knee-heel length (KHL) measurement was relatively precise (CV 0.78%), but less reproducible (intra- observer CV 1.77%, intra-observer CV 2.11%), especially in larger infants. The association between KHL and CHL was not consistent and varied with age. KHL was a poor predictor of CHL, with a 95% predictive interval of ± 27.5 mm. Conclusions - KHL was less reproducible than CHL, especially in larger infants, and a poor predictor of CHL.
| Original language | English (US) |
|---|---|
| Journal | Archives of Disease in Childhood: Fetal and Neonatal Edition |
| Volume | 81 |
| Issue number | 1 |
| State | Published - Jul 1999 |
| Externally published | Yes |
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Keywords
- Crown-heel length
- Knee-heel length
- Knemometry
- Linear growth
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health
Cite this
Knee-heel length measurement in healthy preterm infants. / Griffin, Ian J.; Pang, Naomi M.; Perring, Jeffery; Cooke, Richard J.
In: Archives of Disease in Childhood: Fetal and Neonatal Edition, Vol. 81, No. 1, 07.1999.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Knee-heel length measurement in healthy preterm infants
AU - Griffin, Ian J.
AU - Pang, Naomi M.
AU - Perring, Jeffery
AU - Cooke, Richard J.
PY - 1999/7
Y1 - 1999/7
N2 - Aim - To examine the reproducibility of crown-heel length measurement; the precision and reproducibility of knee-heel length measurement; and the association between the two in healthy preterm infants. Methods - Paired crown-heel and knee-heel lengths were measured on 172 occasions by three observers in 43 preterm infants between 205 and 458 days of postconceptional age. Results - Crown-heel length (CHL) measurement was highly reproducible, with a coefficient of variation (CV) of 0.41%. Knee-heel length (KHL) measurement was relatively precise (CV 0.78%), but less reproducible (intra- observer CV 1.77%, intra-observer CV 2.11%), especially in larger infants. The association between KHL and CHL was not consistent and varied with age. KHL was a poor predictor of CHL, with a 95% predictive interval of ± 27.5 mm. Conclusions - KHL was less reproducible than CHL, especially in larger infants, and a poor predictor of CHL.
AB - Aim - To examine the reproducibility of crown-heel length measurement; the precision and reproducibility of knee-heel length measurement; and the association between the two in healthy preterm infants. Methods - Paired crown-heel and knee-heel lengths were measured on 172 occasions by three observers in 43 preterm infants between 205 and 458 days of postconceptional age. Results - Crown-heel length (CHL) measurement was highly reproducible, with a coefficient of variation (CV) of 0.41%. Knee-heel length (KHL) measurement was relatively precise (CV 0.78%), but less reproducible (intra- observer CV 1.77%, intra-observer CV 2.11%), especially in larger infants. The association between KHL and CHL was not consistent and varied with age. KHL was a poor predictor of CHL, with a 95% predictive interval of ± 27.5 mm. Conclusions - KHL was less reproducible than CHL, especially in larger infants, and a poor predictor of CHL.
KW - Crown-heel length
KW - Knee-heel length
KW - Knemometry
KW - Linear growth
UR - http://www.scopus.com/inward/record.url?scp=0033022548&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033022548&partnerID=8YFLogxK
M3 - Article
C2 - 10375363
AN - SCOPUS:0033022548
VL - 81
JO - Archives of Disease in Childhood: Fetal and Neonatal Edition
JF - Archives of Disease in Childhood: Fetal and Neonatal Edition
SN - 1359-2998
IS - 1
ER -