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J Perinat Med. 1997;25(1):111-4.

The relationship of ponderal index and other measurements to birthweight in preterm neonates.

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Division of Obstetrics, Gynaecology, St. Bartholomew's Hospital, Royal London School of Medicine and Dentistry, London, U.K.


The objective was to determine the relationship between birthweight and anthropometric indices (PI and MAC/ OFC) in preterm infants. A group of 163 singleton preterm neonates born at 24-36 weeks were examined. Measurements were made of crown-heel length, midarm circumference, and occipito-frontal circumference. Birthweights were calculated as multiples of the mean (MoMs) for a given stage of gestation. There was a highly significant correlation between gestational age and MAC/OFC (p < 0.0001) but none with ponderal index. There was a significant correlation between weight expressed as multiples of the mean and both ponderal index (p < 0.008) and MAC/OFC (p < 0.0001). This relationship between birthweight and anthropometric indices suggests that measurement of the ponderal index does not provide a useful index of intrauterine nutrition.

[Indexed for MEDLINE]

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