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Thorax. 1993 Aug;48(8):803-8.

Lung function in white children aged 4 to 19 years: II--Single breath analysis and plethysmography.

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  • 1Department of Paediatric Respiratory Medicine, Royal Brompton National Heart and Lung Hospital, London.

Abstract

OBJECTIVE:

A study was performed to determine reference ranges for whole body plethysmographic gas volumes and single breath gas transfer in healthy prepubertal and pubertal schoolchildren.

METHODS:

The study was performed in 772 white London schoolchildren (455 male) who were clinically examined, assessed auxologically and, in 63% of cases, pubertally staged. Regression equations for the calculation of standard deviation scores were derived.

RESULTS:

Male lung function variables showed a discontinuous pattern of increase with standing height. Linear increases until puberty were followed by a sudden pubertal rise and a further increase with height which was more marked than before puberty. Correction for varying thoracic dimensions eliminated these changes. In females a smoother curvilinear relationship was observed with no correction possible for thoracic size.

CONCLUSIONS:

Male puberty leads to profound changes in pulmonary function mostly related to thoracic size, an effect not observed in females.

PMID:
8211869
PMCID:
PMC464705
[PubMed - indexed for MEDLINE]
Free PMC Article
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