JOURNAL ARTICLE

Peak expiratory flow values are higher in older and taller healthy male children: an observational study

Fernanda R Radziavicius, Lourdes C Martins, Camilla C Radziavicius, Vitor E Valenti, Arnaldo A F Siqueira, Cíntia G de Souza, Luiz C de Abreu
Clinical and Investigative Medicine. Médecine Clinique et Experimentale 2010, 33 (2): E92
20370996

PURPOSE: Peak expiratory flow (PEF) was measured in healthy children aged five to ten years in order to provide baseline values and to determine correlations between PEF and factors such as gender, age and type of school.

METHODS: After the Ethical Committee of Research in Human of the School of Medicine of ABC - FMABC approval, PEF and height were measured in 1942 children between five and ten years old from nine public schools and nine private schools throughout São Bernardo do Campo City. PEF was measured using the Mini-Wright Peak Flow Meter (Clement Clarke International Ltd.) and. height was measured using a Sanny professional stadiometer .

RESULTS: Significant differences were found in values for PEF: higher values were seen in older students in comparison with younger students, in males in comparison with females and in students from private schools in comparison with public schools, with average values ranging from 206 L/min to 248 L/min,. Linear correlations were seen for PEF values with both height and age (Spearman Coefficient).

CONCLUSIONS: Differences were seen for PEF between genders and between types of school, and a linear correlation was seen for PEF with both age and height in healthy children from five to ten years old.

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