Valores de referencia de flujo espiratorio pico en niños y adolescentes sanos en la ciudad de Bogotá
Valores de referencia de flujo espiratorio pico en niños y adolescentes sanos en la ciudad de Bogotá
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Background. The use of peak flow meters has been widely adopted for monitoring patients with asthma. The availability of appropriate reference values is essential for an appropriate interpretation of the results of any pulmonary function test. However, to the best of our knowledge, there is no information regarding peak expiratory flow (PEF) reference values in healthy children and adolescents in Bogota.
Objective. A study was performed to determine reference values for PEF in healthy children and adolescents in Bogota
Design. An observational analytical cross-sectional study.
Patients and methods. 118 healthy children and adolescents, aged 4 to 18 years, from our outpatient clinic, recorded peak expiratory flow rates between October 2002 and February 2003. Various regression models were applied to explain the PEF values and for each sex separately.
Results. Prediction equations for PEF for both sexes are presented, with height as the predictor variable. Plots of PEF vs height are presented too. Compared with data from Godfrey's prediction equations, PEF values showed a similar pattern in smaller children of both sexes, but lower values were found as height increased.
Conclusions. Our findings support the conclusion that different mechanisms may be the main determinants of PEF values in small and tall children.
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