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North African reference equation for peak nasal inspiratory flow

Published online by Cambridge University Press:  28 February 2011

M Denguezli Bouzgarou ,
H Ben Saad ,
A Chouchane ,
I Ben Cheikh ,
A Zbidi ,
J F Dessanges  and
Z Tabka
M Denguezli Bouzgarou*
Affiliation:
Laboratory of Physiology, Faculty of Medicine, Sousse ‘Ibn El Jazzar’, Farhat Hached Hospital, Sousse, Tunisia Physiopathological Exploration of Chronic Cardiorespiratory and Metabolic Disease Research Unit, Farhat Hached Hospital, Sousse, Tunisia
H Ben Saad
Affiliation:
Laboratory of Physiology, Faculty of Medicine, Sousse ‘Ibn El Jazzar’, Farhat Hached Hospital, Sousse, Tunisia Physiology and Functional Exploration Service, Farhat Hached Hospital, Sousse, Tunisia
A Chouchane
Affiliation:
Laboratory of Physiology, Faculty of Medicine, Sousse ‘Ibn El Jazzar’, Farhat Hached Hospital, Sousse, Tunisia Physiopathological Exploration of Chronic Cardiorespiratory and Metabolic Disease Research Unit, Farhat Hached Hospital, Sousse, Tunisia
I Ben Cheikh
Affiliation:
Laboratory of Physiology, Faculty of Medicine, Sousse ‘Ibn El Jazzar’, Farhat Hached Hospital, Sousse, Tunisia Physiopathological Exploration of Chronic Cardiorespiratory and Metabolic Disease Research Unit, Farhat Hached Hospital, Sousse, Tunisia
A Zbidi
Affiliation:
Laboratory of Physiology, Faculty of Medicine, Sousse ‘Ibn El Jazzar’, Farhat Hached Hospital, Sousse, Tunisia Physiopathological Exploration of Chronic Cardiorespiratory and Metabolic Disease Research Unit, Farhat Hached Hospital, Sousse, Tunisia Physiology and Functional Exploration Service, Farhat Hached Hospital, Sousse, Tunisia
J F Dessanges
Affiliation:
Respiratory Functional Exploration Service, Cochin Hospital, Paris, France
Z Tabka
Affiliation:
Laboratory of Physiology, Faculty of Medicine, Sousse ‘Ibn El Jazzar’, Farhat Hached Hospital, Sousse, Tunisia Physiopathological Exploration of Chronic Cardiorespiratory and Metabolic Disease Research Unit, Farhat Hached Hospital, Sousse, Tunisia Physiology and Functional Exploration Service, Farhat Hached Hospital, Sousse, Tunisia
*
Address for correspondence: Dr Meriam Denguezli Bouzgarou, Faculty of Medicine of Sousse ‘Ibn El Jazzar’, Mohamed Karoui St, 4002 Sousse, Tunisia Fax: 0021673214513 E-mail: [email protected]
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Abstract

Aim:

To assess, in healthy North African subjects, the applicability and reliability of a previously published reference equation and normal values for peak nasal inspiratory flow, and to calculate a peak nasal inspiratory flow reference equation in this population.

Subjects and methods:

Anthropometric data were recorded in 212 volunteers (100 females and 112 males) aged 13–27 years. Peak nasal inspiratory flow was measured several times. Univariate and multiple linear regression analyses were used to determine the reference equation.

Results:

The previously published reference equation and normal values did not reliably predict peak nasal inspiratory flow in the study population. In our subjects, the reference equation (r2 = 30 per cent) for peak nasal inspiratory flow (l/min) was 1.4256 × height (m) + 33.0215 × gender (where 0 = female, 1 = male) + 1.4117 × age (years) − 136.6778. The lower limit of normal was calculated by subtracting from the peak nasal inspiratory flow reference value (84 l/min).

Conclusion:

This is the first published study to calculate a reference equation for peak nasal inspiratory flow in North African subjects. This equation enables objective evaluation of nasal airway patency in patients of North African origin.

Keywords

Nasal CavityEthnic GroupsNasal Obstruction
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 6 , June 2011 , pp. 595 - 602
Copyright
Copyright © JLO (1984) Limited 2011

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