2007
DOI: 10.1016/j.rmed.2007.07.005
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Interrupter resistance short-term repeatability and bronchodilator response in preschool children

Abstract: In the present study, Rint short-term repeatability was similar to that of previous studies. Similar Rint repeatability in coughers and in asthmatic children favored the use of asthmatic CR for both populations, and a -35% cut-off as a positive BDR. In 20% of study children, baseline Rint variability could influence the significance of the BDR. In order to improve assessment of BDR using Rint, further studies are needed (1) to compare the variability of Rint to other resistance measurement techniques and (2) t… Show more

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Cited by 34 publications
(27 citation statements)
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“…We used the Rint technique, which has been shown to be useful in objectively assessing respiratory impairment in preschool children [14,15]. The test has a good short-term repeatability [24] and hence one measurement of Rint can be used in studies assessing longterm exposure effects. Our study suggests that some of the associations reported in cross-sectional studies between ambient air pollution and lung function in schoolchildren may already be manifest at an earlier age.…”
Section: Discussionmentioning
confidence: 99%
“…We used the Rint technique, which has been shown to be useful in objectively assessing respiratory impairment in preschool children [14,15]. The test has a good short-term repeatability [24] and hence one measurement of Rint can be used in studies assessing longterm exposure effects. Our study suggests that some of the associations reported in cross-sectional studies between ambient air pollution and lung function in schoolchildren may already be manifest at an earlier age.…”
Section: Discussionmentioning
confidence: 99%
“…We collected clinical and demographic data by structured interview and chart review. Lung function was assessed before and after inhaling salbutamol 400 mg; flow-volume curves were used in children o5 yrs of age, and resistance of the respiratory system measured by the interrupter technique was used for children ,5 yrs of age (Microrint1; Micro Medical Ltd, Rochester, UK) [17], according to European Respiratory Society/American Thoracic Society guidelines. Results were expressed as z-scores.…”
Section: Methodsmentioning
confidence: 99%
“…While data on reference values are limited, these methods are reproducible and useful in the assessment of the BDR and bronchial responsiveness [42][43][44][45][46][47][48]. The cut-off values to detect significant differences between measurements are, however, variable [49,50]. Longitudinal assessment of Rint did not improve the prediction of asthma symptoms until the age of 8 years [51].…”
Section: Measurement Of Airway Resistancementioning
confidence: 99%