Comparison of Mini-Wright Peak Flow Meter and Microplus Pocket Spirometer in Measuring Peak Expiratory Flow Rate / 소아알레르기및호흡기학회지
Pediatric Allergy and Respiratory Disease
;
: 178-183, 1999.
Article
in Korean
| WPRIM
| ID: wpr-58627
ABSTRACT
PURPOSE:
Peak expiratory flow rate (PEFR) monitoring plays an important role in the diagnosis of airway obstruction and management of patients with bronchial asthma. This study compared the PEFR taken by a Microplus pocket spirometer and mini-Wright peak flow meter by assessing the extent of agreement between the instruments and the repeatability of measurements with each instrument.METHODS:
Eighty healthy children (age 11-12 years, 43 females, 37 males) performed three PEFR maneuvers on the Microplus pocket spirometer and on the mini-Wright peak flow meter in a random order. Agreement and reproducibility between the two instruments were assessed by the statistical methods proposed by Bland and Altman.RESULTS:
Seventy six (95%) of the PEFR taken by the mini-Wright peak flow meter were higher than that of Microplus pocket spirometer. The 95% limits of agreements (mean difference+/-2SD) between each instrument were very wide (2.7 to 144.3 L/min). The repeatability coefficient for the mini-Wright peak flow meter was 27 L/min and for the Microplus pocket spirometer was 33.5 L/min. Analysis by sex and order of usage did not show any significant differences.CONCLUSION:
The limit of agreement between the Microplus pocket spirometers and the mini-Wright peak flow meter was too wide to use interchangeably.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Asthma
/
Peak Expiratory Flow Rate
/
Diagnosis
/
Airway Obstruction
Type of study:
Diagnostic study
Limits:
Child
/
Female
/
Humans
Language:
Korean
Journal:
Pediatric Allergy and Respiratory Disease
Year:
1999
Type:
Article
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