Reproducibility of a portable spirometer based on differential pressure sensor.
- Author:
Kun ZOU
1
;
Chaomin NI
;
Zhijun HE
;
Yongliang ZHANG
;
Zuchang MA
;
Jianxia SONG
;
Ke ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Female; Humans; Male; Middle Aged; Monitoring, Ambulatory; instrumentation; Observer Variation; Reproducibility of Results; Spirometry; instrumentation
- From: Chinese Journal of Medical Instrumentation 2013;37(1):30-48
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVEAssessing the reproducibility of a portable spirometer, including reproducibility of inter-observer and day-today.
METHODSLung ventilation function was performed in 22 healthy volunteers by two observers on the same day and repeated by the first observer after 24h.
RESULTSThe inter-observer and day-to-day intra-class correlation coefficients are all higher than 0.75. There are no significant difference between each other. Bland-Altman chart shows good limits of agreement between inter-observer and day-to-day, only scattered data are outside of the limits of agreement.
CONCLUSIONSThe portable spirometer shows good inter-observer and day-to-day reproducibility, and can be used for testing lung function in clinical.
