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Title Alternative
Discriminant analysis of asthmatic patients and healthy adults using maximal expiratory indices
Author
Meguro, Tadamichi
Ogata, Masana
Abstract
The selection of effective maximal expiratory was evaluated using discriminant analysis of asthmatic patients and healthy adults in this review. Maximal expiratory volume-time and flow-volume (MEVT and MEFV) curves were drawn for young non-smoking healthy subjects and for young male non-smoking asthmatic patients. Eleven indices, two MEVT (%FVC and FEV(1.0%)), six MEFV (PEFR, Flow(75), Flow(50), Flow(25), Flow(10) and Flow(50)/Flow(25)) and three mean time constant (MTC) indices (MTC(75-50), MTC(50-25) and MTC(25-RV)) were used for the discriminant analysis using an all possible selection procedure (APSP). In the eleven-indices discriminant analysis using a single index, Flow(75), Flow(50) and Flow(25) were effective indices. In the discriminant analysis through APSP, PEFR, Flow(75), MTC(75-50) and FEV(1.0%), which were at high lung volumes, were the set of the most effective four indices. These four indices appear to be effective in assessing bronchial asthma through a visual evaluation of MEFV curves. Therefore, discriminant analysis is appropriate in assessing the MEFV curves.
Keywords
気管支喘息
MEFV曲線
最大呼気指標判別分析
最良選択法
Published Date
1989-02
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume101
Issue
issue1-2
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
175
End Page
187
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/101/1-2/101_1-2_175/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma