[The relationships between the peak inspiratory flow and the characteristics factors in the asthmatics with inhaled corticosteroid -a multicenter study in Chugoku Shikoku area].

Yasushi Obase, Arihiko Kanehiro, Yasushi Tanimoto, Nobuaki Miyahara, Mikio Oka, Ryosuke Eda, Tetsuya Kubota, Akihito Yokoyama, Kiryo Wakabayashi, Hiroyasu Takeyama, Chiharu Okada, Goro Kimura, Ryo Soda, Kiyoshi Takahashi, Mitsune Tanimoto

Research output: Contribution to journalArticlepeer-review

Abstract

Inhaled corticosteroid (ICS) will be effective if used properly. Inadequate intake may result in insufficiency, such as for elderly asthmatics, in particular, for use of dry powder inhalers. 312 asthmatics treated with ICS for at least 6 months in the 6 facilities belonging to the Chugoku Shikoku Adult Asthma Research Forum were subject to investigation of the peak inspiratory flow (PIF) measured using In-check® and related factors. Nine (2.8%) patients were considered to have insufficient intake. By multivariate analysis, PIF (L/min) prediction formula was as follows: 79.0+0.19* peak expiratory flow (PEF: L/min)+22.9* FVC (L)-0.68* onset age (years)+34.7* gender (male, 1; female, 0)+16.1* V50/V25, [r^2=0.677, p

Original languageEnglish
Pages (from-to)1621-1629
Number of pages9
JournalArerugī = [Allergy]
Volume60
Issue number12
Publication statusPublished - Dec 2011

Keywords

  • Dry powder inhaler
  • Inhaled corticosteroid
  • Metered dose inhaler
  • Peak inspiratory flow
  • Variable dendrogram

ASJC Scopus subject areas

  • Immunology and Allergy

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