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Article

"Frequent exacerbator" is a phenotype of poor prognosis in Japanese patients with chronic obstructive pulmonary disease.

International journal of chronic obstructive pulmonary disease - 1 Jan 2016

Tomioka Ryusuke, Kawayama Tomotaka, Suetomo Masashi, Kinoshita Takashi, Tokunaga Yoshihisa, Imaoka Haruki, Matsunaga Kazuko, Okamoto Masaki, Hoshino Tomoaki

Abstract excerpt

BACKGROUND: The prognosis of Japanese patients with COPD who suffer repeated exacerbations is unclear, although Westerners with such episodes have a poor prognosis. MATERIALS AND METHODS: We conducted a 1-year prospective observational trial involving 90 Japanese patients with COPD: 58 nonexacerbators, 12 infrequent exacerbators, and 20 frequent exacerbators classified on the basis of exacerbation frequency...

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Identifiers

PMID: 26893552
DOI: 10.2147/COPD.S98205
PMCID: PMC4745858

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