Obstructive airway diseases, such as asthma and chronic obstructive pulmonary disease (COPD), have airflow limitation associated with chronic inflammation. Using a national inpatient database in Japan, we aimed to evaluate factors affecting in-hospital mortality in patients with asthma, COPD or asthma-COPD overlap (ACO).We retrospectively collected data for inpatients (age >40 years) with exacerbation of COPD and/or asthma in 1073 hospitals across Japan between July 2010 and May 2013. We performed multivariable logistic regression analysis to examine the association of various factors with all-cause in-hospital mortality, including diagnosis of ACO, asthma alone and COPD alone.Of 30 405 eligible patients, in-hospital mortality in patients with ACO, asthma alone and COPD alone was 2.3

作者：Yasuhiro, Yamauchi；Hideo, Yasunaga；Hiroki, Matsui；Wakae, Hasegawa；Taisuke, Jo；Kazutaka, Takami；Kiyohide, Fushimi；Takahide, Nagase

来源：Respirology (Carlton, Vic.) 2015 年 20卷 6期