The impact of exacerbation frequency on mortality following acute exacerbations of COPD: a registry-based cohort study.
The impact of exacerbation frequency on mortality following acute exacerbations of COPD: a registry-based cohort study.
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DOI：
10.1136/bmjopen-2014-006720
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发表时间：
2014-12-19
期刊：
影响因子：
2.9
通讯作者：
Christiansen CF
中科院分区：
文献类型：
--
作者：
Schmidt SA;Johansen MB;Olsen M;Xu X;Parker JM;Molfino NA;Lash TL;Sørensen HT;Christiansen CF
To examine the association between exacerbation frequency and mortality following an acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Cohort study using medical databases. Northern Denmark. On 1 January 2005, we identified all patients with prevalent hospital-diagnosed chronic obstructive pulmonary disease (COPD) who had at least one AECOPD during 1 January 2005 to 31 December 2009. We followed patients from the first AECOPD during this period until death, emigration or 31 December 2009, whichever came first. We flagged all AECOPD events during follow-up and characterised each by the exacerbation frequency (0, 1, 2 or 3+) in the prior 12-month period. Using Cox regression, we computed 0–30-day and 31–365-day age-adjusted, sex-adjusted, and comorbidity-adjusted mortality rate ratios (MRRs) with 95% CIs entering exacerbation frequency as a time-varying exposure. We identified 16 647 eligible patients with prevalent COPD, of whom 6664 (40%) developed an AECOPD and were thus included in the study cohort. The 0–30-day MRRs were 0.97 (95% CI 0.80 to 1.18), 0.90 (95% CI 0.70 to 1.15) and 1.03 (95% CI 0.81 to 1.32) among patients with AECOPD with 1, 2 and 3+ AECOPDs versus no AECOPD within the past 12 months, respectively. The corresponding MRRs were 1.47 (95% CI 1.30 to 1.66), 1.89 (95% CI 1.59 to 2.25) and 1.59 (95% CI 1.23 to 2.05) for days 31–365. Among patients with AECOPD, one or more exacerbations in the previous year were not associated with 30-day mortality but were associated with an increased 31–365-day mortality.
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DOI：
10.1097/ede.0b013e3181a819a1
发表时间：
2009-07
期刊：
Epidemiology (Cambridge, Mass.)
影响因子：
--
作者：
Schisterman EF;Cole SR;Platt RW
通讯作者：
Platt RW
影响因子：
5.8
作者：
Gudmundsson G;Gislason T;Lindberg E;Hallin R;Ulrik CS;Brøndum E;Nieminen MM;Aine T;Bakke P;Janson C
通讯作者：
Janson C
DOI：
10.2147/copd.s13826
发表时间：
2010-12-09
影响因子：
2.8
作者：
Hoogendoorn, Martine;Feenstra, Talitha L;Molken, Maureen Rutten-van
通讯作者：
Molken, Maureen Rutten-van
影响因子：
24.3
作者：
Faustini, A.;Marino, C.;Perucci, C. A.
通讯作者：
Perucci, C. A.
影响因子：
4.3
作者：
Thomsen, Reimar W.;Lange, Peter;Bunk, Anette E.
通讯作者：
Bunk, Anette E.