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BMC Pulmonary Medicine

, 16:68

COPD and occupational lung disease


BackgroundChronic obstructive pulmonary disease COPD is often associated with recurrent hospitalizations. This study aimed to identify factors related to COPD rehospitalization.

MethodsA national US claims database was used to identify patients, aged ≥40 years, hospitalized for COPD. Their first COPD-related hospital admission date in 2009 was set as the index date, with post-discharge COPD-related rehospitalization assessed for 180 days post-index date. Data were analyzed for: 1 all eligible patients in whom early COPD-related rehospitalization was evaluated 1–30 days post discharge; all-patient cohort and 2 a patient subset not rehospitalized early in whom late COPD-related rehospitalization was evaluated >30 days post discharge to 180 days post-index date; late cohort. Logistic regressions controlling for age and sex assessed potential COPD-related rehospitalization predictors. Variables from the 360-day pre-index period and index hospitalization were evaluated for each cohort, and 30-day post-discharge variables evaluated for the late cohort.

ResultsOf 3612 patients with an index hospitalization, 4.8 % 174 had an early COPD-related rehospitalization, and of the remaining 3438 patients, 13.7 % 471 had a late COPD-related rehospitalization. Several pre-index variables were predictive of early COPD-related rehospitalization including: pneumonia; comorbidities; COPD-related drug therapies; and prior hospitalizations. In patients not rehospitalized early, the strongest predictor of late COPD-related rehospitalization was pre-index COPD-related hospitalization OR = 3.64 P < 0.001. The strongest index hospitalization factors predictive of late COPD-related rehospitalization were use of steroids any route: OR = 1.62 P = 0.007 and nebulizers OR = 1.65 P = 0.007; neither predicted early COPD-related rehospitalization. Generally, factors predicting COPD-related rehospitalization were similar in both cohorts.

ConclusionsSeveral pre-index variables were associated with COPD-related rehospitalization. A strong predictor of COPD-related rehospitalization was prior hospitalization during the pre-index period, particularly with a primary COPD diagnosis, whilst other predictive factors related to increased COPD severity; these may be useful indicators for COPD-related rehospitalization risk assessment. Some factors, e.g., recurrent pneumonia and exacerbations, may be modifiable.

KeywordsChronic obstructive pulmonary disease COPD Comorbidity Exacerbations Readmission predictors Rehospitalization Utilization AbbreviationsCIconfidence interval

COPDchronic obstructive pulmonary disease

CPTCurrent Procedural Terminology

HCPCSHealthcare Common Procedure Coding System

ICD-9-CMInternational Classification of Diseases, 9th Revision, Clinical Modification

LABAlong-acting beta-agonist

NDCNational Drug Code

ORodds ratio

SABAshort-acting beta-agonist

SDstandard deviation

Electronic supplementary materialThe online version of this article doi:10.1186-s12890-016-0231-3 contains supplementary material, which is available to authorized users.

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Autor: Melissa H. Roberts - Emmanuelle Clerisme-Beaty - Chris M. Kozma - Andrew Paris - Terra Slaton - Douglas W. Mapel

Fuente: https://link.springer.com/

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