ArticleJournal of general internal medicine2007
Geographic variation in chronic obstructive pulmonary disease exacerbation rates.
Article in Journal of general internal medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Association between lung function and exacerbation frequency in patients with COPD.International journal of chronic obstructive pulmonary disease · 2010Pooled it
- ACCEPT 3.0: Recalibrating ACute COPD Exacerbation Prediction Tool (ACCEPT) for global use.Diagnostic and prognostic research · 2026Article
- Reassessment of Home Oxygen Prescription after Hospitalization for Chronic Obstructive Pulmonary Disease. A Potential Target for Deimplementation.Annals of the American Thoracic Society · 2021Article
- Initiating Low-Value Inhaled Corticosteroids in an Inception Cohort with Chronic Obstructive Pulmonary Disease.Annals of the American Thoracic Society · 2020Article
- Rural Residence and Chronic Obstructive Pulmonary Disease Exacerbations. Analysis of the SPIROMICS Cohort.Annals of the American Thoracic Society · 2018Article
- Investigating trends in asthma and COPD through multiple data sources: A small area study.Spatial and spatio-temporal epidemiology · 2016Article
- Rural-urban disparities in quality of life among patients with COPD.The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association · 2013Article
- Geographic disparity in COPD hospitalization rates among the Texas population.Respiratory medicine · 2011Article
- Safety-net facilities and hospitalization rates of chronic obstructive pulmonary disease: a cross-sectional analysis of the 2007 Texas Health Care Information Council inpatient data.International journal of chronic obstructive pulmonary disease · 2011Article
- Geographic disparities in chronic obstructive pulmonary disease (COPD) hospitalization among Medicare beneficiaries in the United States.International journal of chronic obstructive pulmonary disease · 2011Article
- Impact of statins and ACE inhibitors on mortality after COPD exacerbations.Respiratory research · 2009Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
backgroundExacerbations are important disease events for patients with chronic obstructive pulmonary disease (COPD) as they are relatively frequent, result in significant resource use and can indicate worsening disease. Little is known about variation in COPD exacerbation rates across a health system in various geographic regions.
objectiveTo compare COPD exacerbation rates by regional service networks called Veterans Integrated Service Network (VISN) in the Veterans Health Administration (VA) system.
designRetrospective, observational study. SUBJECTS: Patients with a COPD diagnosis from October 1999 to September 2000 with follow-up to September 2002. MEASUREMENTS: Acute exacerbations of COPD during the baseline and follow-up periods.
resultsA total of 198,981 patients were identified. Average exacerbation rate at baseline was 0.503 events per person per year. In the follow-up period, there were 187,686 exacerbations experienced by 87,494 persons (44.0% of cohort). During follow-up, the average adjusted exacerbation rate was 0.589 per person per year and varied from 0.335 (95% CI, 0.328-0.342) in VISN 1 to 0.749 (95% CI, 0.735-0.0.763) in VISN 9. Using the median rate of exacerbation during the baseline period as the referent, 9 VISNs had lower adjusted rate ratios and 12 VISNs had higher adjusted rate ratios in the follow-up period.
conclusionsGeographic variation in the VA VISN system supports evidence that the medical care system including provider factors, and less so patient factors, affect COPD exacerbations. Understanding the reasons underlying this variation in COPD exacerbation rates may lead to improvements in future care and outcomes.
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