The Economic Impact of Acute Exacerbations of Chronic Bronchitis in the United States and Canada: A Literature Review
Bibliographic record
Abstract
BACKGROUND: Acute exacerbations of chronic bronchitis (AECB) are recurrent and potentially severe medical events for the 13 million people in the United States who have chronic bronchitis. Medical resource use associated with AECB can have a substantial economic impact on the patients, health care system, and society overall. OBJECTIVE: To evaluate literature on the economic impact of AECB in terms of cost of illness, cost of treatments, and cost-effectiveness. METHODS: A MEDLINE literature search was conducted for studies of chronic bronchitis and costs. Reference lists of identified articles were also retrieved for review. RESULTS: Eight published studies were identified: 2 cost-of-illness studies, 1 comparative cost study, and 5 cost-effectiveness studies. Important drivers of costs associated with AECB include hospitalization and choice of antibiotics. In mild to moderate AECB, patient adherence with therapy is essential to consider when selecting treatment. The antibiotic with the lowest acquisition cost has not been shown to be the most cost effective, as adherence and clinical outcomes, particularly rehospitalization rates, differ. CONCLUSION: Further research in these areas is needed to guide clinical decision making and the conduct of disease management programs.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".