Patients with acute exacerbations of COPD saw anxiety as a sign, rather than cause, of breathlessness
Bibliographic record
Abstract
Bailey PH. The dyspnea-anxiety-dyspnea cycle—COPD patients’ stories of breathlessness: “It’s scary /when you can’t breathe.” Qual Health Res 2004;14:760–78.[OpenUrl][1][CrossRef][2][PubMed][3][Web of Science][4] Q How do patients describe the relation between anxiety and the experience of dyspnoea (ie, perception of shortness of breath) during an acute exacerbation of chronic obstructive pulmonary disease (COPD)? Focused ethnography with narrative analysis. 2 hospitals in a mining community in northern Ontario, Canada. 10 family-nurse units of patients who were admitted to hospital with acute exacerbation of COPD characterised by extreme dyspnoea; had ⩾2 previous acute exacerbations of COPD that required hospital admission; and had named family members as next of kin. The nurse-family units comprised 10 patients, 15 family caregivers (FCs), and 10 nurses. Indepth interviews were conducted during the patient’s hospital stay. Questions were based on the chronic illness model of Strauss et al , which defined acute COPD exacerbation as a medical crisis of a chronic illness. Narrative analysis was used to analyse 3 genres of the 503 stories identified from transcribed interviews: first-person event-specific stories recreating a discrete moment in time; generic or … [1]: {openurl}?query=rft.jtitle%253DQualitative%2BHealth%2BResearch%26rft.stitle%253DQual%2BHealth%2BRes%26rft.aulast%253DBailey%26rft.auinit1%253DP.%2BH.%26rft.volume%253D14%26rft.issue%253D6%26rft.spage%253D760%26rft.epage%253D778%26rft.atitle%253DThe%2BDyspnea-Anxiety-Dyspnea%2BCycle--COPD%2BPatients%2527%2BStories%2Bof%2BBreathlessness%253A%2B%2522It%2527s%2BScary%2B%252FWhen%2Byou%2BCan%2527t%2BBreathe%2522%26rft_id%253Dinfo%253Adoi%252F10.1177%252F1049732304265973%26rft_id%253Dinfo%253Apmid%252F15200799%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [2]: /lookup/external-ref?access_num=10.1177/1049732304265973&link_type=DOI [3]: /lookup/external-ref?access_num=15200799&link_type=MED&atom=%2Febnurs%2F8%2F2%2F61.atom [4]: /lookup/external-ref?access_num=000222005700003&link_type=ISI
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.005 | 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 source (direct Gemma or distilled Codex), 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".