Psychometric Properties of the Hospital Anxiety and Depression Scale in Individuals With Chronic Obstructive Pulmonary Disease: Protocol for a Systematic Review
Bibliographic record
Abstract
BACKGROUND: In individuals with chronic obstructive pulmonary disease (COPD), anxiety and depression contribute to increased mortality and exacerbations, decreased physical functioning, and deteriorated health-related quality of life. The Hospital Anxiety and Depression Scale (HADS) is a patient-reported tool developed to measure symptoms of anxiety and depression in clinical settings. The HADS has been frequently used with individuals with COPD; however, its measurement properties lack critical appraisal in this population. OBJECTIVE: This review aims to summarize and critically appraise the validity, reliability, and responsiveness of the HADS in individuals with COPD. METHODS: Five electronic databases (MEDLINE, Embase, Scopus, PsychINFO, and Web of Science) will be systematically searched. Articles will be included if they assessed the measurement properties of the HADS in COPD; were published in a peer-reviewed journal; and were written in English. The COSMIN (Consensus-based Standards for the Selection of Health Measurement Instruments) guidelines will be used to assess the methodological quality and level of evidence in the selected studies. RESULTS: To date, 12 articles met the inclusion criteria and will be included in the systematic review. The results of the psychometric properties of HADS will be qualitatively summarized and compared against the criteria for good measurement properties. The overall quality of evidence will be graded using the modified Grading of Recommendations, Assessment, Development and Evaluation approach. We expect to complete the systematic review by December 2022. CONCLUSIONS: This systematic review will be the first to evaluate the psychometric properties of the HADS in individuals with COPD. Given the negative impact of anxiety and depression on physical functioning and health-related quality of life, this systematic review provides an opportunity to use the HADS as a validated measurement tool for the assessment and treatment of anxiety and depression in individuals with COPD. TRIAL REGISTRATION: PROSPERO CRD42022302064; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=302064. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/37854.
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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 | 0.064 | 0.078 |
| Meta-epidemiology (narrow) | 0.006 | 0.005 |
| Meta-epidemiology (broad) | 0.018 | 0.020 |
| Bibliometrics | 0.012 | 0.012 |
| Science and technology studies | 0.004 | 0.004 |
| Scholarly communication | 0.007 | 0.008 |
| Open science | 0.005 | 0.006 |
| Research integrity | 0.007 | 0.007 |
| Insufficient payload (model declined to judge) | 0.051 | 0.007 |
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".