Observational studyBMJ open2020
Impact of COPD case finding on clinical care: a prospective analysis of the TargetCOPD trial.
Observational study in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.
What it found
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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
6 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Prevalence of COPD in other long-term conditions: a systematic meta review.BMC pulmonary medicine · 2026Pooled it
- Undiagnosed and 'overdiagnosed' COPD using postbronchodilator spirometry in primary healthcare settings: a systematic review and meta-analysis.BMJ open respiratory research · 2023Pooled it
- Impact of the CAPTURE Chronic Obstructive Pulmonary Disease Screening Tool in U.S. Primary Care: A Cluster-Randomized Trial.American journal of respiratory and critical care medicine · 2025Trial
- Improving case-finding of long-term health problems in disadvantaged communities: A Policy-focused Evidence Brief.Public health in practice (Oxford, England) · 2026Article
- The national COPD screening programme in China: rationale and design.ERJ open research · 2023Article
- Ten-year prediction model for post-bronchodilator airflow obstruction and early detection of COPD: development and validation in two middle-aged population-based cohorts.BMJ open respiratory research · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
objectivesTo investigate the impact of chronic obstructive pulmonary disease (COPD) case finding on clinical care.
designWe conducted a prospective observational analysis of data from a pragmatic cluster randomised controlled trial in primary care in the West Midlands, UK (TargetCOPD). This compared alternative methods of COPD case finding against usual care. Data were extracted from electronic healthcare records and self-reported questionnaires for a subset of patients with newly diagnosed COPD.
setting50 general practices that participated in the TargetCOPD trial.
participantsPatients aged 40-79 years newly identified with COPD by targeted case finding or by usual care, from 10 August 2012 to 22 June 2014. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was addition to a COPD register by the end of the trial. The secondary outcome was a clinical care score, derived from the sum of clinical assessments and relevant interventions. Associations between participant characteristics and the primary and secondary outcomes were assessed using multilevel regression.
results857 patients identified with COPD by case finding and 764 by usual care were included. Only 21.2% of case-found patients had been added to a COPD register, compared with 92.7% of those diagnosed by usual care. The odds of being added were greater in smokers (adjusted OR 8.68, 95% CI 2.53 to 29.8), and in those with lower percentage of predicted forced expiratory volume in 1 s (adjusted OR 0.96 per percentage rise, 95% CI 0.95 to 0.98). Patients who had been added to a COPD register had a significantly higher clinical care score (mean difference 5.06, 95% CI 4.36 to 5.75).
conclusionsOnly one in five case-found patients had been registered with COPD. Patients added to a COPD register received significantly higher levels of appropriate clinical care. TRIAL REGISTRATION NUMBER: ISRCTN14930255; Post-results.
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