ReviewChronic obstructive pulmonary diseases (Miami, Fla.)2019
Inhalation Technique Errors with Metered-Dose Inhalers Among Patients with Obstructive Lung Diseases: A Systematic Review and Meta-Analysis of U.S. Studies.
Review in Chronic obstructive pulmonary diseases (Miami, Fla.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06958666 (Effectiveness of DITM Versus IMT in COPD Patients With High Symptom Burden and High Risk of Acute Exacerbation), which is not on this map. Cited by 38 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Effectiveness of DITM Versus IMT in COPD Patients With High Symptom Burden and High Risk of Acute Exacerbation: A Randomized Controlled Study
Who cites it
38 citing papers in PubMed, 4 syntheses or guidelines pooled it, 80 citations in OpenAlex.
- Inhalation technique-related errors after education among asthma and COPD patients using different types of inhalers - systematic review and meta-analysis.NPJ primary care respiratory medicine · 2025Pooled it
- Comparative effectiveness of ten CPMs for acute exacerbation of chronic obstructive pulmonary disease: systematic review and network meta-analysis.Frontiers in medicine · 2025Pooled it
- Systematic review of the effects of patient errors using inhaled delivery systems on clinical outcomes in COPD.BMJ open respiratory research · 2024Pooled it
- Device use errors with soft mist inhalers: A global systematic literature review and meta-analysis.Chronic respiratory diseasePooled it
- Visual feedback using electrical impedance tomography during inhalation therapy for chronic obstructive lung disease: a pilot study.Scientific reports · 2026Trial
- COPD Patients with a High Exacerbation Risk: Baseline Data Analysis of a National Chinese Prospective Multi-Center Study of Quality Improvement Project.International journal of chronic obstructive pulmonary disease · 2026Trial
- Effects of Oral Doxofylline and Procaterol on Chronic Obstructive Pulmonary Disease: A Randomized Crossover Study.Medical sciences (Basel, Switzerland) · 2025Trial
- Impact of pharmacist-led intervention in medication adherence and inhaler usage on asthma and chronic obstructive pulmonary disease control: a quasi-experimental study.BMC health services research · 2024Trial
- Effect of pharmacist-led inhaler technique assessment service on readmissions in hospitalized COPD patients: a randomized, controlled pilot study.BMC pulmonary medicine · 2022Trial
- Assessment of pMDI inhaler technique in children and adolescents with cystic fibrosis.Jornal de pediatria · 2026Article
- Pulmonary Drug Delivery in the Era of Nanomedicine: From Biological Barriers to Artificial Intelligence-Driven Optimization.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Article
- Awareness and Use of Home-Based Respiratory Pathogen Testing Services in the Internet Era: Postpandemic Questionnaire Study.JMIR formative research · 2026Article
- Air pollution, inhaled therapy and COPD exacerbations in Yunlin, Taiwan: a 2016-2024 single-centre retrospective cohort with environmental and carbon-footprint analyses.BMJ open respiratory research · 2025Observational
- Clinical profile, inhaler technique, and predictors of inhaler adherence among asthma and COPD patients who attended the outpatient emergency department for acute exacerbation.Internal and emergency medicine · 2025Article
- Predictors of Suboptimal Peak Inspiratory Flow in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease in Clinical Practice.Tuberculosis and respiratory diseases · 2025Article
- Effectiveness of an educational intervention on different types of errors -occurring during inhaler therapy use in COPD patients during a -Pulmonary Rehabilitation Program.Multidisciplinary respiratory medicine · 2024Article
- Unlocking Better Asthma Control: A Narrative Review of Adherence to Asthma Therapy and Innovative Monitoring Solutions.Journal of clinical medicine · 2024Review
- Remote digital health technologies for improving the care of people with respiratory disorders.The Lancet. Digital health · 2024Review
- Nurses' Reports of Inhaler Use Errors in Patients with Chronic Obstructive Pulmonary Disease in Hong Kong.International journal of chronic obstructive pulmonary disease · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundMetered dose inhalers (MDIs) are commonly prescribed for inhalation therapy, but correct use is critical to promoting effective medication delivery. This systematic literature review and meta-analysis evaluates the overall and step-by-step prevalence of errors among adults with obstructive lung diseases in the United States who used MDIs.
methodsElectronic and manual searches conducted between 1979-2018 using PubMed, EMBASE, PsycINFO, Cochrane, and Google identified 10 articles that met the following inclusion criteria: (a) English language, (b) U.S. adults diagnosed with chronic obstructive pulmonary disease, and (c) MDI use error rates. Meta-analytic techniques using random-effects models were applied to calculate effect sizes, weighted proportions, and 95% confidence intervals (CIs). Heterogeneity was assessed by the I
resultsAggregate findings revealed that 86.7% of patients (n=390, 95% CI 77.5-96.0) made at least 1 inhalation technique error, and 76.9% (n=885, 95% CI 65.8-87.9) incorrectly performed ≥ 20% of device use steps. The most prevalent step-by-step errors across the studies (n=1105) were failure to: (a) exhale fully and away from the inhaler before inhalation (65.5% [95% CI 52.0, 78.9]); (b) hold breath for 5-10 seconds (41.9% [95% CI 29.8, 53.9]); (c) inhale slowly and deeply (39.4% [95% CI 26.2, 52.5]); (d) exhale after inhalation (35.9% [95% CI 17.0, 54.8]); and (e) shake the inhaler before use (34.2% [95% CI 30.6, 37.7]).
conclusionsAcross the studies used in this meta-analysis more than three-fourths of U.S. adults with obstructive lung diseases used MDIs incorrectly. Our findings suggest the need for ongoing patient education and consideration of alternative devices to mitigate errors.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.