The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Adherence to inhaled therapy, mortality and hospital admission in COPD
Open accessAbstract
BACKGROUND: Little is known about adherence to inhaled medication in chronic obstructive pulmonary disease (COPD) and the impact on mortality and morbidity. METHODS: Data on drug adherence from a randomised double-blind trial comparing inhaled salmeterol 50 microg + fluticasone propionate 500 microg twice daily with placebo and each drug individually in 6112 patients with moderate to severe COPD over 3 years in the TORCH study were used. All-cause mortality and exacerbations leading to hospital admission were primary and secondary end points. The study of adherence was not specified a priori as an ancillary study. RESULTS: Of the 4880 patients (79.8%) with good adherence defined as >80% use of study medication, 11.3% died compared with 26.4% of the 1232 patients (20.2%) with poor adherence. The annual rates of hospital admission for exacerbations were 0.15 and 0.27, respectively. The association between adherence and mortality remained unchanged and statistically significant after adjusting for other factors related to prognosis (hazard ratio 0.40 (95% CI 0.35 to 0.46), p<0.001). The association was even stronger when analysing on-treatment deaths only. Similarly, the association between adherence and hospital admission remained unchanged and significant in a multivariate analysis (rate ratio 0.58 (95% CI 0.44 to 0.73, p<0.001). The association between increased adherence and improved mortality and reduction in hospital admission was independent of study treatment. The effect of treatment was more pronounced in patients with good adherence than in those with poor adherence. CONCLUSION: Adherence to inhaled medication is significantly associated with reduced risk of death and admission to hospital due to exacerbations in COPD. Further research is needed to understand these strong associations.
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“There are several risk factors for COPD-related hospital admissions, including nonadherence to medication [5].”
From Using Robots at Home to Support Patients With Chronic Obstructive Pulmonary Disease: Pilot Randomized Controlled Trial (2018) · cites this paper as [5]
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Vestbo, J., Hurd, S. S., Agustí, A. G., Jones, P. W., Vogelmeier, C., Anzueto, A., Barnes, P. J., Fabbri, L. M., Martinez, F. J., Nishimura, M., et al. (2013) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.201204-0596pp · Cited by 15,983
Self-citationRabe, K. F., Hurd, S., Anzueto, A., Barnes, P. J., Buist, S. A., Calverley, P., Fukuchi, Y., Jenkins, C., Rodriguez-Roisin, R., van Weel, C., et al. (2007) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.200703-456so · Cited by 4,925
Self-citationSalmeterol and Fluticasone Propionate and Survival in Chronic Obstructive Pulmonary Disease
CALVERLEY, P. M. A., Anderson, J. A., Celli, B. R., Ferguson, G. T., Jenkins, C. R., Jones, P., Yates, J., & Vestbo, J. (2007) · New England Journal of Medicine · doi:10.1056/nejmoa063070 · Cited by 3,234
Self-citationRodríguez, R. (2007) · Cited by 1,412
A meta-analysis of the association between adherence to drug therapy and mortality
Simpson, S. H., Eurich, D. T., Majumdar, S. R., Padwal, R. S., Tsuyuki, R. T., Varney, J., & Johnson, J. A. (2006) · BMJ · doi:10.1136/bmj.38875.675486.55 · Cited by 1,353 · cited 3×
“treatment with a drug with positive effects to that in patients receiving placebo.(1) Most of the studies”
BackgroundMethodResultInfluentialGarcia-Aymerich, J., Lange, P., Benet, M., Schnohr, P., & Anto, J. M. (2006) · Thorax · doi:10.1136/thx.2006.060145 · Cited by 1,113
Mortality in COPD: role of comorbidities
Sin, D. D., Anthonisen, N. R., Soriano, J. B., & Agusti, A. G. (2006) · European Respiratory Journal · doi:10.1183/09031936.00133805 · Cited by 1,052
Bourbeau, J. (2003) · Archives of Internal Medicine · doi:10.1001/archinte.163.5.585 · Cited by 933
The Handbook of health behavior change
(2009) · Choice Reviews Online · doi:10.5860/choice.46-6233 · Cited by 616
Patterns of Comorbidities in Newly Diagnosed COPD and Asthma in Primary Care
Soriano, J. B., Visick, G. T., Muellerova, H., Payvandi, N., & Hansell, A. L. (2005) · Chest · doi:10.1378/chest.128.4.2099 · Cited by 615
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Chronic obstructive pulmonary disease
Barnes, P. J., Burney, P., Silverman, E. K., Celli, B. R., Vestbo, J., Wedzicha, J. A., & Wouters, E. F. �. (2015) · Nature Reviews Disease Primers · doi:10.1038/nrdp.2015.76 · Cited by 761
Self-citationAdherence to inhaled therapies, health outcomes and costs in patients with asthma and COPD
Mäkelä, M. J., Backer, V., Hedegaard, M. S., & Larsson, K. (2013) · Respiratory Medicine · doi:10.1016/j.rmed.2013.04.005 · Cited by 485
Dransfield, M. T., Bourbeau, J., Jones, P., Hanania, N. A., Mahler, D. A., Vestbo, J., Wachtel, A., Martínez, F. J., Barnhart, F., Sanford, L., et al. (2013) · The Lancet Respiratory Medicine · doi:10.1016/s2213-2600(13)70040-7 · Cited by 343
Self-citationValidation of the ‘Test of the Adherence to Inhalers’ (TAI) for Asthma and COPD Patients
Plaza, V., Fernández, C., Moreno, C. M., Cosío, B. G., Costa, L. M. E., de Llano, L. A. P., Pereyra, F. G., Tarragona, E., Palomino, R., López-Viña, A., et al. (2015) · Journal of Aerosol Medicine and Pulmonary Drug Delivery · doi:10.1089/jamp.2015.1212 · Cited by 284
Nannini, L. J., Poole, P., Milan, S. J., Holmes, R. S., & Normansell, R. (2013) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd003794.pub4 · Cited by 276
Metadata
- Authors
- Vestbo, J., Anderson, J. A., Calverley, P. M. A., Celli, B., Ferguson, G. T., Jenkins, C., Knobil, K., Willits, L. R., Yates, J. C., & Jones, P. W.
- Affiliations
- University of Manchester (GB)
- GlaxoSmithKline (United Kingdom) (GB)
- Aintree University Hospital (GB)
- Tufts University (US)
- Woolcock Institute of Medical Research (AU)
- GlaxoSmithKline (United States) (US)
- St George's, University of London (GB)
- Corresponding author
- Vestbo, J
- Venue
- Thorax
- Publisher
- BMJ
- Published
- 2009-08-23
- Volume
- 64
- Issue
- 11
- Pages
- 939-943
- ISSN
- 0040-6376 (ISSN-L)
- OpenAlex
- W2095666112
- Cited by
- 516
- References
- 32
- Citations by year
- 2026: 17 · 2025: 22 · 2024: 36 · 2023: 35 · 2022: 30 · 2021: 34 · 2020: 45 · 2019: 36 · 2018: 33 · 2017: 32 · 2016: 31 · 2015: 35 · 2014: 45 · 2013: 31 · 2012: 17
- FWCI
- 15.15
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Thorax (publishedVersion)
- PubMed (publishedVersion)
- Research Explorer (The University of Manchester) (publishedVersion)
- HighWire Press Open Archive (submittedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Health Sciences › Medicine › Family Practice › Medication Adherence and Compliance
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Inhalation and Respiratory Drug Delivery
- Keywords
- chronic obstructive pulmonary disease, medication adherence, inhalation therapy, salmeterol, fluticasone propionate, all-cause mortality, hospitalization, COPD exacerbations, TORCH trial
- MeSH terms
- Fluticasone, Salmeterol Xinafoate, Administration, Inhalation, Adult, Aged, Aged, 80 and over, Albuterol, Androstadienes, Bronchodilator Agents, Drug Administration Schedule, Drug Combinations, Drug Therapy, Combination, Epidemiologic Methods, Female, Hospitalization, Humans, Male, Middle Aged, Pulmonary Disease, Chronic Obstructive, Medication Adherence
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