The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.
Risk factors of frequent exacerbations in difficult-to-treat asthma
Open accessAbstract
Recurrent exacerbations are a major cause of morbidity and medical expenditure in patients with asthma. Various exogenous and endogenous factors are thought to influence the level of asthma control, but systematical data on the involvement of these factors in the recurrence of asthma exacerbations are scarce. In this study, 13 clinical and environmental factors potentially associated with recurrent exacerbations were investigated in 136 patients with difficult-to-treat asthma. Patients with more than three severe exacerbations (n = 39) in the previous year were compared with those with only one exacerbation per year (n = 24). A systematic diagnostic protocol was used to assess 13 potential risk factors. Factors significantly associated with frequent exacerbations included: severe nasal sinus disease (adjusted odds ratio (OR) 3.7); gastro-oesophageal reflux (OR 4.9); recurrent respiratory infections (OR 6.9); psychological dysfunctioning (OR 10.8); and obstructive sleep apnoea (OR 3.4). Severe chronic sinus disease and psychological dysfunctioning were the only independently associated factors (adjusted OR 5.5 and 11.7, respectively). All patients with frequent exacerbations exhibited at least one of these five factors, whilst 52% showed three or more factors. In conclusion, the results show that recurrent exacerbations in asthma are associated with specific co-morbid factors that are easy to detect and that are treatable. Therapeutic interventions aimed at correcting these factors are likely to reduce morbidity and medical expenditure in these patients.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Lung volumes and forced ventilatory flows
Quanjer, P. H., Tammeling, G. J., Cotes, J. E., Pedersen, O. F., Peslin, R., & Yernault, J.-C. (1993) · European Respiratory Journal · doi:10.1183/09041950.005s1693 · Cited by 5,318
(1993) · PubMed · Cited by 3,827
Community study of role of viral infections in exacerbations of asthma in 9–11 year old children
Johnston, S. L., Pattemore, P. K., Sanderson, G., Smith, S., Lampe, F., Josephs, L., Symington, P., Toole, S. O., Myint, S. H., Tyrrell, D. A. J., et al. (1995) · BMJ · doi:10.1136/bmj.310.6989.1225 · Cited by 1,991
Respiratory viruses and exacerbations of asthma in adults
Nicholson, K. G., Kent, J., & Ireland, D. C. (1993) · BMJ · doi:10.1136/bmj.307.6910.982 · Cited by 1,127
Standardized challenge testing with pharmacological, physical and sensitizing stimuli in adults
Sterk, P. J., Fabbri, L. M., Quanjer, P. H., Cockcroft, D. W., O'Byrne, P. M., Anderson, S. D., Juniper, E. F., & Malo, J.-L. (1993) · European Respiratory Journal · doi:10.1183/09041950.053s1693 · Cited by 1,049
Self-citationInadequate Literacy Is a Barrier to Asthma Knowledge and Self-Care
Williams, M. V., Baker, D. W., Honig, E. G., Lee, T. M., & Nowlan, A. (1998) · Chest · doi:10.1378/chest.114.4.1008 · Cited by 660
Exacerbations of Asthma: A Descriptive Study of 425 Severe Exacerbations
TATTERSFIELD, A. E., POSTMA, D. S., BARNES, P. J., SVENSSON, K., BAUER, C.-A., O'BYRNE, P. M., LÖFDAHL, C.-G., PAUWELS, R. A., & ULLMAN, A. (1999) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.160.2.9811100 · Cited by 386
Factors Associated with Persistent Airflow Limitation in Severe Asthma
ten BRINKE, A., ZWINDERMAN, A. H., STERK, P. J., RABE, K. F., & BEL, E. H. (2001) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.164.5.2011026 · Cited by 360
Self-citationErs Task Force on Difficult/therapy-Resistant Asthma, & Members of the Task Force: K.F. Chung and P. Godard (co-chairmen), E. A. (1999) · European Respiratory Journal · doi:10.1034/j.1399-3003.1999.13e43.x · Cited by 351
Newman, L. J. (1994) · JAMA · doi:10.1001/jama.271.5.363 · Cited by 291
Cited by
International ERS/ATS guidelines on definition, evaluation and treatment of severe asthma
Chung, K. F., Wenzel, S. E., Brozek, J. L., Bush, A., Castro, M., Sterk, P. J., Adcock, I. M., Bateman, E. D., Bel, E. H., Bleecker, E. R., et al. (2014) · European Respiratory Journal · doi:10.1183/09031936.00202013 · Cited by 3,926
Self-citationReddel, H. K., Taylor, D. R., Bateman, E. D., Boulet, L.-P., Boushey, H. A., Busse, W. W., Casale, T. B., Chanez, P., Enright, P. L., Gibson, P. G., et al. (2009) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.200801-060st · Cited by 1,918
Self-citationClarke, D. M., & Currie, K. C. (2009) · Medical Journal of Australia · doi:10.5694/j.1326-5377.2009.tb02471.x · Cited by 661
Asthma in adults and its association with chronic rhinosinusitis: The GA 2 LEN survey in Europe
Jarvis, D., Newson, R., Lotvall, J., Hastan, D., Tomassen, P., Keil, T., Gjomarkaj, M., Forsberg, B., Gunnbjornsdottir, M., Minov, J., et al. (2012) · Allergy · doi:10.1111/j.1398-9995.2011.02709.x · Cited by 485
Inflammatory and Comorbid Features of Patients with Severe Asthma and Frequent Exacerbations
Denlinger, L. C., Phillips, B. R., Ramratnam, S., Ross, K., Bhakta, N. R., Cardet, J. C., Castro, M., Peters, S. P., Phipatanakul, W., Aujla, S., et al. (2017) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.201602-0419oc · Cited by 435
Metadata
- Authors
- ten Brinke, A., Sterk, P. J., Masclee, A. A. M., Spinhoven, P., Schmidt, J. T., Zwinderman, A. H., Rabe, K. F., & Bel, E. H.
- Venue
- European Respiratory Journal
- Publisher
- European Respiratory Society (ERS)
- Published
- 2005-11
- Volume
- 26
- Issue
- 5
- Pages
- 812-818
- ISSN
- 0903-1936 (ISSN-L)
- 1399-3003
- OpenAlex
- W2104718344
- Cited by
- 490
- References
- 39
- FWCI
- 10.77
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Risk factors of frequent exacerbations in difficult-to-treat asthma. https://app.cochat.ai/papers/10.1183/09031936.05.00037905
- The paper
- ten Brinke, A., Sterk, P. J., Masclee, A. A. M., Spinhoven, P., Schmidt, J. T., Zwinderman, A. H., Rabe, K. F., & Bel, E. H. (2005). Risk factors of frequent exacerbations in difficult-to-treat asthma. European Respiratory Journal. https://doi.org/10.1183/09031936.05.00037905
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.