ArticleThorax2000
Declining incidence of episodes of asthma: a study of trends in new episodes presenting to general practitioners in the period 1989-98.
Article in Thorax, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Asthma and other recurrent wheezing disorders in children (acute).BMJ clinical evidence · 2012Pooled it
- Practice development plans to improve the primary care management of acute asthma: randomised controlled trial.BMC family practice · 2007Trial
- Allele-specific transcription of the asthma-associated PHD finger protein 11 gene (PHF11) modulated by octamer-binding transcription factor 1 (Oct-1).The Journal of allergy and clinical immunology · 2011Article
- 50 years of asthma: UK trends from 1955 to 2004.Thorax · 2007Review
- Changing disease incidence: the consulting room perspective.The British journal of general practice : the journal of the Royal College of General Practitioners · 2006Article
- Childhood asthma in South London: trends in prevalence and use of medical services 1991-2002.Thorax · 2006Article
- Too clean, or not too clean: the hygiene hypothesis and home hygiene.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2006Review
- Asthma prevalence in 1973, 1988 and 2003.Thorax · 2006Article
- Is the global rise of asthma an early impact of anthropogenic climate change?Environmental health perspectives · 2005Article
- Temporal change in the prevalence of respiratory symptoms and obstructive airways disease 1993-2001.The British journal of general practice : the journal of the Royal College of General Practitioners · 2005Article
- Respiratory illness associated with influenza and respiratory syncytial virus infection.Archives of disease in childhood · 2005Article
- Prevalence of respiratory symptoms in under 5s: 1993 to 2001.Archives of disease in childhood · 2005Article
- Article
- Hayfever--practical management issues.The British journal of general practice : the journal of the Royal College of General Practitioners · 2004Article
- Continuing decline in acute asthma episodes in the community.Archives of disease in childhood · 2004Article
- The reducing incidence of respiratory tract infection and its relation to antibiotic prescribing.The British journal of general practice : the journal of the Royal College of General Practitioners · 2003Article
- The changing prevalence of asthma?Thorax · 2002Article
- Asthma: a major pediatric health issue.Respiratory research · 2002Review
- A population based time series analysis of asthma hospitalisations in Ontario, Canada: 1988 to 2000.BMC health services research · 2001Article
- Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundA study was undertaken to determine trends in the incidence of new episodes of asthma presented to general practitioners participating in the Weekly Returns Service of the Royal College of General Practitioners, comprising 92 practices with a registered population of approximately 680 000 persons well distributed throughout England and Wales. These practices monitor the morbidity presented at every consultation, distinguishing between new episodes of illness and ongoing consultations.
methodsAge specific weekly rates of new episodes of asthma (and of acute bronchitis) presenting to the general practitioners over the years 1989-98 were examined in four week blocks and analysed by multiple regression, separating secular from seasonal trends.
resultsQuadratic trends in episodes of asthma were evident in each of the age groups with peaks in 1993/4. Corresponding analyses for acute bronchitis disclosed similar trends generally peaking in the winter of 1993/4. Mean weekly incidence data (all ages combined) decreased in all quarters since 1993. Regional analysis (North/Central/South) showed similar decreases.
conclusionsThere has been a gradual decrease in the incidence of asthma episodes and of acute bronchitis presenting to general practitioners since 1993. The trend of an increase before 1993 followed by a decrease cannot be explained by changes in the patterns of health care usage or diagnostic preference of doctors.
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