Has the increase in the prevalence of asthma and respiratory symptoms reached a plateau in Stockholm, Sweden?
Int J Tuberc Lung Dis
; 14(6): 764-71, 2010 Jun.
Article
em En
| MEDLINE
| ID: mdl-20487617
ABSTRACT
SETTING:
An increase in the prevalence of asthma has previously been reported worldwide. However, the current trend is debatable.OBJECTIVE:
To assess changes in the prevalence of asthma and respiratory symptoms in a defined study area in Stockholm, Sweden, using identical methods.DESIGN:
A questionnaire was sent by mail in 1996 and 2007 to randomly selected subjects aged 20-69 years. On both occasions, 8000 subjects received the questionnaire, with response rates of 72% and 68%, respectively. Questions on asthma, respiratory symptoms, asthma medication and possible determinants were included. Logistic regression analysis was used to assess determinants.RESULTS:
Ever asthma increased from 8.7% in 1996 to 11.0% in 2007 and physician-diagnosed asthma from 7.6% to 9.3%. The proportion of asthma patients reporting one to two symptoms increased by 14% during the study period. There were few significant changes in the prevalence of respiratory symptoms wheeze in the previous 12 months (15.9-17.3%), wheezing with breathlessness apart from cold (3.2-4.1%) and recurrent wheeze (8.3-6.8%). There was no major difference in the risk factor pattern between the surveys.CONCLUSION:
An increase in the prevalence of asthma with few symptoms as well as an unchanged prevalence of symptoms was demonstrated, which may indicate a change in diagnostic practices.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças Respiratórias
/
Asma
/
População Urbana
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Aspecto:
Determinantes_sociais_saude
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Int J Tuberc Lung Dis
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Suécia