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Trends in asthma mortality in young people in southern Brazil.
- Source :
-
Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology [Ann Allergy Asthma Immunol] 1999 Mar; Vol. 82 (3), pp. 287-92. - Publication Year :
- 1999
-
Abstract
- Background: Mortality from asthma increased and is now declining in some countries, but little is known about these trends in South America.<br />Objective: We aimed to assess trends in mortality from asthma in southern Brazil in children and young adults.<br />Methods: Death certificates of 425 people in the state of Rio Grande do Sul aged between 5 and 39 years in whom asthma was reported to be the underlying cause of death during the period 1970 to 1992 were reviewed. Population data were available in 10-year age groups. Testing for trends in mortality rates was conducted using linear and log-linear regression procedures.<br />Results: Asthma mortality rates in the age groups 5 to 19 and 20 to 39 years ranged between 0.04 and 0.39/100,000 and 0.28 to 0.75/100,000, respectively, and were nonuniformly distributed over the study period. The mean annual increase in rate in 5- to 19-year olds was +0.01 (95% CI 0.003 to 0.016), an average annual percentage increase of +6.8% (95% CI 3% to 11%), with a total increase of 352% between 1970 and 1992. This increase was not due to a shift in labeling from bronchitis to asthma. In the 20 to 39-year age group, asthma and bronchitis mortality rates showed no trend to increase or decrease.<br />Conclusions: Asthma mortality in southern Brazil is low, but rose significantly between 1970 and 1992 in the 5 to 19-year age group. This trend differs from that found in other states of Brazil and several other Latin American countries. Reasons for this difference remain unclear.
Details
- Language :
- English
- ISSN :
- 1081-1206
- Volume :
- 82
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology
- Publication Type :
- Academic Journal
- Accession number :
- 10094220
- Full Text :
- https://doi.org/10.1016/S1081-1206(10)62610-5