Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III

Background: In developed countries, the prevalence of asthma in children has significantly increased in the last decades. However, there is no information about the trends of asthma in Latin America. Aim: To determine changes in asthma prevalence between 1994 and 2002 in Chilean schoolchildren. Mate...

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Autores principales:	Mallol,Javier, Aguirre,Viviana, Aguilar,Pedro, Calvo,Mario, Amarales,Lidia, Arellano,Pamela, Palma,Rodrigo
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2007
Materias:	Age groups Asthma Child Hypersensitivity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872007000500005
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spelling	oai:scielo:S0034-988720070005000052007-07-09Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and IIIMallol,JavierAguirre,VivianaAguilar,PedroCalvo,MarioAmarales,LidiaArellano,PamelaPalma,Rodrigo Age groups Asthma Child Hypersensitivity Background: In developed countries, the prevalence of asthma in children has significantly increased in the last decades. However, there is no information about the trends of asthma in Latin America. Aim: To determine changes in asthma prevalence between 1994 and 2002 in Chilean schoolchildren. Material and methods: The prevalence of asthma symptoms in schoolchildren aged 7 (n =18.697) and 13 years (n =18.939), from South Santiago, Valdivia and Punta Arenas, obtained during phases I and III of the ISAAC, carried out in 1994 and 2002, was compared. Results: From 1994 to 2002, the mean national prevalence of "wheezing in the last 12 months" in the group aged 6-7years, changed from 18.2% to 17.9% (p =NS); "asthma ever" from 12.5% to 10.7% (p =NS), and "severe episode" from 3.2% to 2.8% (p =NS). There was a significant increase of the prevalence of "wheezing in the last 12 months", in children aged 13-14years, from 9.8% to 15.5% (p =0.01); in "asthma ever" from 10.2% to 14.9% (p =0.01), and for "severe episode" from 2.8% to 3.8% (p =0.01). Conclusions: There was a significant increase in the prevalence of respiratory symptoms related to asthma in children aged 13-14 years that was consistent in all the 3 participating centres of the ISAAC. However, the prevalence of asthma symptoms in children aged 6-7 years remained without significant changes between 1994 and 2002info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.135 n.5 20072007-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872007000500005es10.4067/S0034-98872007000500005
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Age groups Asthma Child Hypersensitivity
spellingShingle	Age groups Asthma Child Hypersensitivity Mallol,Javier Aguirre,Viviana Aguilar,Pedro Calvo,Mario Amarales,Lidia Arellano,Pamela Palma,Rodrigo Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III
description	Background: In developed countries, the prevalence of asthma in children has significantly increased in the last decades. However, there is no information about the trends of asthma in Latin America. Aim: To determine changes in asthma prevalence between 1994 and 2002 in Chilean schoolchildren. Material and methods: The prevalence of asthma symptoms in schoolchildren aged 7 (n =18.697) and 13 years (n =18.939), from South Santiago, Valdivia and Punta Arenas, obtained during phases I and III of the ISAAC, carried out in 1994 and 2002, was compared. Results: From 1994 to 2002, the mean national prevalence of "wheezing in the last 12 months" in the group aged 6-7years, changed from 18.2% to 17.9% (p =NS); "asthma ever" from 12.5% to 10.7% (p =NS), and "severe episode" from 3.2% to 2.8% (p =NS). There was a significant increase of the prevalence of "wheezing in the last 12 months", in children aged 13-14years, from 9.8% to 15.5% (p =0.01); in "asthma ever" from 10.2% to 14.9% (p =0.01), and for "severe episode" from 2.8% to 3.8% (p =0.01). Conclusions: There was a significant increase in the prevalence of respiratory symptoms related to asthma in children aged 13-14 years that was consistent in all the 3 participating centres of the ISAAC. However, the prevalence of asthma symptoms in children aged 6-7 years remained without significant changes between 1994 and 2002
author	Mallol,Javier Aguirre,Viviana Aguilar,Pedro Calvo,Mario Amarales,Lidia Arellano,Pamela Palma,Rodrigo
author_facet	Mallol,Javier Aguirre,Viviana Aguilar,Pedro Calvo,Mario Amarales,Lidia Arellano,Pamela Palma,Rodrigo
author_sort	Mallol,Javier
title	Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III
title_short	Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III
title_full	Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III
title_fullStr	Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III
title_full_unstemmed	Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III
title_sort	cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: international study of asthma and allergies in childhood (isaac) - chile phases i and iii
publisher	Sociedad Médica de Santiago
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872007000500005
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Cambios en la prevalencia de asma en escolares chilenos entre 1994 y 2002: International Study of Asthma and Allergies in Childhood (ISAAC) - Chile phases I and III

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