Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFBA |
Texto Completo: | http://repositorio.ufba.br/ri/handle/ri/17774 |
Resumo: | BACKGROUND: Rural residence is protective against atopy and wheeze-rhinitis-eczema symptoms in developed countries, an effect attributed to farming and poor hygiene exposures. There are few data from developing countries addressing this question. We compared atopy and wheeze-rhinitis-eczema symptoms between urban and rural Ecuador, and explored the effects of farming and poor hygiene exposures. METHODS: We performed cross sectional studies of schoolchildren living in rural and urban Ecuador. Data on symptoms and farming/hygiene exposures were collected by parental questionnaire, atopy by allergen skin prick test reactivity and geohelminth infections by stool examinations. RESULTS: Among 2526 urban and 4295 rural schoolchildren, prevalence was: atopy (10.0% vs 12.5%, p=0.06), wheeze (9.4% vs 10.1%, p=0.05), rhinitis (8.1% vs 6.4%, p=0.02) and eczema (5.9% vs 4.7%, p=0.06). A small proportion of symptoms were attributable to atopy (range 3.9-10.7%) with greater attributable fractions for respiratory symptoms observed in urban schoolchildren. Respiratory symptoms were associated with poor hygiene/farming exposures: wheeze with lack of access to potable water; and rhinitis with household pets, no bathroom facilities and contact with large farm animals. Birth order was inversely associated with respiratory symptoms. Area of residence and atopy had few effects on these associations. CONCLUSIONS: Urban schoolchildren living in Ecuador have a similar prevalence of atopy, eczema and wheeze but a higher prevalence of rhinitis compared with rural children. Some farming and poor hygiene exposures were associated with an increase in the prevalence of wheeze or rhinitis while birth order was inversely associated with these symptoms. |
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Cooper, Philip J.Vaca-Martínez, Gioconda MaritzaRodriguez, AlejandroChico, Martha E.Santos, D. N.Rodrigues, Laura C.Barreto, Mauricio LimaCooper, Philip J.Vaca-Martínez, Gioconda MaritzaRodriguez, AlejandroChico, Martha E.Santos, D. N.Rodrigues, Laura C.Barreto, Mauricio Lima2015-05-28T13:00:14Z20141468-3296http://repositorio.ufba.br/ri/handle/ri/17774v.69, n.3, p.232-9.BACKGROUND: Rural residence is protective against atopy and wheeze-rhinitis-eczema symptoms in developed countries, an effect attributed to farming and poor hygiene exposures. There are few data from developing countries addressing this question. We compared atopy and wheeze-rhinitis-eczema symptoms between urban and rural Ecuador, and explored the effects of farming and poor hygiene exposures. METHODS: We performed cross sectional studies of schoolchildren living in rural and urban Ecuador. Data on symptoms and farming/hygiene exposures were collected by parental questionnaire, atopy by allergen skin prick test reactivity and geohelminth infections by stool examinations. RESULTS: Among 2526 urban and 4295 rural schoolchildren, prevalence was: atopy (10.0% vs 12.5%, p=0.06), wheeze (9.4% vs 10.1%, p=0.05), rhinitis (8.1% vs 6.4%, p=0.02) and eczema (5.9% vs 4.7%, p=0.06). A small proportion of symptoms were attributable to atopy (range 3.9-10.7%) with greater attributable fractions for respiratory symptoms observed in urban schoolchildren. Respiratory symptoms were associated with poor hygiene/farming exposures: wheeze with lack of access to potable water; and rhinitis with household pets, no bathroom facilities and contact with large farm animals. Birth order was inversely associated with respiratory symptoms. Area of residence and atopy had few effects on these associations. CONCLUSIONS: Urban schoolchildren living in Ecuador have a similar prevalence of atopy, eczema and wheeze but a higher prevalence of rhinitis compared with rural children. Some farming and poor hygiene exposures were associated with an increase in the prevalence of wheeze or rhinitis while birth order was inversely associated with these symptoms.Submitted by Maria Creuza Silva (mariakreuza@yahoo.com.br) on 2015-05-28T13:00:14Z No. of bitstreams: 1 Barreto. 2014.pdf: 335655 bytes, checksum: 77a4aa35068cbe90207abc0a1bc0b559 (MD5)Made available in DSpace on 2015-05-28T13:00:14Z (GMT). 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dc.title.pt_BR.fl_str_mv |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
dc.title.alternative.pt_BR.fl_str_mv |
Thorax |
title |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
spellingShingle |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador Cooper, Philip J. Atopy Farming Hygiene Urban-Rural Wheeze-Rhinitis-Eczema |
title_short |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
title_full |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
title_fullStr |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
title_full_unstemmed |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
title_sort |
Hygiene, atopy and wheeze-eczema-rhinitis symptoms in schoolchildren from urban and rural Ecuador |
author |
Cooper, Philip J. |
author_facet |
Cooper, Philip J. Vaca-Martínez, Gioconda Maritza Rodriguez, Alejandro Chico, Martha E. Santos, D. N. Rodrigues, Laura C. Barreto, Mauricio Lima |
author_role |
author |
author2 |
Vaca-Martínez, Gioconda Maritza Rodriguez, Alejandro Chico, Martha E. Santos, D. N. Rodrigues, Laura C. Barreto, Mauricio Lima |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Cooper, Philip J. Vaca-Martínez, Gioconda Maritza Rodriguez, Alejandro Chico, Martha E. Santos, D. N. Rodrigues, Laura C. Barreto, Mauricio Lima Cooper, Philip J. Vaca-Martínez, Gioconda Maritza Rodriguez, Alejandro Chico, Martha E. Santos, D. N. Rodrigues, Laura C. Barreto, Mauricio Lima |
dc.subject.por.fl_str_mv |
Atopy Farming Hygiene Urban-Rural Wheeze-Rhinitis-Eczema |
topic |
Atopy Farming Hygiene Urban-Rural Wheeze-Rhinitis-Eczema |
description |
BACKGROUND: Rural residence is protective against atopy and wheeze-rhinitis-eczema symptoms in developed countries, an effect attributed to farming and poor hygiene exposures. There are few data from developing countries addressing this question. We compared atopy and wheeze-rhinitis-eczema symptoms between urban and rural Ecuador, and explored the effects of farming and poor hygiene exposures. METHODS: We performed cross sectional studies of schoolchildren living in rural and urban Ecuador. Data on symptoms and farming/hygiene exposures were collected by parental questionnaire, atopy by allergen skin prick test reactivity and geohelminth infections by stool examinations. RESULTS: Among 2526 urban and 4295 rural schoolchildren, prevalence was: atopy (10.0% vs 12.5%, p=0.06), wheeze (9.4% vs 10.1%, p=0.05), rhinitis (8.1% vs 6.4%, p=0.02) and eczema (5.9% vs 4.7%, p=0.06). A small proportion of symptoms were attributable to atopy (range 3.9-10.7%) with greater attributable fractions for respiratory symptoms observed in urban schoolchildren. Respiratory symptoms were associated with poor hygiene/farming exposures: wheeze with lack of access to potable water; and rhinitis with household pets, no bathroom facilities and contact with large farm animals. Birth order was inversely associated with respiratory symptoms. Area of residence and atopy had few effects on these associations. CONCLUSIONS: Urban schoolchildren living in Ecuador have a similar prevalence of atopy, eczema and wheeze but a higher prevalence of rhinitis compared with rural children. Some farming and poor hygiene exposures were associated with an increase in the prevalence of wheeze or rhinitis while birth order was inversely associated with these symptoms. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014 |
dc.date.accessioned.fl_str_mv |
2015-05-28T13:00:14Z |
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article |
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publishedVersion |
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http://repositorio.ufba.br/ri/handle/ri/17774 |
dc.identifier.issn.none.fl_str_mv |
1468-3296 |
dc.identifier.number.pt_BR.fl_str_mv |
v.69, n.3, p.232-9. |
identifier_str_mv |
1468-3296 v.69, n.3, p.232-9. |
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http://repositorio.ufba.br/ri/handle/ri/17774 |
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eng |
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