Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil
Protective factors associated with atopy or asthma in rural areas include socioeconomic level, overcrowding, and helminth infection. However, little epidemiological information was originated from schistosomiasis areas. This study aimed to investigate factors associated with asthma in a schistosomia...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Parasitology Research |
| Online Access: | http://dx.doi.org/10.1155/2012/796820 |
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| author | Luciana S. Cardoso Daniela M. Costa Maria Cecília F. Almeida Robson P. Souza Edgar M. Carvalho Maria Ilma Araujo Ricardo R. Oliveira |
| author_facet | Luciana S. Cardoso Daniela M. Costa Maria Cecília F. Almeida Robson P. Souza Edgar M. Carvalho Maria Ilma Araujo Ricardo R. Oliveira |
| author_sort | Luciana S. Cardoso |
| collection | DOAJ |
| description | Protective factors associated with atopy or asthma in rural areas include socioeconomic level, overcrowding, and helminth infection. However, little epidemiological information was originated from schistosomiasis areas. This study aimed to investigate factors associated with asthma in a schistosomiasis endemic area. A questionnaire was used to obtain information on demographics, socioeconomic, and environmental features. The ISAAC questionnaire was used to identify individuals with asthma. Parasitological exam was done in all participants and skin prick test to aeroallergens in all asthmatics. Prevalence of Schistosoma mansoni infection was 57.4% and Ascaris lumbricoides, 30.8%. Asthma was found in 13.1% of the population, and 35.1% of them had a positive SPT. Active and passive smoking was positively associated with asthma, whereas A. lumbricoides was negatively associated. In a schistosomiasis hyperendemic region, current infection with A. lumbricoides is protective against asthma. However, we cannot rule out the involvement of S. mansoni infection in this process. |
| format | Article |
| id | doaj-art-721b64e293a9432b9dcf616cb280a105 |
| institution | Kabale University |
| issn | 2090-0023 2090-0031 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Parasitology Research |
| spelling | doaj-art-721b64e293a9432b9dcf616cb280a1052025-02-03T01:33:25ZengWileyJournal of Parasitology Research2090-00232090-00312012-01-01201210.1155/2012/796820796820Risk Factors for Asthma in a Helminth Endemic Area in Bahia, BrazilLuciana S. Cardoso0Daniela M. Costa1Maria Cecília F. Almeida2Robson P. Souza3Edgar M. Carvalho4Maria Ilma Araujo5Ricardo R. Oliveira6Serviço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilServiço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilServiço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilServiço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilServiço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilServiço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilServiço de Imunologia, Hospital Universitário Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, BrazilProtective factors associated with atopy or asthma in rural areas include socioeconomic level, overcrowding, and helminth infection. However, little epidemiological information was originated from schistosomiasis areas. This study aimed to investigate factors associated with asthma in a schistosomiasis endemic area. A questionnaire was used to obtain information on demographics, socioeconomic, and environmental features. The ISAAC questionnaire was used to identify individuals with asthma. Parasitological exam was done in all participants and skin prick test to aeroallergens in all asthmatics. Prevalence of Schistosoma mansoni infection was 57.4% and Ascaris lumbricoides, 30.8%. Asthma was found in 13.1% of the population, and 35.1% of them had a positive SPT. Active and passive smoking was positively associated with asthma, whereas A. lumbricoides was negatively associated. In a schistosomiasis hyperendemic region, current infection with A. lumbricoides is protective against asthma. However, we cannot rule out the involvement of S. mansoni infection in this process.http://dx.doi.org/10.1155/2012/796820 |
| spellingShingle | Luciana S. Cardoso Daniela M. Costa Maria Cecília F. Almeida Robson P. Souza Edgar M. Carvalho Maria Ilma Araujo Ricardo R. Oliveira Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil Journal of Parasitology Research |
| title | Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil |
| title_full | Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil |
| title_fullStr | Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil |
| title_full_unstemmed | Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil |
| title_short | Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil |
| title_sort | risk factors for asthma in a helminth endemic area in bahia brazil |
| url | http://dx.doi.org/10.1155/2012/796820 |
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