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Published on: August 7, 2017
Environmental allergens and asthma morbidity in low-income children
Mary Turyk1, Luke Curtis, Peter Scheff
1Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, 60612, USA. mturyk1@uic.edu
Insights
High asthma rates in urban children are linked to indoor allergens. Exposure to Penicillium mold in bedrooms correlated with more frequent asthma symptoms, while cockroach allergen exposure was linked to a higher symptom count.
Area of Science:
- Environmental Health
- Pediatric Allergy
- Epidemiology
Background:
- Inner-city children in the U.S. experience high asthma morbidity.
- Poorly maintained housing may contribute to increased allergen exposure.
- Common indoor allergens include mold, dust mites, cockroach, and cat allergens.
Purpose of the Study:
- To investigate the relationship between specific indoor allergens and asthma morbidity in low-income urban children.
- To assess the impact of Penicillium, cockroach, dust mite, and cat allergens on asthma symptoms.
Main Methods:
- A study was conducted on 61 low-income children with asthma in Chicago.
- Asthma morbidity was examined in relation to allergen levels in participants' homes.
- Specific allergens measured included mold (Penicillium), cockroach, dust mite, and cat.
Main Results:
- Higher levels of Penicillium allergen in the bedroom were associated with more frequent asthma symptoms.
- Increased exposure to cockroach allergen in the bedroom correlated with a higher number of asthma symptoms.
- Respiratory infections were identified as a confounding factor for the association between cockroach allergen and the number of asthma symptoms.
Conclusions:
- Indoor allergen exposure, particularly to mold and cockroach, is associated with increased asthma morbidity in inner-city children.
- Environmental interventions targeting specific allergens in housing may help reduce asthma symptoms.
- Further research is needed to clarify the role of confounding factors like respiratory infections.
Abstract:
Asthma morbidity is high in inner-city children in the United States, which may be related in part to increased allergens in poorly maintained housing. This study examined asthma morbidity in relation to mold, cockroach, dust mite, and cat allergens in the homes of 61 low-income Chicago children with asthma. Children exposed to higher levels of Penicillium in the bedroom had more frequent asthma symptoms, whereas those exposed to higher levels of cockroach allergen in the bedroom had a higher number of asthma symptoms. Respiratory infections confounded the association of cockroach allergen with number of asthma symptoms.
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