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Prevention of sensitization to house dust mite by allergen avoidance in school age children: a randomized controlled study

Authors

  • S. H. Arshad,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • J. Bojarskas,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • S. Tsitoura,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • S. Matthews,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • B. Mealy,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • T. Dean,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • W. Karmaus,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • T. Frischer,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • J. Kuehr,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • J. Forster,

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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  • the SPACE study group

    1. The David Hide Asthma & Allergy Research Centre, St Mary‘s Hospital, Isle of Wight, UK,*University Children’s Hospital, Kaunas Medical University, Kaunas, Lithuania,†Department of Social Medicine. P & A Kyriakou Children's Hospital, Athens, Greece,‡Department of Epidemiology, Michigan State University, East Lansing, Michigan, USA,§University Children's Hospital, Vienna, Austria, and¶University Children's Hospital, Freiburg, Germany
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S. Hasan Arshad, The David Hide Asthma & Allergy Research Centre, St Mary’s Hospital, Newport, Isle of Wight PO30 STG, UK. E-mail: sha@soton.ac.uk

Summary

Background Sensitization to dust mites predisposes to asthma and allergic rhinitis, and prevention of this sensitization might reduce the rising prevalence of these disorders.

Objective To test the effectiveness of dust mite avoidance measures on the development of sensitization to dust mites in children.

Methods As part of a multicentre study (Study of Prevention of Allergy in Children of Europe), 242 children, aged 5–7 years, in three European countries (United Kingdom, Greece and Lithuania), were randomized to prophylactic group (n = 127) and control group (n = 115). At randomization these children were required to have a family history of atopy and positive skin test to an aeroallergen but not to house dust mite. Children in the prophylactic group were provided with dust mite impermeable mattress covers and advice on environmental measures to reduce exposure to dust-mite allergen. Control group children were given non-specific advice. After 12 months a standardized questionnaire was completed and skin prick tests were performed.

Results Ten children in the prophylactic group and 19 in the control group were lost to follow-up. Three of 117 (2.56%) children in the prophylactic group and nine of 96 (9.38%) in the control group developed sensitization to dust mites. Logistic regression analysis confirmed an independent effect of prophylactic measures (adjusted odds ratio (OR): 0.14, 95% confidence interval (CI): 0.03–0.79, P = 0.03). Fifteen children need to be treated to prevent sensitization in one child.

Conclusion Dust mite sensitization can be reduced in school age children with simple mite avoidance measures.

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