Sjostedt L, Willers S, Orbaek P, A follow-up study of laboratory animal exposed workers: the influence of atopy for the development of occupational asthma, Am J Ind Med, 1993;24:459-469,

BOHRF Original Authors' Main Conclusions

The original authors' main conclusions are taken from Abstract, Results and Discussion. They are decided upon by the authors of the BOHRF occupational asthma guidelines and form part of the guidelines.

In a 5-year follow-up study of 88 animal exposed laboratory technicians, the incidence of laboratory animal allergy (LAA), lung function, and the development of allergy test reactivity were investigated. Only 2 individuals developed test positive LAA rhinitis during the follow-up period. Furthermore, 1 subject who had previously had LAA rhinitis developed LAA asthma. In the remaining subjects the results of skin prick tests against laboratory animals and environmental allergens, total serum IgE levels, and lung function were unchanged. Atopy defined as parental and childhood allergy, raised total serum IgE levels, and positive skin prick tests against non-animal environmental allergens and non-laboratory animals were risk indicators for development of test positive LAA asthma. The low incidence of LAA during the 5-year follow-up is interpreted as a result of an early LAA development in atopic subjects.

BOHRF Associated Evidence Statements

The BOHRF occupational asthma guidelines state that this reference is associated with the following evidence statements

*** 2++ Atopy increases the risk of developing occupational asthma caused by exposure to many high molecular weight agents that induce the production of specific IgE antibodies.

Non Bohrf Information

This page is showing the information from the BOHRF occupational asthma guidelines for this reference. To see additional information, including opinions left by users of this website please view the full reference. This page allows users to comment on the reference and suggest it as evidence for questions. These may be the existing questions from the Bohrf occupational asthma guidelines or questions that have been put forward by users of this website.

Oasys and occupational asthma smoke logo