Burge PS, Occupational asthma in electronics workers caused by colophony fumes: Follow-up of affected workers, Thorax, 1982;37:348-353,

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.

39 electronics workers with occupational asthma were divided into 3 groups and were investigated and followed up 1-4 years later. 20 had left work after their initial diagnosis, 8 had been moved to alternative work within their original factories, and 11 were thought to have asthma unrelated to colophony exposure as they failed to react to colophony at presentation. Histamine reactivity had returned to normal in half the workers who had left their original factories, but in only one worker who had moved within her original factory suggesting that indirect exposure at work was sufficient to delay recovery of histamine reactivity. Only 2 of the 20 affected workers who had left their original factories were symptom free on follow-up, and most had a considerable reduction in their quality of life by continuing asthma.

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