Work-exacerbated asthma in Canada often relatively short-lived

Work-exacerbated asthma as defined required pre-existing asthma in nearly all, no evidence of sensitasion, generally a history of worsening asthma with work exposure, and if specific challenges were done they had to be negative. Symptoms had to persist for >4 weeks. All had to have asthma confirmed. Acute iurriutant asthma was also excluded. This seems to be as good as you can get for a diagnosis of work-exacerbated asathma. The sickness absence data was taken from the compensation application form and seems to have no denominator. Nearly half reported no time off. Sickness absence for work-exacerbated asthma was more common in education and less in service industry workers and intermediate in healthcare workers.

References

	Lim T, Liss G M, Vernich L, Buyantseva L, Tarlo SM, Work-exacerbated asthma in a workers’ compensation population, Occup Med (Oxford), 2014;64:206-210,

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