Which factors increase the probability of a favourable prognosis after a diagnosis of occupational asthma?

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2+

The likelihood of improvement or resolution of symptoms or of preventing deterioration is greater in workers who have shorter duration of symptoms prior to avoidance of exposure.

Evidence

Hudson P, Cartier A, Pineau L, Lafrance M, St Aubin JJ, Dubois JV, Malo JL , Follow-up of occupational asthma caused by crab and various agents , J Allergy Clin Immunol , 1985 ; 76 : 682-688

Park HS, Nahm DH , Prognostic factors for toluene di-isocyanate-induced occupational asthma after removal from exposure , Clin Exp Allergy , 1997 ; 27 : 1145-1150

Piirila PL, Nordman H, Keskinen HM et al , Long-term follow-up of hexamethylene di-isocyanate-diphenylmethane di-isocyanate-, and toluene di-isocyanate-induced asthma , Am J Respir Crit Care Med , 2000 ; 162 : 516-522

Rosenberg N, Garnier R, Rousselin X et al , Clinical and socio-professional fate of isocyanate-induced asthma , Clin Allergy , 1987 ; 17 : 55-61

Ross DJ, Mcdonald JC , Health and employment after a diagnosis of occupational asthma: a descriptive study , Occup Med (London) , 1998 ; 48 : 219-225

Tarlo SM, Banks D, Liss G et al , Outcome determinants for isocyanate induced occupational asthma among compensation claimants , Occup Environ Med , 1997 ; 54 : 756-761