Reference

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,

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.

A better outcome in occupational asthma induced by isocyanates was associated with early diagnosis and early removal from isocyanates after the onset of asthma. (Better outcome may also relate to the shorter latency of occupational asthma induced by isocyanates). Outcome at a mean of 1.9 years was significantly better in those with a mandatory health surveillance programme.

BOHRF Associated Evidence Statements

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

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2++

The likelihood of improvement or resolution of symptoms or of preventing deterioration is greater in workers who have no further exposure to the causative agent.

**

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 diagnosis.

**

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.