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.
Farmers with occupational asthma were challenged with an exposure to work-related dusts for up to 60 min, resulting in significant increases in airway resistance (Raw), thoracic gas volume (TGV) and specific airway resistance (sRaw) compared to baseline values. After mean period of 21 weeks, the farmers were subjected to a second challenge, but this time wearing a protective respiratory device (RD). Significant increases in Raw, TGV and sRaw were again observed, but were on average 50-80% smaller than increases seen when RDs were not worn. This shows that the use of respiratory devices in farmers with occupational asthma significantly reduced the degree of bronchial obstruction, but did not provide complete protection.
BOHRF Associated Evidence Statements
The BOHRF occupational asthma guidelines state that this reference is associated
with the following evidence statements
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