Table 1—

Characteristics of 87 subjects with toluene diisocyanate (TDI) asthma at the time of diagnosis and the follow-up visit

DiagnosisFollow-up
Age yrs38.0±1.248.7±1.2#
Sex
 Male63
 Female24
Smoking habits
 Nonsmoker63.2%63.2%
 Exsmoker28.7%29.9%
 Current smoker8.0%6.9%
Atopic status23.0%28.7%
Duration of exposure yrs12.0±0.9
Duration of symptoms yrs3.8±0.5
Current exposure
 Yes15.0%
 No85.0%
Symptoms of asthma100%71.0%
Type of asthmatic reaction
 Immediate20.7%
 Late alone54.0%
 Dual25.3%
  • Data are presented as mean±sem unless otherwise stated

  • #: significantly different from age of diagnosis by use of Mann-Whitney test

  • p<0.001

  • : significantly different from symptoms at diagnosis by use of the Chi-squared test

  • p<0.001