Table 5 Effect of changes in antibody levels on the incidence of work-related symptoms taking into account duration of exposure, host characteristics and smoking
OR (95% CI)
Determinants of work-related lower respiratory symptoms* (n = 13)
Delta IgG†0.001 (0.000 to 0.09)
Determinants of work-related rhinoconjunctivitis symptoms* (n = 19)
Delta IgG4†0.09 (0.01 to 0.55)
Smoking0.34 (0.13 to 0.90)
  • *Multivariate logistic regression of delta IgE, delta IgG, delta IgG4, adjusting for duration of exposure, baseline host characteristics (atopy, BHR, non-work-related rhinoconjunctivitis symptoms, non-work-related lower respiratory symptoms, physician-diagnosed asthma and smoking); †the OR values represent the change of risk by unit of change in antibody levels (expressed in OD).

  • 95% CI, 95% confidence interval; OR, odds ratio.