Table 2 Agreement, sensitivity and specificity of self-reported exposure to vapours, gas, dust or fumes against job-exposure matrix classifications for 436 distinct jobs
Exposure statusJEM classification
Moderate–high exposure, n = 120Low exposure likelihood, n = 316κ Coefficient (95% CI)
VGDF0.31 (0.22 to 0.39)
    Exposure reported85 (71%)†108 (34%)
    Exposure not reported35 (29%)208 (66%)‡
Irritant gases or fumes*0.38 (0.29 to 0.48)
    Exposure reported67 (56%)†55 (17%)
    Exposure not reported53 (44%)261 (83%)‡
Biological materials*0.34 (0.25 to 0.43)
    Exposure reported77 (64%)†85 (27%)
    Exposure not reported43 (36%)231 (73%)‡
Synthetic organics*0.31 (0.21 to 0.41)
    Exposure reported53 (44%)†46 (15%)
    Exposure not reported67 (56%)270 (85%)‡
  • *Based on a multi-item check list (see fig 1).

  • †Values in parentheses indicate sensitivity; ‡values in parentheses indicate specificity.

  • JEM, job-exposure matrix; VGDF, vapours, gas, dust or fumes.