Table 2

Comparison of self-reported to expert exposure assessments* for all jobs (n=327)

nSelf-reported exposure (%)Expert exposure assessment (%)McNemar test (p value)Kappa coefficientPhi coefficientSensitivitySpecificity
Formaldehyde28726.531.20.0090.600.6164.992.2
Glutaraldehyde2813.95.2NS0.520.5246.798.5
Bleach, chlorine32345.248.60.020.820.8286.895.1
Alcohol31364.992.4<0.00010.210.3269.190.9
Quaternary ammonium26516.663.3<0.00010.080.1520.292.2
Ammonia3097.418.3<0.00010.520.5939.7100.0
Sprays32239.335.20.010.840.8494.891.3
Latex gloves30080.771.3<0.00010.690.7298.663.9
  • * Specific exposures listed (more than 10 participants exposed).

  • Number of jobs without missing values for either of the two exposure estimates.

  • Job classified by experts as environmentally exposed (table E1 in online supplement) to formaldehyde (n=13), glutaraldehyde (n=12) or quaternary ammonium components (n=32) were excluded from the analyses of each concerned specific exposure.