Table 1

Comparison of characteristics of union members included with those excluded from the study

Included in studyExcluded from study
CharacteristicPerson years in mortality studyMortality (n=19229)Incidence (n=17135)(n=11895)
Male sex106465.171.271.463.2
Resident in Queensland144347.198.998.895.7
Type of plant
    Poultry15943.310.411.017.7
    Red meat117398.378.077.069.0
    Retail6586.57.17.29.4
    Smallgoods6430.84.54.83.4
    Unknown000.4
Animal virus exposure
    Low70548.856.754.956.6
    Medium44491.026.727.826.7
    High31319.116.617.316.7
Animal blood exposure
    Low66212.451.049.151.0
    Medium63908.440.142.440.9
    High16238.28.18.58.1
Animal faeces exposure
    Low115326.580.779.980.1
    Medium23132.911.612.211.7
    High2309.51.31.41.3
    Unknown5590.16.46.56.4
Plastic product exposure
    Low120935.280.080.480.0
    Medium25423.920.019.620.0