Table 4

 Mesothelioma and exposure

Years of employmentProportional mortality*Mortality/cohort†
*Using only exposure data provided.
†Using above plus assumed exposure for 64 with no start date or exposure data recorded (median value of 7 months used).
<117/260(6.5%)36/594(6.1%)
1–12/115(10.4%)12/203(5.9%)
2–7/75(9.3%)7/132(5.3%)
⩾39/39(23.1%)10/78(12.8%)
Based on45 cases/489 all causes65 cases/1007 in cohort