Table 5

SMRs for workers in different departments in the rubber industry for selected causes of death during 1967–2015 (using England and Wales reference rates)

Cause of deathJob groupsTest for homogeneity (Χ2)P values
Crude materialsPreprocessingCuring/vulcanisingFinishing
nSMR95% CInSMR95% CInSMR95% CInSMR95% CI
All causes
 Including missing cause of death35781.191.15 to 1.2374411.141.12 to 1.1744341.141.10 to 1.1718 7281.071.06 to 1.0949.8<0.001
 Excluding missing cause of death33591.171.13 to 1.2170371.121.09 to 1.1541931.111.08 to 1.1517 6531.051.03 to 1.0649.72<0.001
All neoplasms9721.241.16 to 1.3220641.191.14 to 1.2412441.191.12 to 1.2549471.081.05 to 1.1125.11<0.001
All causes excluding neoplasms23881.141.10 to 1.1949761.091.06 to 1.1229491.081.06 to 1.1212 7121.031.02 to 1.0527.07<0.001
All malignant neoplasms (MN)9561.241.16 to 1.3220371.201.14 to 1.2512281.201.13 to 1.2648801.091.06 to 1.1224.02<0.001
MN larynx91.400.64 to 2.66141.000.54 to 1.674--350.950.66 to 1.323.480.323
MN oesophagus280.940.62 to 1.35831.220.97 to 1.51481.150.85 to 1.531740.990.84 to 1.143.360.339
MN stomach cancer861.421.14 to 1.751801.401.20 to 1.62891.160.93 to 1.434131.211.10 to 1.334.380.223
MN trachea, bronchus and lung3931.471.32 to 1.627751.341.25 to 1.444671.351.23 to 1.4717451.151.10 to 1.2127.52<0.001
MN prostate760.930.75 to 1.171650.890.76 to 1.041231.100.92 to 1.325211.040.95 to 1.134.390.222
MN bladder391.130.83 to 1.551071.411.16 to 1.70541.180.91 to 1.552171.060.93 to 1.225.640.131
Multiple myeloma90.890.46 to 1.71220.970.64 to 1.48151.090.66 to 1.81591.000.77 to 1.290.250.969
Leukaemia231.290.86 to 1.94411.020.75 to 1.38281.150.79 to 1.671030.970.80 to 1.181.80.614
Non-Hodgkin’s lymphoma120.770.44 to 1.36350.980.71 to 1.37170.780.49 to 1.26790.860.69 to 1.070.910.824
Circulatory diseases15121.131.08 to 1.1932061.111.07 to 1.1518381.061.02 to 1.1180711.041.02 to 1.0714.040.003
Ischaemic heart disease9611.131.06 to 1.2019991.091.04 to 1.1411661.061.00 to 1.1252231.071.05 to 1.102.650.448
Respiratory diseases5121.291.18 to 1.4110241.181.11 to 1.266471.261.16 to 1.3625471.071.03 to 1.1126.55<0.001
Bronchitis1011.251.03 to 1.521851.171.01 to 1.351021.120.93 to 1.364541.030.94 to 1.134.220.239
Emphysema120.890.51 to 1.57270.930.64 to 1.35201.150.74 to 1.781041.341.11 to 1.634.200.241