Research Article

Increased Standardised Incidence Ratio of Malignant Pleural Mesothelioma in Taiwanese Asbestos Workers: A 29-Year Retrospective Cohort Study

Table 2

Observed and expected numbers and standardized incidence ratios for cancers among the male and female workers employed in asbestos-related factories.

Cancer typeMalesFemales
Obs. N.O.Exp. N.O.SIR
(95% CI)
Obs. N.O.Exp. N.O.SIR
(95% CI)

All cancers654413731.1 (0.47–0.49)18942357.8 (0.77–0.84)
Lip, oral cavity, and pharynx7261206.10.60 (0.56–0.65)2027.62 0.72 (0.44–1.12)
Major salivary glands2629.580.88 (0.57–1.29)65.79 1.04 (0.38–2.25)
Nasopharynx363439.58 (0.74–0.92)4339.62 1.09 (0.79–1.46)
Esophagus241378.2 (0.56–0.72)55.62 0.89 (0.29–2.08)
Stomach409591.48 (0.63–0.76)5876.96 (0.57–0.97)
Colon, rectum, and anus8725186.73 (0.16–0.18)147623.28 (0.20–0.28)
Liver and intrahepatic bile ducts12801971.02 (0.61–0.69)120143.87 (0.69–1.00)
Gall bladder and extrahepatic bile ducts4587.53 (0.37–0.69)916.64 0.54 (0.25–1.03)
Pancreas104167.71 (0.51–0.75)1923.64 0.80 (0.48–1.25)
Nose, middle ear, and sinuses1834.84 (0.31–0.82)14.14 0.24 (0.01–1.35)
Larynx86139.96 (0.49–0.76)31.77 1.69 (0.35–4.95)
Trachea, bronchus, and lung7581222.97 (0.58–0.67)123144.80 0.85 (0.71–1.01)
Retroperitoneum613.99 (0.16–0.93)43.95 1.01 (0.28–2.60)
Pleura (malignant mesothelioma)176.41 (1.54–4.25)10.60 1.67 (0.04–9.29)
Bone and articular cartilage1519.540.77 (0.43–1.27)24.41 0.45 (0.05–1.64)
Skin 205249.040.82 (0.71–0.94)4344.04 0.98 (0.71–1.32)
Female breast494493.63 1.00 (0.91–1.09)
Uterus and corpus uteri 7873.51 1.06 (0.84–1.32)
Cervix412238.08 1.73 (1.57–1.91)
Adnexa (including ovary)5367.28 0.79 (0.59–1.03)
Prostate307459.990.67 (0.59–0.75)
Bladder234310.720.75 (0.66–0.86)1926.25 0.72 (0.44–1.13)
Kidney96118.190.81* (0.66–0.99)1126.77 0.41 (0.20–0.74)
Renal pelvis and ureter 80114.290.70 (0.56–0.87)2114.77 1.42 (0.88–2.17)
Brain6086.820.69 (0.53–0.89)1516.10 0.93 (0.52–1.54)
Thyroid gland7691.610.83 (0.65–1.04)9188.98 1.02 (0.82–1.26)
Hodgkin lymphoma146233.450.63 (0.53–0.74)32.27 1.32 (0.27–3.87)
Non-Hodgkin lymphoma612.960.46 (0.17–1.01)2741.66 0.65* (0.43–0.94)
Leukemia118165.060.71 (0.59–0.86)2230.13 0.73 (0.46–1.11)
Others250393.350.64 (0.56–0.72)4471.68 0.61 (0.45–0.82)

, . Obs. N.O.: observed number. Exp. N.O.: expected number; 95% CI: 95% confidence interval.