Table 2

Mortality of cohort from major categories of disease, 1946–2012

Cause of death	ICD codes		All workers				Workers with more than background exposure to styrene
Cause of death	ICD 9	ICD 10	Deaths observed	Deaths expected	SMR	95% CI	Deaths observed	Deaths expected	SMR	95% CI
All cancers	140–208	C00-C97	973	962.5	1.01	0.95 to 1.08	651	622.1	1.05	0.97 to 1.13
Circulatory disease	390–459	I00-I99	1283	1345.5	0.95	0.90 to 1.01	831	841.3	0.99	0.92 to 1.06
Respiratory disease	460–519	J00-J99	360	388.2	0.93	0.83 to 1.03	230	236.5	0.97	0.85 to 1.11
Digestive diseases	008–009, 520–579	K00-K93	109	120.3	0.91	0.74 to 1.09	72	77.5	0.93	0.73 to 1.17
Injury and poisoning	800–999	U509, V01-Y89	117	125.2	0.93	0.77 to 1.12	80	84.3	0.95	0.75 to 1.18
All Causes	001–999	A00-R99, U509, V01-Y89	3121	3225.9	0.97	0.93 to 1.00	2022	2036.1	0.99	0.95 to 1.04