Table 4.

Observed number of deaths and standardized mortality ratio in the Estonian cohort of Chernobyl cleanup workers by cause of death, 1986–2011.

ICD-10	Cause of death	No. of deaths	SMR	95% CI
A00–Y98	All causes	1,018	1.02	0.96–1.08
A00–B99	Infectious diseases	17	0.85	0.49–1.36
A15–A16	Respiratory tuberculosis	16	1.03	0.59–1.68
C00–C97	Malignant neoplasms	178	1.14	0.98–1.31
C00–C14	Mouth, pharynx	20	1.82	1.11–2.81
C15–C26	Digestive organs	58	1.16	0.88–1.50
C33–C34	Trachea, bronchus, lung	48	1.08	0.79–1.43
C70–C72	Central nervous systema	10	1.75	0.84–3.22
C73	Thyroid glanda	0	0.00	0.00–8.60
C91–C95	Leukemia	4	0.92	0.25–2.37
C07–C08, C15, C16, C18, C33–C34, C40–C41, C44, C64–C68, C70–C73, C91–C95 (except C91.1)	Radiation-related sitesa	103	1.19	0.96–1.42
C01–C15, C18–C22, C32	Alcohol-related sitesa	53	1.64	1.23–2.15
I00–I99	Diseases of the circulatory system	284	0.93	0.82–1.03
I20–I25	Ischemic heart disease	137	0.88	0.73–1.03
I60–I69	Cerebrovascular disease	53	1.03	0.77–1.35
J00–J99	Diseases of the respiratory system	46	1.12	0.82–1.50
K00–K93	Diseases of the digestive system	56	0.99	0.75–1.29
	Other nonviolent causes	59	0.92	0.70–1.18
V01–Y98	External causes	357	1.06	0.95–1.17
V01–V99	Transport accidents	46	1.04	0.76–1.39
X60–X84	Suicide	90	1.30	1.05–1.60
X85–Y09, Y35, Y36	Homicide	28	0.74	0.49–1.07
Y10–Y34	Undetermined injury	19	1.00	0.60–1.57
F10, G31.2, K70, X45	Selected alcohol-related causes	92	1.04	0.84–1.28
R99	Unknown causes	21	1.09	0.67–1.66

^aFollow-up since 1994.