Table 3 Risks of solid cancers in epidemiological studies of nuclear workers

From: Radiation-related occupational cancer and its recognition criteria in South Korea

					Mean			Number of event cases
Country	Study	Cohort size	Exposure period	Follow-up period	cumulative dose (mSv)	Person years	Types of events	Number of event cases	ERR (95% CI)	SMR or SIR (95% CI)
15-country	Cardis et al. (2007) [23]	407,391	1943-2000	1943-2000	19.4	5,192,710	Mortality	5,024 4,820	0.97 ^b(0.27, 1.8)^c 0.58 b (-0.1, 1.39)	^a1.03 (0.65, 1.53)
Korea	^aAhn et al. (2008) [64]	79,679	1984-2004 1984-2004	1992-2004 1989-2005	6.1 6.1	633,159 415,298	Mortality Morbidity	256 564	7.2 ^b(-5, 21) 2.6 (-4, 10)^b	0.73 (0.64, 0.82)
	Jeong et al. (2010) [65]	8,429	1978-2005	1992-2005	19.86	63,503	Incidence	96	2.06 (-191, 9)	1.06 (0.86, 1.29)
U.K.	Muirhead et al. (2009) [63]	174,541	1946-2001	1965-2001	24.9	3,900,000	Mortality Incidence	7,455 10,855	0.28 (-0.03, 0.62) 0.27 (0.00, 0.56)	0.84 (0.82, 0.86)
U.S.	Howe et al. (2004) [66]	53,698	Mid-1960s	1979-1997	25.7	698,051	Mortality	368	0.51 (-2.01, 4.64)	0.65 (0.59, 0.72)
Canada	Zablotska et al. (2014) [67]	45,316	1951-1994	1956-1994	21.64	613,648	Mortality	468	1.2 (-0.73, 4.33)	0.72 (0.66, 0.78)
France	Flamant et al. (2013) [30]	59,021	1950-2004	1968-2004	16.1	1,467,611	Mortality	2,312	0.34 ^b(-0.56, 1.38)	-
Germany	Merzenich et al. (2014) [68]	8,972	1966-2008	1991-2008	29.5	130,737	Mortality	119	-	0.63 (0.5, 0.8)
Japan	Akiba et al. (2012) [28]	200,583	1977-2002	1991-2002	12.2	1,373,000	Mortality	2,636	1.26 (-0.27, 3)	-
Russia	Shilnikova et al. (2003) [25]	21,557	1948-1997	1948-1997	810 mGy	720,000	Mortality	1,730	0.15 ^b(0.09, 0.2)	-
	Hunter et al. (2013) [26]	22,366	1948-2004	1948-2004	510 mGy	535,932	Incidence	1,447	0.07 (0.01, 0.15)	-

^a all cancer; ^b 90% confidence interval; ^c 15-country excluding Canada; ERR, excess relative risk; SMR, standardized mortality ratio; SIR, standardized incidence ratio

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