Low-dose radiation from A-bombs elongated lifespan and reduced cancer mortality relative to un-irradiated individuals

Table 2 Comparison of solid cancer mortality in the lifespan study of A-bomb survivors with Japanese cancer mortality. Japanese average cancer deaths were calculated by dividing cancer deaths by total deaths each year during 1958–2009 [69]. Averages corresponding to survey periods were determined

Reporters	Year	Survey period	No. hibakusha or [NIC^a]	No. cancer deaths (%)	% Japanese average cancer deaths
Preston et al. [73]	2007	1958–1998	105,427	17,448 (16.6)	21.4 (1958–1998)
Preston et al. [73]			[25,427]	[3,994 (15.7)]
Ozasa et al. [74]	2012	1958–2003	86,611	10,929 (12.6)	22.3 (1958–2003)
Ozasa et al. [74]			[26,529]	[NA^b]
Grant et al. [75]	2017	1958–2009	80,205	17,316 (21.5)	23.3 (1958–2009)
Grant et al. [75]			[25,239]	[5,222 (20.6)]

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