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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

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

Reporters Year Survey period No. hibakusha or [NICa] No. cancer deaths (%) % Japanese average cancer deaths
Preston et al. [73] 2007 1958–1998 105,427 17,448 (16.6) 21.4 (1958–1998)
   [25,427] [3,994 (15.7)]  
Ozasa et al. [74] 2012 1958–2003 86,611 10,929 (12.6) 22.3 (1958–2003)
   [26,529] [NAb]  
Grant et al. [75] 2017 1958–2009 80,205 17,316 (21.5) 23.3 (1958–2009)
   [25,239] [5,222 (20.6)]  
  1. a, not-in-the-city; b, not available