Table 2. Observed and excess leukemia deaths observed up to 2000 in the exposed group according to radiation dose.

Weighted marrow dose (Gy)	Subjects	Deaths		Attributable risk (%)
		Observed	Estimated excess
0.005–0.1	30,387	69	4	6
0.1–0.2	5,841	14	5	36
0.2–0.5	6,304	27	10	37
0.5–1.0	3,963	30	19	63
1.0–2.0	1,972	39	28	72
>2.0	737	25	28	100
Total	49,204	204	94	46

Data are from Preston et al. (2004), as reported in RERF (2014).