Table 1. Observed and excess solid cancers observed up to 1998 in the exposed group, according to radiation dose.

Weighted colon dose (Gy)	LSS subjects	Cancers		Attributable risk (%)
		Observed	Estimated excess
0.005–0.1	27,789	4406	81	1.8
0.1–0.2	5,527	968	75	7.6
0.2–0.5	5,935	1144	179	15.7
0.5–1.0	3,173	688	206	29.5
1.0–2.0	1,647	460	196	44.2
>2.0	564	185	111	61.0
Total	44,635	7851	848	10.7

This is a simplified version of Table 9 in Preston et al. (2007), which tabulates all cancers observed from 1958 through 1998 among 105,427 LSS cohort members. LSS, Life Span Study.