Table 7

Estimated Age-Related Gender-Averaged Incremental Risk for Solid Cancer Incidence and Mortality per Sievert of Radiation Exposure (BEIR VII Model)

Age at Exposure, yrs<1515-3030-4545-60>60
Incidence Risk
Excess Relative Risk/Sv0.78 (0.58, 1.06)0.63 (0.49, 0.81)0.42 (0.28, 0.62)0.43 (0.23, 0.79)1.7 (0.76, 3.8)
Excess Absolute Risk (cases/10,000 yrs·Sv)57 (43, 76)40 (30, 48)23 (16, 33)20 (11, 36)67 (35, 131)
Mortality Risk
Excess Relative Risk/Sv1.12 (0.80, 1.58)0.63 (0.46, 0.84)0.35 (0.22, 0.55)0.25 (0.10, 0.55)0.55 (0.19, 1.7)
Excess Absolute Risk (cases/10,000 yrs·Sv)29 (21, 39)18 (14, 25)12 (8, 19)8 (4, 19)17 (6, 45)

Adapted from BEIR VII (12).

  • Note: Large confidence intervals for age >60 years reflect smaller study cohort size.