Table 4

Leukaemia ERR at 100 mGy exposure by subtype and by study

StudyNon-CLLAMLCMLCLL
Current study0.090.220.29−0.03
(95% CI −0.17 to 0.65)(95% CI −0.19 to 1.2)(95% CI <0 to 2.6)(95% CI −0.16 to 0.74)
264 decedents150 decedents52 decedents74 decedents
LCCS3 40.26NRNR−0.20
(95% CI <−0.10 to 1.03)(95% CI <0 to 1.4)
184 decedents43 decedents
15-country study*7 300.196−0.411.0−0.17
(90% CI −0.026 to 0.59)(90% CI −0.76 to 0.17)(90% CI −0.086 to 4.02)(95% CI −0.89 to 0.40)
196 decedents81 decedents45 decedents47 decedents
Three-country study310.220.341.1−0.09
(90% CI 0.013 to 0.57)(90% CI <0 to 1.49)(90% CI 0.29 to 3.09)(90% CI <0 to 0.73)
119 decedents32 decedents28 decedents27 decedents
NRRW60.170.120.33<−0.19
(90% CI 0.006 to 0.43)(90% CI −0.12 to 0.65)(90% CI 0.04 to 0.93)(90% CI <−0.19 to 0.12)
198 decedents102 decedents44 decedents69 decedents
LSS†260.470.430.64NR
(90% CI 0.35 to 0.64)(90% CI 0.27 to 0.66)(90% CI 0.30 to 1.37)
310 decedents‡124 decedents58 decedents
  • *AML and CLL results were calculated using a log-linear relative risk model of the form RR(d)=exp(βd) and ERR=RR−1.

  • †Based on a linear ERR model without effect modification of the form ERR(d)=βd.

  • ‡Also included seven CLL cases and 121 leukaemias not specified as AML or CML.

  • AML, acute myeloid leukaemia; CML, chronic myeloid leukaemia; CLL, chronic lymphocytic leukaemia; ERR, excess relative risk; LCCS, NIOSH Leukaemia Mortality Case control Study; LSS, Life-Span Study of Japanese Atomic Bomb Survivors; NC, not calculable; NR, not reported; NRRW, UK National Registry of Radiation Workers.