We assembled a cohort of 308 297 radiation-monitored workers employed for at least 1 year by
the Atomic Energy Commission, AREVA Nuclear Cycle, or the National Electricity Company in France,
the Departments of Energy and Defence in the USA, and nuclear industry employers included in the
National Registry for Radiation Workers in the UK. The cohort was followed up for a total of 8·22 million personyears.
We ascertained deaths caused by leukaemia, lymphoma, and multiple myeloma. We used Poisson regression
to quantify associations between estimated red bone marrow absorbed dose and leukaemia and lymphoma
mortality.