Effects of non-initial radiation exposure on solid cancer mortality risk among Hiroshima A-bomb survivors.

ABSTRACT:

Purpose

Exposure of atomic bomb (A-bomb) survivors to non-initial (residual) radiation and consequent health effects has not yet been reliably estimated. This study aimed to quantify the contribution of non-initial radiation to the increase in solid cancer mortality risk among A-bomb survivors in Hiroshima through a comparative analysis considering geographical factors.

Data

We analyzed the data of 43,056 (17,603 men and 25,453 women) A-bomb survivors registered in the A-bomb Survivor Cohort Database (ABS) at Hiroshima University. These subjects were aged <50 years old at the time of the bombing and lived in Hiroshima Prefecture as of 1 January 1970, after being exposed within 5.0 km of the hypocenter.

Methods

The radiation doses and excess deaths from all solid cance

SUBMITTER: Ohtaki M 

PROVIDER: S-EPMC12457108 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature