In the zero to 5 year group, girls are twice as likely to develop cancer at some point in their lives if exposed to ionizing (atomic) radiation, than are boys. Adult women are also less resistant than adult men -- adult females are 50% more likely to get cancer (not only breast cancer) than adult males.
Nuclear meltdowns have a beginning, but in the frame of human history there will be no "end" to Fukushima, Chernobyl or the other major radiological catastrophes our species has created to date...At Fukushima +2 very important NEWS about disproportionate harm from radiation is offered here. Gender matters (a lot) in the Atomic Age.