An excerpt from an interesting podcast from a researcher in Utah indicates:
.....the increase (in young women diagnosed with bc) was statistically large but not numerically large. And this is a very important difference to me and my listeners. The rate of advanced breast cancer in young women almost doubled, which sounds like a huge increase. But in absolute numbers, it went from 1.53 per 100,000 women per year in 1976 to 2.9 per 100,000 women per year. An absolute increase of a little over 1 per 100,000 women per year over the 36-year interval.
She also pointed our that obesity is a cancer risk and the incidence of obesity in young women has increased significantly over the same period.
The latter is certainly about what we are putting in our bodies, but not necessarily what we think of as chemical or environmental factors.
