Thread by @daniel_corcos

Is radiology the main cause of cancer?
(THREAD)
1/

We have shown that mammography screening has been followed by a large increase in breast cancer incidence. (Corcos & Bleyer, NEJM, 2020).
2/

From this, I conclude that mammography causes cancer. The knee-jerk reaction that « correlation is not causation » can be easily disproved:
3/

I.The correlation between cancer incidence and mammography screening is perfect, occurs every time and everywhere.
See for instance here: jamanetwork.com/journals/jamai…

4/

II. After the transient increase related to lead time, a persistent increase in cancer incidence is observed, occurring after 6 years.
biorxiv.org/content/10.110…
Breast cancers occur after the mammograms (Corcos & Bleyer, NEJM, 2020).
5/

III. A very strong increase can occur within 10 years (no role of confounders).
6/

IV. X-rays cause DNA breaks, and mutations cause cancers (any cancer biology textbook).
7/

V. Claims that medical x-rays are safe are lies based on no data.


8/

Is there something specific about mammograms that explains the number of cancers caused?
9/

No. 75% of breast cancers might be caused by radiation from various medical procedures.
ratical.org/radiation/CNR/…
10/

Is this specific for breast cancer ? Apparently not.
ratical.org/radiation/CNR/…
And age-adjusted cancer incidence is correlated to the human development index, which is correlated to availability of healthcare.
11/

There is good reason to check Gofman’s claim.
There are numerous reasons not to do it : money, power, liability. The forces that must be faced are gigantic.
We cannot stop there.
12/12

@threadreaderapp please UNROLL