Yes cancer is predominantly a disease of old people - it's the accumulation of damage to their cells that probably makes them more vulnerable. So the longer the population live, the more cancers they will produce. Its about statistics, not individuals. Cancer research UK has excellent graphs showing incidence, mortality etc.
www.cancerresearchuk.org/cancer-info/cancerstats/
Cancer down to bad luck in some cases, a genetic disposition in a few and factors like smoking and alcohol in very many. Smoking is obviously the most risky thing you can do (other than working unprotected with radioactive materials). Lung cancer is on the rise in women as we heard the other day:
www.nhs.uk/news/2015/01January/Pages/Female-lung-cancer-deaths-may-outstrip-breast-cancer-in-2015.aspx
The idea of self referral is more than a bit crazy i think, given our useful system in the UK where GPs act as gatekeepers to filter the people that need to see a consultant. Typical headline grabbing daft idea in run up to election.
However you might make a case for one or two types of cancers - e.g. breast. If you have a definite lump in your breast you need to get it checked. But book-yourself-a-mammagram-online would have problems - for instance pre-menopausal breasts are rather opaque to x-rays and therefore a cancer can't be seen in younger women. And as we all know there are other signs of breast cancer...
There was another example last week when Public Health England were urging people with heartburn to see their doctors to get checked for cancer. Yes - long term acid reflux can cause cancer. (Putting out this press release in the middle of the peak season for flu must have really pleased the GPs. ) Imagine if everyone with heartburn referred themselves for endoscopy - those in genuine need would get stuck in a very, very long queue.
Crun the number of older people in a surgery is going to vary a great deal between retirement-belt areas and a place like Milton Keynes (at one time had the youngest population in Europe). Hence cancer rates and GP workloads will vary. Also poorer people are on average a darn sight sicker, sooner than richer people.
It is notoriously difficult to compare cancer outcomes between countries. This is because screening varies and so does diagnosis. Imagine 2 countries with identical prostate cancer rates. Country 1 has no screening, it is not even mentioned. Many old men have prostate cancer without knowing it and they die of other things quite often, before the cancer spreads. However in those where it does get beyond a certain point, it is quite hard to cure.
Country 2 is very busy screening and doing biopsies on a big percentage of men over 70. Lots of them are diagnosed as having prostate cancer and lots of them are pronounced "cured" because it is picked up early and dealt with.
In this particular instance we really don't know which of these two approaches would lead to fewer prostate-related deaths - in country 2 surgery might end up killing off quite a few that would have otherwise survived.
You cannot really compare these 2 countries and say that one has a better rate of cure or better diagnosis than the other.
Even something as simple as the way in which causes of death are captured on death statistics can make one country look different to another.
Shingles and pneumococcal vaccines side effects


