Hi Robbo,
Have to agree that you face a difficult time proving anything from the figures.
There are many varieties of P.Ca. and they often behave differently. With widespread bone mets the psa figures become less reliable.
For example, a man could die with bone mets with a psa in the hundreds or more. Or, with a psa below 1.
As the cancer cells mutate, some daughter cells give off high psa . Others none - zero psa . So you can perhaps see that if very advanced, the psa may in fact be quite low but the cancer is romping away unseen. The treatment may have killed off some psa producing cells but not the others. Some men have died where the psa never went above say 10 whilst others have recorded figures in the many thousands.
I think we just have to accept that without national screening starting at say age 50, then some men will be diagnosed with very advanced disease as often there are few symptoms. Your husband may well have been like myself and others here where the problem started in our forties. Possibly early fifties in his case. Perhaps a way to look at it is that he had years of no treatment side effects. And such treatments may not have increased lifespan unless diagnosed in those very early years.
It is true that some GPs have dismissed Prostate Cancer as a disease of only elderly men but something has changed and more younger men are being affected. Environment; diet, lifestyle, pollution, modern chemicals - we still don't know what has caused this increase. All we know is that cancer has become a bigger health problem over the last fifty years.
All I can add is that many younger GPs are becoming more aware and the hope is that all will in time.
I do hope you will find peace of mind for yourself .