Hi Mark,
My brother was diagnosed two years ago at the age of 40, a lot of the figures of people surviving up to 5 years are not always a way to guide yourself.
Myeloma is an illness that usually happens to older people so the stats are based on this and sometimes can be over 5 years old.Alot of patients may not have died with MM as were at late age when diagnosed.
Best to try and stay strong , really dark time when just been diagnosed, but my brother has had a stem cell transplant over 14mths ago and doing incredibly well, your dads age will be a plus