Andrew, there's all kinds of tests showing that everything is related to cancer. We've gone round and round about it here.
The general concensus is that the benefit we get from stress reduction greatly outweighs any of the published "cigars cause cancer" documentation. Those, by the way, show very little correlation for non-inhalers, which is the way we smoke.
It still goes back to you. You could be that one guy in a million, and there may be a correlation. The odds would be real slim, but I'm a guy who won a 1 in a billion genetic malformation/concurrent disease lottery, so it doesn't seem at all far fetched to me.
Because of my illness I don't do many, many things from coffee to diet to activities to you name it. I sometimes don't smoke cigars if they seem to be affecting me adversely.
I've become a junior doctor specializing in neural disorders because of my condition. It all starts with Google. You'll not likely find the exact direct correlation studies you're looking for, but you'll find broad enough information that you can make very educated choices. I literally have hundreds of hours in study, that's what you have to put in to get educated.
My suggestion is to study the biology of cancer, get a good, sound understanding of the tests and terminology, then start looking for papers done by doctors who have done some more specific testing in the areas you're concerned.
Ultimately, in my instance, I've adopted an "everything in EXTREME moderation" lifestyle. I'll even do things I know I shouldn't, despite knowing there's going to be a severe price to pay the next day.
I'm not dealing with cancer, though.
You've got a far different scope, and what I have won't kill me. You're really going to have to amp up your game. Personally, were I in your shoes, I'd not do anything remotely connected to your problem. Meaning I'd give up cigars in a heartbeat. But I'd also give up lots of other things and adopt a completely different diet and lifestyle.
That's really all I can add except my prayers and support. God has carried me every minute of every day. He's able and willing to do the very same for you and yours.
