Your chance of dying is 100%. I'd rather enjoy some bacon every once in awhile then worry about single digit variations in my chances of getting cancer. I do tend to buy uncured bacon anyway though.
Re: "uncured" is really also cured, but using celery powder which is a source of naturally occurring nitrates, vs "industrially extracted nitrites/nitrates". The result being the same, the same substance used to prevent spoilage. Incidentally Celery is also high in oxalates, so if you tend to accumulate those (kidney stones) you might be better off with actually "cured" products in comparison with "uncured"