No Wonder doctors CAN'T claim smoking as a cause of death - Quite simply - it PROBABLY WASN'T!!
So, by your numbers, why do smokers have a 27% greater chance of being dead at 80 than nonsmokers? You're making it sound like smoking causes premature death...You will find that
at 80 years old - after having smoked "a pack a day for 62 years - your chances of being dead BECAUSE OF SMOKING - Are about about 27% higher than a NEVER SMOKERS CHANCES!