Statistics are NOT evidence. If there is a causal connection, then why don't all female heavy smokers have it? And if you're going to use statistics, why don't ALL smokers get lung cancer? Only ten percent do...so the smokenazis have to come up with other diseases "related" by statistics to smoking.
Statistics lie. Statistics are NOT evidence. The fact that people who claim to be scientists use statistics as proof of anything simply means that they don't have the inclination to do real science.
Snake bites cause death. Why don't all people that get snake-bit die?