Reply #107: 20% of women dx w/ lung cancer = never smoked.

[Hannah Bell]

8% of men.

that's where the statistic comes from.

this doesn't equal "smoking 'causes' 9/10 lung cancers", even if the aha says it does.

the big difference with smoking v. other particulates is you inhale it directly in concentrated doses.

but it's also well-known that factors like poor nutrition, use of alcohol, asbestos exposure increase the likelihood of lung cancer from smoking.

so ditto with other sources of particulates.

it's not always either/or.