>Now that nicotine and smoking are declining, has lung cancer dropped in a similar rate?
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>I heard from a cancer nurse HPV is now one of the suspected causes of lung, but especially throat, mouth cancers that used to be blamed on tobacco.

Smoking and lung cancer rates are declining. Some but not all of the decline in cancer rates is likely due to smoking. However, some groups of people, such as women and some racial/ethnic groups (e.g., Black/African Americans), still have high rates. Smoking is still the number one cause of preventable disease and death in the US (450,000 last year). 80-90% of lung cancer deaths are attributable to smoking.