Figure 3.

Self-reported tobacco and environmental exposure by sex.

Notes: Smokers included current smokers (smoking cigarettes/cigars/pipe at least once a day) and former smokers (not currently smoking, but had smoked at least 100 cigarettes in their lifetime and at some point smoked on a daily basis). Nonsmokers included those who had smoked fewer than 100 cigarettes in their lifetime or never smoked at all. Exposed environmentally included those reporting secondhand tobacco exposure in their home or that they had lived or worked in a location for more than a year where they were exposed to dust/fumes from cooking, burning, mining, welding, or something else.