GED

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Compared with Americans as a whole, smokers were far more likely to have a GED certificate and far less likely to have a postgraduate degree.

CDC: Fewer than 18% of American adults smoke cigarettes, a new low

The proportion of American adults who smoke cigarettes has hit a new low, new federal data show.

https://www.latimes.com/science/sciencenow/la-sci-sn-cigarette-smoking-rates-new-low-20141126-story.html#:~:text=Compared%20with%20Americans%20as%20a%20whole%2C%20smokers%20were%20far%20more%20likely%20to%20have%20a%20GED%20certificate%20and%20far%20less%20likely%20to%20have%20a%20postgraduate%20degree.%20