Respondents who don't currently smoke were asked "How long has it been since you quit smoking cigarettes?" Those who responded by choosing the category 7-24 months were identified as the group comprising recent successful quitters
In a similar report on smokeless tobacco products, the CDC estimated that 5.9 million US adults, or nearly 2.4% of the adult population in the United States, use smokeless tobacco daily
Tobacco followed closely behind in second place
Although users can partially titrate (for example, fewer puffs, shorter sessions), titration is imperfect and varies by experience, product type and setting, particularly with concentrates and high-efficiency devices
e-cigarette emissions, including nicotine, propylene glycol, flavorings, nitrosamine, and metals, might have adverse effects on cardiovascular health