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Exposure to Secondhand Smoke and Secondhand E-Cigarette Aerosol Among Middle and High School Students

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Figure.
Frequency of self-reported exposure to secondhand smoke and secondhand aerosol from e-cigarettes in public during the past 30 days among US middle and high school students reporting any exposure, National Youth Tobacco Survey, 2017. Left: The frequency of secondhand smoke (SHS) exposure is calculated among respondents who reported being exposed to SHS (unweighted, n = 8,273). Right: The frequency of secondhand aerosol (SHA) exposure is calculated among respondents who reported being exposed to SHA (unweighted, n = 4,138). Percentages are based on weighted data.

Frequency of self-reported exposure to secondhand smoke and secondhand aerosol from e-cigarettes in public during the past 30 days among US middle and high school students reporting any exposure, National Youth Tobacco Survey, 2017.
Past 30-Day Exposure (number of days) Secondhand Smoke (SHS) Secondhand Aerosol (SHA) Total Students (SHS) (Weighted N) Total Students (SHA) (Weighted N)
1–2 days 47.3 47.6 6,220,000 3,170,000
3–9 days 30.0 30.0 3,940,000 2,000,000
10–29 days 12.9 13.3 1,700,000 880,000
30 days 9.8 9.1 1,280,000 600,000

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