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by nulagrithom
2741 days ago
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Why are there conflicting reports on the stats from the CDC? The CDC's website[1] says there's been a 0.6% increase in vaping in middle school and 1.5% increase in high school since 2011. This advisory however says "E-cigarette use among U.S. middle and high school students increased
900% during 2011-2015, before declining for the first time during 2015-2017." Was there a nearly 899% drop in 2015-2017? https://www.cdc.gov/tobacco/data_statistics/fact_sheets/yout... |
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There aren't.
> The CDC's website[1] says there's been a 0.6% increase in vaping in middle school and 1.5% increase in high school
No, it doesn't. The 0.6% and 1.5% numbers appear, but as the base incidence in 2011 from which an increase occurred, not the percent increase. Quoting the relevant passage of your own source (emphasis added):
“Nearly 5 of every 100 middle school students (4.9%) reported in 2018 that they used electronic cigarettes in the past 30 days—an increase from 0.6% in 2011.”
“Nearly 21 of every 100 high school students (20.8%) reported in 2018 that they used electronic cigarettes in the past 30 days—an increase from 1.5% in 2011.”
There is a difference between an “an increase FROM x% IN 2011” and “an increase OF x SINCE 2011”; you seem to have confused the former for the latter.
The middle school increase reported is 717%; the high school increase reported is 1287%. There is nothing obviously inconsistent with aggregate 900% increase 2011-2015 with a slight aggregate decline thereafter.