Skip to main content
. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Tob Control. 2020 Oct 13;30(5):578–582. doi: 10.1136/tobaccocontrol-2020-055755

Figure 2. Changes in news and internet searches following the outbreak of vaping-induced pulmonary disease.

Figure 2.

A, Observed daily trend for news articles primarily warning about vaping from January 1, 2019 to February 18, 2020. B, The ratio of the observed to the forecasted expected daily trend for news articles primarily warning about vaping and the 95% PI of this ratio, which incorporates the uncertainty of the forecast and is shaded in light blue, for the period from the start of the outbreak (July 25, 2019) to the end of the interval (February 18, 2020). C, Observed daily trend for vaping cessation Google searches from January 1, 2019 to February 18, 2020. D, The ratio of the observed to the forecasted expected daily trend for vaping cessation Google searches and the 95% PI of this ratio, which incorporates the uncertainty of the forecast and is shaded in light blue, for the period from the start of the outbreak (July 25th, 2019) to the end of the interval (February 18, 2020). 95% PI = 95% Prediction Interval; Note: Trends from January 1, 2014 prior to July 25, 2019 were used to develop a forecast of expected values for the outbreak-era (presented in panels B & D), but trimmed in the time series we presented in panels A & C to improve the visibility of the trend.