TABLE 3

Incidence of Tobacco Use Initiation, Increased Frequency of Tobacco Use, Progression to Poly-Tobacco Product Use, and Tobacco Use Cessation by Baseline Engagement With Online Tobacco Marketing

Tobacco Use InitiationaIncreased Frequency of Tobacco Useb
NoYesPNoYesP
Online engagementNoN = 7232N = 957<.001N = 10 088N = 463<.001
88.1%11.9%95.6%4.4%
(87.4%–88.9%)(11.1%–12.6%)(95.2%–96.0%)(4.0%–4.8%)
YesN = 712N = 166N = 1294N = 151
80.5%19.5%89.7%10.3%
(77.7%–83.3%)(16.7%–22.3%)(88.0%–91.3%)(8.7%–12.0%)
Progression to Poly-Tobacco Product UsecTobacco Use Cessationd
NoYesPNoYesP
Online engagementNoN = 9516N = 227<.001N = 1137N = 325.02
97.6%2.4%78.5%21.5%
(97.3%–97.9%)(2.1%–2.7%)(76.3%–80.7%)(19.3%–23.7%)
YesN = 1125N = 60N = 339N = 68
94.2%5.8%83.9%16.1%
(92.8%–95.7%)(4.3%–7.2%)(80.2%–87.6%)(12.4%–19.8%)
  • Each cell contains the count, point estimate of the incidence, and CI of the incidence (within parentheses). All percentages are weighted. The P value is based on weighted χ2 tests.

  • a Among baseline tobacco never-users (N = 9067 respondents with follow-up).

  • b Among baseline tobacco never- and ever-users (N = 11 996 respondents with follow-up).

  • c Among baseline tobacco never-users and single tobacco product users (N = 10 928 respondents with follow-up).

  • d Among baseline past-year tobacco users (N = 1869 respondents with follow-up).