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Table 2 Onset of tobacco product use (%) and estimated incidence ratio among youth never tobacco users

From: Youth susceptibility to tobacco use: is it general or specific?

 

Not susceptible

Susceptible

IRa (95% CI)

Betab (95% CI)

Cigarettes

1.1

3.6

3.2 (2.3, 4.6)

−0.04 (−0.13, 0.05)

Cigars

0.1

0.9

6.7 (2.5, 18.4)

0.01 (− 0.15, 0.17)

Cigarillos

0.4

4.2

9.4 (5.6, 16.0)

0.06 (− 0.01, 0.13)

Filtered cigars

0.1

0.3

3.8 (0.5, 27.9)

−0.09 (− 0.13, − 0.05)

Hookah

0.4

1.6

3.9 (1.9, 8.1)

−0.03 (− 0.15, 0.09)

E-Cigarettes

4.3

18.5

4.3 (3.6, 5.0)

0.08 (0.04, 0.13)

Snus

0.2

1.6

7.6 (2.4, 24.3)

−0.02 (−0.17, 0.14)

Smokeless Tobacco

0.2

2.6

12.9 (6.4, 26.1)

0.01 (−0.11, 0.12)

  1. aIR: incidence ratio estimated using generalized linear regression with a log link
  2. bBeta coefficients for the product-specific path were from the structural equation model, in which the estimate linking the susceptibility latent construct and the tobacco onset latent construct was 0.50 (95% CI = 0.42 to 0.58)
  3. Bold font indicates statistical significance at 0.05 level
  4. Data from PATH wave 4 and 4.5 youth surveys (n = 8841)