Table 2

Association between age of initiation (≤ 13 vs >13 years) on past 30-day use and tobacco dependence symptoms by tobacco product category, National Youth Tobacco Survey, 2014–2016

Outcomes*OR95% CI of ORAOR 95% CI of AOR
Past 30-day use on at least 1 day (yes vs no)
 Cigarettes 1.17 (1.06 to 1.29) 1.44 (1.27 to 1.62)
 Cigars 1.41 (1.26 to 1.58) 1.43 (1.24 to 1.64)
 Smokeless tobacco 1.58 (1.30 to 1.93) 2.07 (1.68 to 2.55)
 E-cigarettes0.90(0.80 to 1.02)0.87(0.75 to 1.01)
 Hookah 2.03 (1.66 to 2.48) 1.59 (1.18 to 2.13)
Daily use in the past 30 days (yes vs no)
 Cigarettes 2.17 (1.76 to 2.69) 3.31 (2.60 to 4.21)
 Cigars 4.90 (3.59 to 6.67) 5.43 (3.71 to 7.94)
 Smokeless 2.80 (2.14 to 3.68) 4.87 (3.62 to 6.55)
 E-cigarettes 1.50 (1.17 to 1.92) 2.42 (1.79 to 3.26)
 Hookah 9.30 (4.60 to 18.84) 7.55 (3.35 to 17.01)
Craving or feeling need to use tobacco in the past 30 days (yes vs no)
 Cigarettes 1.47 (1.32 to 1.63) 1.81 (1.59 to 2.06)
 Cigars 1.67 (1.45 to 1.92) 1.90 (1.60 to 2.25)
 Smokeless tobacco 1.69 (1.42 to 2.00) 2.90 (2.35 to 3.58)
 E-cigarettes 1.13 (1.01 to 1.27) 1.66 (1.43 to 1.93)
 Hookah 1.94 (1.47 to 2.55) 2.06 (1.50 to 2.82)
Time to first tobacco use in the morning (<30 min vs >30 min)
 Cigarettes 1.77 (1.43 to 2.18) 2.14 (1.72 to 2.66)
 Cigars 1.71 (1.38 to 2.14) 2.05 (1.61 to 2.61)
 Smokeless tobacco 1.55 (1.21 to 2.00) 1.75 (1.30 to 2.37)
 E-cigarettes0.92(0.72 to 1.18)1.02(0.74 to 1.42)
 Hookah1.53(0.92 to 2.55) 1.81 (1.06 to 3.09)
  • Bold font indicates OR with p value of <0.05.

  • *Logistic regression models were fitted for each tobacco product separately with the total of 20 models.

  • †Adjusted models controlled for current age, sex, race/ethnicity, survey year and use of other tobacco products on at least 1 day in the past 30 days that were not part of the outcome of interest. For example, adjusted models with cigarettes as the outcome were controlled for the following other tobacco products: cigars, cigarillos or little cigars; chewing tobacco, snuff or dip; e-cigarettes; pipe filled with tobacco (not water pipe); bidis (small brown cigarettes wrapped in a leaf); hookah or a water pipe used with tobacco; snus; dissolvable tobacco products and roll-your-own cigarettes.

  • ‡Includes either daily or someday use in the past 30 days.