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. Author manuscript; available in PMC: 2023 Oct 2.
Published in final edited form as: Prev Med. 2019 Dec 6;131:105951. doi: 10.1016/j.ypmed.2019.105951

Table 1b.

Free sample receipt by demographic characteristics and coupon or promotion receipt among youth ages 12–17 years at Wave 2 (2014–2015) and Wave 3 (2015–2016).

Wave 2 (2014–2015) Wave 3 (2015–2016)
Free sample of any tobacco product in past 30 days Free sample of any tobacco product in past 30 daysa Free sample of E-cigarette or E-liquid in past 30 days
Count (weighted %) [SE] 71 (0.73) [0.09] 42 (0.47) [0.1] 93 (1.05) [0.11]
Weighted population 149,693 96,481 215, 067
Total N 9302 7568 9299
Weighted % (95%CI) Weighted % (95%CI) Weighted % (95%CI)
Demographics (at wave 2)
Age
 12–14 years 0.69 (0.46, 1.02) 0.4 (0.28, 0.93) 0.67 (0.45, 1.01)
 15–17 years 0.76 (0.54, 1.07) 0.6 (0.38, 1.0) 1.33 (1.03, 1.72)
Gender
 Female 0.56 (0.37, 0.84) 0.39 (0.22, 0.70) 0.91 (0.66, 1.27)
 Male 0.88 (0.65, 1.20) 0.76 (0.48, 1.21) 1.19 (0.90, 1.59)
Race/ethnicity
 White, Non-Hispanic 0.62 (0.43, 0.88) 0.61 (0.34, 1.08) 1.1 (0.87, 1.51)
 Black, Non-Hispanic 1.21 (0.71, 2.06) d 0.98 (0.44, 2.20)d 0.86 (0.46, 1.62)
 Hispanic or Latino 0.88 (0.58, 1.32) d 0.38 (0.18, 0.79)d 0.9 (0.63, 1.43)
 Otherb 0.33 (0.12, 0.92) d 0.33 (0.10, 1.03)d 1.0 (0.50, 2.38)d
Receipt of coupon or promotionc
 Yes 5.64 (3.76, 8.38) 3.38 (2.05, 5.54) 6.59 (4.91, 8.79)
 No 0.48 (0.35, 0.65) 0.31 (0.17, 0.55) 0.58 (0.43, 0.80)

Note. The Wave 3 all-wave weights were used for the analyses presented in this table. Therefore, the individuals represented in this table had to be present at all three waves – Wave 1, Wave 2, and Wave 3. Bolded values indicate statistical significance (p < 0.05) based on a chi-square test.

a

Receipt of Wave 3 free tobacco product sample receipt was asked only to those 12–17 years old at Wave 3. Since we used age at Wave 2 as our definition for youth and adults in this analysis, free tobacco product sample receipt at Wave 3 does not include the 1737 youth who turned 18 years old between Wave 2 and Wave 3.

b

Other race/ethnicity includes American Indian/Alaskan Native, Non-Hispanic; Asian, Non-Hispanic; NH or OP, Non-Hispanic; more than one race, Non-Hispanic.

c

At Wave 2, youth were asked whether they received a coupon or promotion for a tobacco product or e-cigarette in the past 30 days. At Wave 3, youth were asked whether they received coupons or promotions for tobacco products in the past 12 months. Youth at Wave 3 were asked about receipt of coupons or promotions for shisha or hookah tobacco. This item was not asked of adults at Wave 3 or of adults or youth at any prior waves.

d

Estimate has been flagged because it is statistically unreliable. It is based on a sample size of less than 50, or the coefficient of variation of the estimate is larger than 30%.