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. Author manuscript; available in PMC: 2019 Jan 4.
Published in final edited form as: Prev Med. 2018 Apr 17;112:130–137. doi: 10.1016/j.ypmed.2018.04.022

Table 3:

Self-reported exposure to free samples (n=3460) and special offers (n=1186) in the last 6 months (Aug 2013-Mar 2015), by country and demographics.

IN THE LAST SIX MONTHS, HAVE YOU RECEIVED ANY OF THE FOLLOWING E-CIGARETTE PRODUCTS?
FREE SAMPLES SPECIAL OFFERS

(n)a % Exposedb AOR (95% CI) (n)a % Exposedb AOR (95% CI)
Country
    US 1799 13.3 N/A N/A N/A
    Canada 475 2.3 0.33 (0.15–0.70) N/A N/A N/A
    UK 734 6.0 0.76 (0.48–1.23) 734 12.5 3.50 (1.68–7.31)
    Australia 452 2.5 0.25 (0.11–0.54) 452 3.8
Sex
    Female 1883 9.1 1.13 (0.82–1.55) 653 6.8 0.58 (0.34–0.98)
    Male 1577 8.5 533 11.2
Age
    18–24 186 8.8 1.40 (0.69–2.86) 49 9.9 1.31 (0.38–4.53)
    25–39 783 12.9 3.20 (2.08–4.93) 248 11.3 1.23 (0.66–2.36)
    40–54 1098 8.3 2.05 (1.32–3.20) 432 7.6 0.78 (0.41–1.47)
    55+ 1393 4.1 457 8.5
Ethnicity
    White 2948 8.3 1.07 (0.73–1.57) 1104 9.0 0.76 (0.30–1.91)
    Non- white 512 11.3 82 11.0
Education
    Low 1361 10.1 510 8.3
    Medium 1347 8.9 0.90 (0.64–1.25) 380 10.4 1.37 (0.74–2.52)
    High 752 6.1 0.60 (0.39–0.94) 296 8.9 0.88 (0.46–1.68)
Income
    Low 1044 12.0 302 7.2
    Medium 1044 8.0 0.86 (0.58–1.29) 349 8.7 1.08 (0.52–2.25)
    High 1201 7.9 0.95 (0.66–1.37) 439 10.7 1.32 (0.68–2.55)
    No answer 171 1.0 0.23 (0.05–1.15) 96 8.6 1.21 (0.43–3.37)
Smoking status
    Quitter 491 4.4 171 16.7
    Daily 2618 9.9 2.17 (1.30–3.64) 930 8.0 0.58 (0.28–1.20)
    Non-daily 351 6.9 0.90 (0.46–1.76) 85 7.0 0.58 (0.21–1.64)
E-cigarette status
    Not at all 1926 4.9 626 4.4
    Daily 417 11.9 2.67 (1.65–4.33) 169 24.0 5.42 (2.70–10.89)
    Weekly 347 18.3 3.48 (2.19–5.53) 106 19.6 4.19 (1.91–9.17)
    Monthly 770 12.4 2.25 (1.53–3.33) 285 7.8 1.88 (0.97–3.63)
Survey mode
    Telephone 805 2.5 0.35 (0.20–0.63) 357 6.7 0.67 (0.38–1.15)
    Internet 2655 10.6 829 10.2
a

Unweighted data

b

Weighted data

AOR = Adjusted Odds Ratio, CI= Confidence Interval