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. 2019 Aug 15;9(8):e027247. doi: 10.1136/bmjopen-2018-027247

Table 2.

Final ENDS attributes, levels and mean utilities, n=660

ENDS attributes Levels of ENDS attributes Part-worth utilities,
mean (95% CI)
Harms of use Less harmful on my body as compared with tobacco cigarettes 88.96 (84.79 to 93.13)
Unknown harm on my body as compared with tobacco cigarettes −19.24 (−21.32 to 17.17)
Same amount of harm on my body as compared with tobacco cigarettes −22.45 (−24.90 to 19.99)
More harm on my body as compared with tobacco cigarettes −47.27 (−49.69 to 44.86)
General effects of use Helps me breathe easier and my clothes do not smell like tobacco 58.37 (55.07 to 61.68)
Helps me breathe easier but my clothes smell like tobacco −3.50 (−5.78 to 1.22)
Does not help me breathe easier but my clothes do not smell like tobacco −12.35 (−14.78 to 9.93)
Does not help me breathe easier but still makes my clothes smell like tobacco −42.52 (−45.15 to 39.89)
Tobacco cessation 7 of 10 people are able to quit tobacco cigarettes 41.92 (39.36 to 44.47)
5 of 10 people are able to quit tobacco cigarettes 19.98 (18.20 to 21.76)
2 of 10 people are able to quit tobacco cigarettes −12.79 (−14.84 to 10.73)
People are not able to quit smoking tobacco cigarettes −49.11 (−52.46 to 45.75)
Purchase price of product $5 one-time purchase 52.41 (49.12 to 55.70)
$55 one-time purchase 12.40 (11.02 to 13.77)
$115 one-time purchase −26.04 (−27.92 to 24.17)
$175 one-time purchase −38.76 (−40.95 to 36.57)
Monthly cost of use $5 per month to use 47.50 (44.72 to 50.29)
$25 per month to use 16.68 (15.00 to 18.37)
$65 per month to use −22.16 (−23.91 to 20.42)
$100 per month to use −42.03 (−44.37 to 39.68)
Nicotine content* None (0 mg/mL) 10.89 (6.83 to 14.96)
Low (6 mg/mL) 18.29 (16.16 to 20.41)
Medium (12 mg/mL) 2.11 (−0.01 to 4.23)
High (24 mg/mL) −31.30 (−35.12 to 27.47)
Flavour availability Available in fruit, candy, coffee, wine and other flavours 15.88 (13.32 to 18.44)
Available in tobacco and menthol flavours 13.50 (11.94 to 15.05)
Available without any flavours −29.38 (-32.27 to 26.48)
Device design Very similar in size, weight, appearance, and feel to a tobacco cigarette 12.85 (11.16 to 14.54)
Somewhat similar in size, weight, appearance, and feel to a tobacco cigarette 14.47 (12.87 to 16.07)
Not similar at all in size, weight, appearance and feel to a tobacco cigarette −27.32 (-29.98 to 24.66)
Modifiability Various parts can be modified 12.46 (10.68 to 14.23)
It cannot be modified −12.46 (-14.23 to 10.68)

*Nicotine levels corresponded to what the current literature designated as low, medium and high levels of nicotine.

ENDS, electronic nicotine delivery systems.