Table 2

Baseline characteristics of participants who did and did not use varenicline

Used varenicline
(n=80)
Did not use varenicline
(n=124)
Difference
Age (SD)33.6 (11.6)30.4 (11.2)F=3.8, p=0.05
% women28.7%30.6%χ2 = 0.08
p=0.77
% in full-time employment72.5%75.0%χ2 = 0.01
P=0.92
FTCD (SD)4.9 (2.2)4.1 (2.1)F=6.2, p=0.01
Ethnicity (% White British)93.8%90.3%χ2 = 0.8
P=0.39
CPD (SD) now11.6 (5.1)9.2 (6.0)F=8.7, P<0.01
CPD (SD) before starting to vape20.7 (10.1)22.4 (8.6)F=1.7, P=0.20
Enjoyment of
smoking (SD)
6.2 (2.4)6.1 (2.5)F=0.09
P=0.77
Enjoyment of vaping (SD)7.2 (2.3)7.5 (2.3)F=0.69
P=0.41
Months of vaping (SD)18 (13.6)22 (36.9)F=1.01
P=0.32
E-liquid nicotine concentration (mg/mL) (SD)13.9 (9.9)9.3 (7.4)F=13.9, p<0.001
Using refillable EC (%)95.0%91.9%χ2 = 3.4
P=0.19
  • CPD, cigarettes per day; EC, e-cigarette; FTCD, Fagerstrom test of cigarette dependence.