Table 2

Prevalence of main motivation for using e-cigarettes among current e-cigarette users according to sociodemographics, smoking habits and patterns of using e-cigarettes in Barcelona, Spain (2015)

nQuit smoking tobacco (n=235)Reduce smoking tobacco (n=288)Use in places where tobacco is prohibited (n=61)
%P valueOR (95% CI)%P valueOR (95% CI)%P valueOR (95% CI)
Overall58439.248.010.2
Sex0.153*0.984*0.041*
 Male21442.91.19 (0.84 to 1.68)47.916.81
 Female37037.0148.01 (0.72 to 1.4)12.11.87 (1.02 to 3.43)
Age (years)<0.001†0.005†<0.001*
 <2513917.9160.04.53 (0.88 to 23.28)21.44.36 (1.99 to 9.57)
 25–4429143.83.59 (2.2 to 5.85)46.22.59 (0.51 to 13.04)7.41.27 (0.57 to 2.83)
 45–6414647.74.12 (2.45 to 7.18)41.82.16 (0.42 to 11.06)5.91
 ≥65875.013.8 (2.62 to 72.41)25.010.0Added to previous
Education level0.016*0.043*0.184*
 Primary or less5338.21.22 (0.66 to 2.26)41.8116.41.73 (0.76 to 3.96)
 Secondary28433.7153.31.59 (0.88 to 2.87)10.71
 University or more24745.71.44 (1.01 to 2.06)43.31.16 (0.64 to 2.12)8.31.04 (0.56 to 1.92)
Time smoking e-cigarette<0.001*<0.001*<0.001*
 <6 months22119.0165.25.45 (1.40 to 21.18)15.83.31 (1.52 to 7.23)
 6–12 months13942.42.76 (1.71 to 4.46)42.42.28 (0.58 to 8.96)11.82.97 (1.28 to 6.93)
 1–2 years21255.24.46 (2.88 to 6.90)35.91.76 (0.45 to 6.77)4.01
 ≥2 years1275.010.22 (2.57 to 40.62)25.010.0Added to previous
E-cigarette contains nicotine0.015*0.054*<0.001*
 Yes33243.51.30 (0.92 to 1.84)51.51.54 (1.10 to 2.16)3.91
 No25233.7143.6118.24.58 (2.39 to 8.76)
Main flavour0.001*<0.005*<0.001*
 Tobacco29042.21.58 (0.98 to 2.56)53.72.52 (1.49 to 4.27)2.71
 Fruit11328.2145.31.59 (0.87 to 2.90)23.18.72 (3.76 to 20.26)
 Menthol10231.81.10 (0.61 to 1.97)47.71.84 (1.00 to 3.38)15.95.92 (2.44 to 14.34)
 Others7953.72.54 (1.39 to 4.67)31.7111.04.47 (1.65 to 12.09)
Smoking status (current)<0.001*<0.001*<0.001*
 Smoker38832.5163.78.00 (5.30 to 12.09)3.11
 Non-smoker19651.72.33 (1.63 to 3.33)18.7123.410.60 (5.40 to 20.82)
Number of cigarettes smoked currently0.103*0.049*0.187†
 <1022633.61.35 (0.85 to 2.14)63.32.08 (0.83 to 5.19)3.11.53 (0.39 to 6.02)
 10–1914028.0167.82.63 (1.03 to 6.72)2.11
 ≥202250.02.21 (0.87 to 5.61)40.919.14.23 (0.65 to 27.66)
Smoking status (before)0.001*<0.001*<0.001*
 Smoker51541.82.16 (1.21 to 3.86)53.916.40 (7.25 to 37.11)3.11
 Non-smoker6921.518.9157.036.15 (18.36 to 71.18)
Number of cigarettes smoked before<0.001*<0.001*0.772*
 <107734.61.19 (0.69 to 2.01)60.31.84 (1.04 to 3.24)3.81.93 (0.40 to 9.25)
 10–1926934.2161.42.28 (1.53 to 3.40)3.31.50 (0.45 to 4.99)
 ≥2016957.32.39 (1.60 to 3.57)39.212.31
  • OR (adjusted for sex, age and education level).

  • 2 test.

  • †Fisher’s exact test.