Table 2 Comparison of FTND score, number of side effects, and the main reasons for electronic cigarette use among those who use only e-cigarettes, dual products, and those who smoked cigarettes in the past

eFTND score [mean(SD)]^×

3 (1.6)

5.3 (2.5)

4.1 (2.1)

34.9

< 0.001

Number of side-effects reported [mean(SD)] ^¥

4.1 (1.9)

4.9 (2.5)

3.6 (1.9)

8.6

0.014

Main reasons for e-cigarette use π

85.2

< 0.001

Safer alternative

72 (66.7)

13 (12)

23 (21.3)

To reduce or quit smoking

11 (12.6)

47 (54)

29 (33.3)

Circumvent smoke laws

12 (32.4)

17 (45.9)

8 (21.6)

Product appeal

47 (67.1)

71(10)

16 (22.9)