Comparing the Characteristics of Cigarette Smoking and e-Cigarette and IQOS Use among Adolescents in Taiwan
Table 2
Demographics of e-cigarette users and non-users among Taiwanese adolescents in 2018.
Characteristic
All (N = 1484052)
e-Cigarette non-users (n = 1443329)
e-Cigarette users (n = 40723)
Na
(%)b
95%
CI
(%)b
95%
CI
(%)b
95%
CI
Gender
‡
Boy
769396
51.94
51.86
52.02
51.32
51.24
51.40
74.40
74.33
74.47
Girl
711977
48.06
47.98
48.14
48.68
48.60
48.76
25.60
25.53
25.67
Grade
‡
7
212325
14.31
14.25
14.36
14.5
14.44
14.56
7.35
7.31
7.39
8
226778
15.28
15.22
15.34
15.37
15.31
15.43
12.01
11.96
12.06
9
239127
16.11
16.05
16.17
16.21
16.15
16.27
12.69
12.64
12.74
10
278851
18.79
18.73
18.85
18.8
18.74
18.86
18.28
18.22
18.34
11
273690
18.44
18.38
18.50
18.29
18.23
18.35
23.97
23.90
24.04
12
253280
17.07
17.01
17.13
16.82
16.76
16.88
25.69
25.62
25.76
Monthly allowance
‡
US$0
168552
11.4
11.35
11.45
11.54
11.49
11.59
6.73
6.69
6.77
US$0.03–49.71
737600
49.9
49.82
49.98
50.49
50.41
50.57
29.16
29.09
29.23
US$49.72–116.03
332042
22.46
22.40
22.53
22.46
22.39
22.53
22.73
22.66
22.80
US$ ≧ 116.04
239878
16.23
16.17
16.29
15.52
15.46
15.58
41.38
41.30
41.46
Parent educational level
‡
Junior high school and below
121468
8.88
8.83
8.93
8.72
8.67
8.77
15.00
14.94
15.06
Senior high school
536363
39.21
39.13
39.29
39.06
38.98
39.14
44.90
44.82
44.98
University or college
536449
39.22
39.13
39.30
39.44
39.36
39.52
30.73
30.65
30.81
Graduate school
173655
12.69
12.64
12.75
12.78
12.72
12.84
9.37
9.32
9.42
Smoking status of parents
‡
Both smoke
119551
8.23
8.18
8.27
7.92
7.88
7.96
19.79
19.73
19.85
Only the father smokes
475080
32.7
32.63
32.78
32.53
32.45
32.61
39.04
38.96
39.12
Only the mother smokes
29250
2.01
1.99
2.04
1.95
1.93
1.97
4.28
4.25
4.31
Neither smokes
828801
57.05
56.97
57.13
57.6
57.52
57.68
36.89
36.81
36.97
Smoking status of close friends
‡
Yes
624300
42.17
42.09
42.25
41.13
41.05
41.21
80.12
80.06
80.18
No
856066
57.83
57.75
57.91
58.87
58.79
58.95
19.88
19.82
19.94
Access to free cigarettes
‡
Yes
45011
3.07
3.04
3.10
2.8
2.77
2.83
13.92
13.86
13.98
No
1420031
96.93
96.90
96.96
97.2
97.17
97.23
86.08
86.02
86.14
Exposure to cigarette advertisements
‡
Yes
338125
22.87
22.80
22.93
22.53
22.46
22.60
35.46
35.38
35.54
No
1140642
77.13
77.07
77.20
77.47
77.40
77.54
64.54
64.46
64.62
Attended classes concerning the dangers of tobacco
‡
Yes
697677
56.01
55.92
56.10
56.23
56.14
56.32
45.35
45.26
45.44
No
547990
43.99
43.90
44.08
43.77
43.68
43.86
54.65
54.56
54.74
aThe total numbers under each variable were not equal due to missing value(s).bSummed percentages in each column. P: Rao–Scott chi-square test was used to test the difference between independent variables and current use of e-cigarettes. ‡ indicates p values <0.001.
