Table 1.Demographic and selected characteristics of the study participants: the 2008 Korea Youth Risk Behavior Web-based Survey
Characteristic |
n |
Weighted % |
Gender |
|
|
Male |
39 278 |
53.0 |
Female |
35 960 |
47.0 |
Grade |
|
|
Middle school 1st |
13 037 |
17.2 |
Middle school 2nd |
13 056 |
17.2 |
Middle school 3rd |
12 850 |
17.3 |
High school 1st |
12 720 |
17.3 |
High school 2nd |
12 375 |
16.4 |
High school 3rd |
11 200 |
14.6 |
Self-rated school record |
|
|
High |
8669 |
11.5 |
Upper middle |
17 224 |
23.0 |
Middle |
20 578 |
27.4 |
Lower middle |
19 341 |
25.8 |
Low |
9426 |
12.3 |
Perceived socioeconomic status |
|
|
High |
4640 |
6.5 |
Upper middle |
16 161 |
22.5 |
Middle |
35 770 |
47.2 |
Lower middle |
13 692 |
17.6 |
Low |
4975 |
6.2 |
Asthma status1
|
|
|
Current |
2629 |
3.5 |
Former |
3250 |
4.5 |
Non |
69 359 |
92.0 |
Current cigarette use2
|
|
|
Yes |
9645 |
12.8 |
No |
65 593 |
87.2 |
Current frequent cigarette use3
|
|
|
Yes |
5720 |
7.8 |
No |
69 518 |
92.2 |
Current heavy cigarette use4
|
|
|
Yes |
2041 |
2.8 |
No |
73 197 |
97.2 |
Cigarette use before 13 years of age5
|
|
|
Yes |
6689 |
8.5 |
No |
68 489 |
91.5 |
Unknown |
60 |
|
Considered attempting suicide6
|
|
|
Yes |
14 259 |
18.9 |
No |
60 979 |
81.1 |
Attempted suicide7
|
|
|
Yes |
3649 |
4.7 |
No |
71 589 |
95.3 |
Table 2.Weighted percentages and adjusted odds ratios1 of cigarette use and suicidal behaviors according to asthma status2: the 2008 Korea Youth Risk Behavior Web-based Survey
|
Asthma status
|
|
Current |
Former |
Non |
Cigarette use behaviors (95% CI) |
|
|
|
Current cigarette use3
|
|
|
|
Weighted % |
15.2 (13.4 - 17.0) |
16.2 (14.5 - 17.9) |
12.5 (11.8 - 13.2) |
Adjusted OR |
1.25 (1.06 - 1.48) |
1.30 (1.13 - 1.49) |
1.00 |
Current frequent cigarette use4
|
|
|
|
Weighted % |
8.6 (7.1 - 10.0) |
10.8 (9.4 - 12.3) |
7.6 (7.0 - 8.1) |
Adjusted OR |
1.15 (0.93 - 1.42) |
1.45 (1.20 - 1.74) |
1.00 |
Current heavy cigarette use5
|
|
|
|
Weighted % |
4.7 (3.7 - 5.7) |
5.5 (4.3 - 6.7) |
2.6 (2.3 - 2.8) |
Adjusted OR |
1.93 (1.51 - 2.46) |
2.14 (1.62 - 2.84) |
1.00 |
Cigarette use before 13 years of age6
|
|
|
|
Weighted % |
10.1 (8.7 - 11.5) |
11.6 (9.9 - 13.4) |
8.3 (8.0 - 8.6) |
Adjusted OR |
1.13 (0.95 - 1.33) |
1.35 (1.14 - 1.61) |
1.00 |
Suicidal behaviors (95% CI) |
|
|
|
Considered attempting suicide7
|
|
|
|
Weighted % |
22.7 (20.5 - 25.0) |
24.0 (22.1 - 25.8) |
18.6 (18.1 - 19.0) |
Adjusted OR |
1.36 (1.19 - 1.55) |
1.40 (1.27 - 1.54) |
1.00 |
Attempted suicide8
|
|
|
|
Weighted % |
6.8 (5.6 - 8.0) |
6.9 (5.8 - 8.1) |
4.5 (4.3 - 4.7) |
Adjusted OR |
1.55 (1.25 - 1.92) |
1.54 (1.29 - 1.84) |
1.00 |
Table 3.Weighted percentages and adjusted odds ratios1 of cigarette use behaviors according to asthma status2 and suicidal ideation3: the 2008 Korea Youth Risk Behavior Web-based Survey
|
Suicidal ideation (+)
|
Suicidal ideation (-)
|
|
Ever-asthmatics |
Never-asthmatics |
Ever-asthmatics |
Never-asthmatics |
Current cigarette use4 (95% CI) |
|
|
|
|
Weighted % |
25.2 (22.2 - 28.5) |
18.0 (16.9 - 19.1) |
12.9 (11.7 - 14.2) |
11.3 (10.6 - 11.9) |
Adjusted OR |
2.61 (2.15 - 3.16) |
1.56 (1.45 - 1.68) |
1.14 (1.00 - 1.30) |
1.00 |
|
pinteraction8 = 0.002 |
Current frequent cigarette use5 (95% CI) |
|
|
|
|
Weighted % |
16.1 (13.5 - 19.1) |
10.6 (9.7 - 11.5) |
7.9 (7.0 - 9.0) |
6.9 (6.4 - 7.5) |
Adjusted OR |
2.55 (1.98 - 3.29) |
1.43 (1.30 - 1.57) |
1.14 (0.97 - 1.34) |
1.00 |
|
pinteraction8 = 0.003 |
Current heavy cigarette use6 (95% CI) |
|
|
|
|
Weighted % |
10.4 (8.1 - 13.2) |
4.3 (3.8 - 4.9) |
3.6 (3.0 - 4.3) |
2.2 (1.9 - 2.4) |
Adjusted OR |
5.31 (3.81 - 7.40) |
1.83 (1.60 - 2.10) |
1.67 (1.32 - 2.11) |
1.00 |
|
pinteraction8 = 0.005 |
Cigarette use before 13 years of age7 (95% CI) |
|
|
|
|
Weighted % |
18.1 (15.0 - 21.6) |
12.7 (11.9 - 13.4) |
8.8 (7.9 - 9.8) |
7.3 (7.0 - 7.6) |
Adjusted OR |
2.49 (1.99 - 3.12) |
1.68 (1.55 - 1.83) |
1.15 (1.02 - 1.31) |
1.00 |
|
pinteraction8 = 0.035 |