Abstract
Background
The rate of suicide of adolescents is recently significantly increasing in South Korea. Suicide is the first leading cause of death of adolescents aged 15 to 19 years in South Korea and the mortality rate due to suicide of adolescents is 8.9 per 100,000. The aims of this study is to investigate factors that affect suicidal ideation through inventory and scale.
Methods
A questionnaire was conducted to 820 high school students in a city, and 776 subjects who finished questionare were included in this study. Suicidal ideation, school bullying, excessive sexual thought and family conflict were checked by adolescent mental health and problem behavior screening questionnaire-II (AMPQ-II). Internet addiction degrees and depression was evaluated by internet addiction scale (IAS) and Beck's depression inventory (BDI), respectively.
Results
AMPQ-II, IAS, BDI, school bullying, suicidal ideation, and family conflict were closely related to each other. Binary logistic analysis showed that victims of school bullying (odds ratio [OR], 2.3; 95% confidence Interval [CI], 1.439–3.816), AMPQ-II high risk (OR 4.9; CI 2.546–9.433) and depression of all grade (OR 1.8 [mild], 2.2 [moderate], 6.4 [severe]) were related to suicidal ideation.
References
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Table 1.
Characteristics | Total (n=776) | Characteristics | Total (n=776) | ||
---|---|---|---|---|---|
N | % | N | % | ||
Gender | Communication of family | ||||
Boys | 315 | 40.6 | Well | 369 | 47.6 |
Girls | 461 | 59.4 | Ordinary | 368 | 47.4 |
School, Location | Rare | 39 | 5.0 | ||
A, Jung-gu | 225 | 29.0 | Rank in class | ||
B, Suseong-gu | 278 | 35.8 | Best (≦5th) | 79 | 10.2 |
C, Dalseo-gu | 273 | 35.2 | Good (6–10th) | 120 | 15.5 |
Grade | Mediocre (11–20th) | 359 | 46.3 | ||
1st | 293 | 37.8 | Lack (≧21th) | 218 | 28.1 |
2nd | 483 | 62.2 | Parent marital status | ||
BMI | Living together | 665 | 85.7 | ||
Underweight | 184 | 23.7 | Separation or Divorced | 83 | 10.7 |
Normal | 434 | 55.9 | Death (one or both) | 28 | 3.6 |
Overweight | 73 | 9.4 | |||
Obese | 85 | 11.0 | Allowance, per week | ||
Religion | <10,000 Won | 263 | 33.9 | ||
None | 446 | 57.5 | 10,000–19,999 Won | 374 | 48.2 |
Buddhist | 134 | 17.3 | 20,000–29,999 Won | 78 | 10.1 |
Catholic | 56 | 7.2 | ≧30,000 Won | 61 | 7.9 |
Protestant | 136 | 17.5 | Current stress factora | ||
Other | 4 | 0.5 | Record and university | 622 | 80.2 |
Siblings | Friendship problem | 118 | 15.2 | ||
1 | 74 | 9.5 | Family conflict | 72 | 9.3 |
2 | 566 | 72.9 | Worry about future | 442 | 57.0 |
3 | 126 | 16.2 | Health problem | 61 | 7.9 |
≧4 | 10 | 1.3 | Opposite sex problem | 57 | 7.3 |
Order of birth | Look or diet | 18 | 2.3 | ||
1st | 397 | 51.2 | Economic problem | 6 | 0.8 |
2nd | 336 | 43.3 | Others | 8 | 1.0 |
3rd | 41 | 5.3 | No stress | 6 | 0.8 |
≧4th | 2 | 0.3 | Alcohol use | ||
Residence place | No | 674 | 86.9 | ||
Dalseo-gu | 239 | 30.8 | Yes | 102 | 13.1 |
Suseong-gu, Dong-gu | 366 | 47.2 | Smoking | ||
Jung-gu, Nam-gu | 109 | 14.0 | Non-smoker | 714 | 92.0 |
Seo-gu, Buk-gu | 24 | 3.1 | Current smoker | 62 | 8.0 |
Gyeongsangbuk-do | 38 | 4.9 |
Table 2.
Total | Low risk (<cut-offa) (n=703) | High risk (≧cut-off) (n=73) | P | ||||
---|---|---|---|---|---|---|---|
N | % | N | % | N | % | ||
BDI scoreb | 9.19±7.77 | 8.12±6.48 | 19.44±11.09 | <0.001c | |||
BDI group | <0.001d | ||||||
No depression | 474 | 61.1 | 459 | 65.3 | 15 | 20.5 | |
Mild depression | 159 | 20.5 | 153 | 21.8 | 6 | 8.2 | |
Moderate depression | 103 | 13.3 | 76 | 10.8 | 27 | 37.0 | |
Severe depression | 40 | 5.2 | 15 | 2.1 | 25 | 34.2 | |
IAS scoreb | 37.21±14.03 | 36.02±12.88 | 48.64±18.84 | <0.001c | |||
IAS group | <0.001d | ||||||
Non addiction | 478 | 61.6 | 451 | 64.2 | 27 | 37.0 | |
Possible addiction | 281 | 36.2 | 244 | 34.7 | 37 | 50.7 | |
Addicted | 17 | 2.2 | 8 | 1.1 | 9 | 12.3 | |
AMPQ-II scoreb | 15.99±10.78 | 13.48±7.19 | 40.12±9.77 | <0.001c | |||
Suicidal ideation | <0.001d | ||||||
No | 665 | 85.7 | 635 | 90.3 | 30 | 41.1 | |
Yes | 111 | 14.3 | 68 | 9.7 | 43 | 58.9 | |
Excessive sexual thoughtb | 0.49±1.01 | 0.38±0.85 | 1.51±1.67 | <0.001c | |||
No | 581 | 74.9 | 550 | 78.2 | 31 | 42.5 | <0.001d |
Yes | 195 | 25.1 | 153 | 21.8 | 42 | 57.5 | |
Family conflict | <0.001d | ||||||
No | 484 | 62.4 | 457 | 65.0 | 27 | 37.0 | |
Yes | 292 | 37.6 | 246 | 35.0 | 46 | 63.0 | |
AMPQ-II factor 1b | 4.53±3.74 | 3.83±2.94 | 11.25±4.01 | <0.001c | |||
AMPQ-II factor 2b | 4.55±3.76 | 3.80±2.83 | 11.75±3.94 | <0.001c | |||
AMPQ-II factor 3b | 3.56±2.30 | 3.19±1.90 | 7.14±2.70 | <0.001c | |||
AMPQ-II factor 4b | 0.52±1.08 | 0.38±0.82 | 1.93±1.96 | <0.001c | |||
Non-victim | 561 | 72.3 | 541 | 77.0 | 20 | 27.4 | <0.001c |
Victim | 215 | 27.7 | 162 | 23.0 | 53 | 72.6 | |
AMPQ-II Factor 5b | 0.41±1.08 | 0.28±0.72 | 1.74±2.36 | <0.001c |
Table 3.
Total | Non-addiction 20–39 (n=478) | Possible addiction 40–69 (n=281) | Addicted ≧70 (n=17) | P | |||||
---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | ||
AMPQ-II scorea | 15.99±10.78 | 13.58±9.17 | 18.91±11.18 | 35.35±14.56 | <0.001b | ||||
AMPQ-II group | <0.001c | ||||||||
Low risk | 703 | 90.6 | 451 | 94.4 | 244 | 86.8 | 8 | 47.1 | |
High risk | 73 | 9.4 | 27 | 5.6 | 37 | 13.2 | 9 | 52.9 | |
Suicidal ideation | 0.002c | ||||||||
No | 665 | 85.7 | 419 | 87.7 | 236 | 84.0 | 10 | 58.8 | |
Yes | 111 | 14.3 | 59 | 12.3 | 45 | 16.0 | 7 | 41.2 | |
Excessive sexual thoughta | 0.49±1.01 | 0.33±0.81 | 0.67±1.10 | 2.00±2.29 | <0.001b | ||||
No | 581 | 74.9 | 388 | 81.2 | 185 | 65.8 | 8 | 47.1 | |
Yes | 195 | 25.1 | 90 | 18.8 | 96 | 34.2 | 9 | 52.9 | |
Family conflict | 0.002c | ||||||||
No | 484 | 62.4 | 320 | 66.9 | 157 | 55.9 | 7 | 41.2 | |
Yes | 292 | 37.6 | 158 | 33.1 | 124 | 44.1 | 10 | 58.8 | |
AMPQ-II factor 1a | 4.53±3.74 | 3.71±3.12 | 5.55±3.96 | 10.76±5.84 | <0.001b | ||||
AMPQ-II factor 2a | 4.55±3.76 | 4.15±3.54 | 4.94±3.79 | 9.18±5.40 | <0.001b | ||||
AMPQ-II factor 3a | 3.56±2.30 | 2.91±1.96 | 4.45±2.24 | 7.35±3.30 | <0.001b | ||||
AMPQ-II factor 4a | 0.52±1.08 | 0.41±0.91 | 0.70±1.29 | 0.88±1.17 | 0.001b | ||||
Non-victim | 561 | 72.3 | 370 | 77.4 | 183 | 65.1 | 8 | 47.1 | <0.001c |
Victim | 215 | 27.7 | 108 | 22.6 | 98 | 34.9 | 9 | 52.9 | |
AMPQ-II factor 5a | 0.41±1.08 | 0.37±1.00 | 0.47±1.20 | 0.65±1.12 | 0.324b | ||||
BDI scorea | 9.19±7.77 | 8.13±7.11 | 10.36±8.10 | 19.47±9.79 | <0.001b | ||||
BDI group | <0.001c | ||||||||
No depression | 474 | 61.1 | 327 | 68.4 | 144 | 51.2 | 3 | 17.6 | |
Mild depression | 159 | 20.5 | 82 | 17.2 | 74 | 26.3 | 3 | 17.6 | |
Moderate depression | 103 | 13.3 | 51 | 10.7 | 46 | 16.4 | 6 | 35.3 | |
Severe depression | 40 | 5.2 | 18 | 3.8 | 17 | 6.0 | 5 | 29.4 |
Table 4.
Total | No depression | Mild depression | Moderate depression S | Severe depression | P | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
(n=474) | (n=159) | depression (n=103) | (n=40) | ||||||||
N | % | N | % | N | % | N | % | N | % | ||
AMPQ-II scorea | 15.99±10.78 | 12.01±8.15 | 17.39±7.14 | 24.65±11.37 | 35.20±13.52 | <0.001b | |||||
AMPQ-II group | <0.001c | ||||||||||
Low risk | 703 | 90.6 | 459 | 96.8 | 153 | 96.2 | 76 | 73.8 | 15 | 37.5 | |
High risk | 73 | 9.4 | 15 | 3.2 | 6 | 3.8 | 27 | 26.2 | 25 | 62.5 | |
Suicidal ideation | <0.001c | ||||||||||
No | 665 | 85.7 | 438 | 92.4 | 136 | 85.5 | 76 | 73.8 | 15 | 37.5 | |
Yes | 111 | 14.3 | 36 | 7.6 | 23 | 14.5 | 27 | 26.2 | 25 | 62.5 | |
Excessive sexual thoughta | 0.49±1.01 | 0.43±0.99 | 0.44±0.82 | 0.63±1.23 | 1.00±1.24 | 0.002b | |||||
No | 581 | 74.9 | 374 | 78.9 | 116 | 73.0 | 70 | 68.0 | 21 | 52.5 | 0.001c |
Yes | 195 | 25.1 | 100 | 21.1 | 43 | 27.0 | 33 | 32.0 | 19 | 47.5 | |
Family conflict | <0.001c | ||||||||||
No | 484 | 62.4 | 330 | 69.6 | 94 | 59.1 | 47 | 45.6 | 13 | 32.5 | |
Yes | 292 | 37.6 | 144 | 30.4 | 65 | 40.9 | 56 | 54.4 | 27 | 67.5 | |
AMPQ-II factor 1a | 4.53±3.74 | 3.19±2.84 | 5.30±3.13 | 7.20±3.78 | 10.43±4.95 | <0.001b | |||||
AMPQ-II factor 2a | 4.55±3.76 | 3.24±2.73 | 5.00±3.12 | 7.49±3.80 | 10.70±5.41 | <0.001b | |||||
AMPQ-II factor 3a | 3.56±2.30 | 3.04±2.04 | 3.61±1.72 | 4.88±2.54 | 6.18±3.25 | <0.001b | |||||
AMPQ-II factor 4a | 0.52±1.08 | 0.35±0.80 | 0.62±1.19 | 0.87±1.43 | 1.35±1.70 | <0.001b | |||||
Non-victim | 561 | 72.3 | 374 | 78.9 | 109 | 68.6 | 61 | 59.2 | 17 | 42.5 | <0.001c |
Victim | 215 | 27.7 | 100 | 21.1 | 50 | 31.4 | 42 | 40.8 | 23 | 57.5 | |
AMPQ-II factor 5a | 0.41±1.08 | 0.35±1.03 | 0.33±0.81 | 0.59±1.26 | 1.00±1.73 | 0.001b | |||||
IAS scorea | 37.21±14.03 | 34.75±12.28 | 39.86±13.91 | 41.37±16.27 | 45.10±19.86 | <0.001b | |||||
IAS group | <0.001d | ||||||||||
Non addiction | 478 | 61.6 | 327 | 69.0 | 82 | 51.6 | 51 | 49.5 | 18 | 45.0 | |
Possible addiction | 281 | 36.2 | 144 | 30.4 | 74 | 46.5 | 46 | 44.7 | 17 | 42.5 | |
Addicted | 17 | 2.2 | 3 | 0.6 | 3 | 1.9 | 6 | 5.8 | 5 | 12.5 |
Table 5.
Total (n=776) | Non-victim (school bullying) (n=561) | Victim (school bullying) (n=215) | P | ||||
---|---|---|---|---|---|---|---|
N | % | N | % | N | % | ||
BDI scorea | 9.19±7.77 | 8.19±6.94 | 11.80±9.12 | <0.001b | |||
BDI group | <0.001c | ||||||
No depression Mild depression | 474 159 | 61.1 20.5 | 374 109 | 66.7 19.4 | 100 50 | 46.5 23.3 | |
Moderate depression | 103 | 13.3 | 61 | 10.9 | 42 | 19.5 | |
Severe depression | 40 | 5.2 | 17 | 3.0 | 23 | 10.7 | |
IAS scorea | 37.21±14.03 | 35.59±13.13 | 41.44±15.39 | <0.001b | |||
IAS group | <0.001c | ||||||
Non addiction | 478 | 61.6 | 370 | 66.0 | 108 | 50.2 | |
Possible addiction | 281 | 36.2 | 183 | 32.6 | 98 | 45.6 | |
Addicted | 17 | 2.2 | 8 | 1.4 | 9 | 4.2 | |
AMPQ-II scorea | 15.99±10.78 | 12.96±8.30 | 23.89±12.41 | <0.001b | |||
AMPQ-II group | <0.001c | ||||||
Low risk | 703 | 90.6 | 541 | 96.4 | 162 | 75.3 | |
High risk | 73 | 9.4 | 20 | 3.6 | 53 | 24.7 | |
Sucidal ideation | <0.001c | ||||||
No | 665 | 85.7 | 512 | 91.3 | 153 | 71.2 | |
Yes | 111 | 14.3 | 49 | 8.7 | 62 | 28.8 | |
Excessive sexual thoughta | 0.49±1.01 | 0.35±0.87 | 0.84±1.25 | <0.001b | |||
No | 581 | 74.9 | 454 | 80.9 | 127 | 59.1 | <0.001c |
Yes | 195 | 25.1 | 107 | 19.1 | 88 | 40.9 | |
Family conflict | 0.001c | ||||||
No | 484 | 62.4 | 370 | 66.0 | 114 | 53.0 | |
Yes | 292 | 37.6 | 191 | 34.0 | 101 | 47.0 | |
AMPQ-II factor 1a | 4.53±3.74 | 3.73±3.13 | 6.60±4.37 | <0.001b | |||
AMPQ-II factor 2a | 4.55±3.76 | 3.83±3.22 | 6.43±4.37 | <0.001b | |||
AMPQ-II factor 3a | 3.56±2.30 | 3.10±2.02 | 4.78±2.52 | <0.001b | |||
AMPQ-II factor 5a | 0.41±1.08 | 0.32±0.95 | 0.66±1.32 | 0.001b |
Table 6.
Total (n=776) | No (n=665) | Yes (n=111) | P | ||||
---|---|---|---|---|---|---|---|
N | % | N | % | N | % | ||
BDI scorea | 9.19±7.77 | 8.03±6.40 | 16.14±11.00 | <0.001b | |||
BDI group | <0.001c | ||||||
No depression | 474 | 61.1 | 438 | 65.9 | 36 | 32.4 | |
Mild depression | 159 | 20.5 | 136 | 20.5 | 23 | 20.7 | |
Moderate depression | 103 | 13.3 | 76 | 11.4 | 27 | 24.3 | |
Severe depression | 40 | 5.2 | 15 | 2.3 | 25 | 22.5 | |
IAS scorea | 37.21±14.03 | 36.45±13.28 | 41.73±17.27 | 0.003b | |||
IAS group | 0.002c | ||||||
Non addiction | 478 | 61.6 | 419 | 63.0 | 59 | 53.2 | |
Possible addiction | 281 | 36.2 | 236 | 35.5 | 45 | 40.5 | |
Addicted | 17 | 2.2 | 10 | 1.5 | 7 | 6.3 | |
AMPQ-II scorea | 15.99±10.78 | 13.91±8.55 | 28.41±14.00 | <0.001b | |||
AMPQ-II group | <0.001c | ||||||
Low risk | 703 | 90.6 | 635 | 95.5 | 68 | 61.3 | |
High risk | 73 | 9.4 | 30 | 4.5 | 43 | 38.7 | |
Family conflict | <0.001c | ||||||
No | 484 | 62.4 | 434 | 65.3 | 50 | 45.0 | |
Yes | 292 | 37.6 | 231 | 34.7 | 61 | 55.0 | |
Excessive sexual thoughta | 0.49±1.01 | 0.41±0.92 | 0.95±1.36 | <0.001b | |||
No | 581 | 74.9 | 517 | 77.7 | 64 | 57.7 | <0.001c |
Yes | 195 | 25.1 | 148 | 22.3 | 47 | 42.3 | |
AMPQ-II factor 1a | 4.53±3.74 | 3.95±3.29 | 7.97±4.41 | <0.001b | |||
AMPQ-II factor 2a | 4.55±3.76 | 3.80±2.98 | 8.99±4.75 | <0.001b | |||
AMPQ-II factor 3a | 3.56±2.30 | 3.34±2.12 | 4.91±2.83 | <0.001b | |||
AMPQ-II factor 4a | 0.52±1.08 | 0.40±0.91 | 1.29±1.60 | <0.001b | |||
Non-victim | 561 72.3 | 512 77.0 | 49 44.1 | <0.001c | |||
Victim | 215 27.7 | 153 23.0 | 62 55.9 | ||||
AMPQ-II factor 5a | 0.41±1.08 | 0.31±0.88 | 1.05±1.73 | <0.001b |