The Relationship between Attitudes toward Suicide and Family History of Suicide in Nagano Prefecture, Japan
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Design and Participants
2.2. Questionnaire Survey
- #1:
- “When a person chooses to die by suicide, the suicide is inevitable”.
- #2:
- “A suicide cannot be stopped by any person, because suicide is unpreventable”.
- #3:
- “Something good will happen if a person chooses to live rather than die by suicide”.
- #4:
- “The decision whether to live or to die should be entrusted to the other individual’s personal judgment”.
- #5:
- “The idea of suicide pact should be abandoned when there are one or more children to consider”.
- #6:
- “Individuals who have died by suicide must have experienced an extremely difficult time”.
2.3. Ethical Considerations
2.4. Statistical Analysis
3. Results
4. Discussion
5. Limitations
6. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
Abbreviations
K6 | Kessler 6 |
Agree | agree and agree a little |
Disagree | disagree and disagree a little |
NAD | neither agree nor disagree |
FAM | members of the participant’s immediate family (i.e., parent, child, spouse, or sibling) and other relatives (i.e., grandparent, cousin, uncle or aunt) |
FRND | friends, business associates, partners and others |
None | no suicide in the participant’s life |
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Variable | Category | Suicide in the Participant‘s Life | p for Trend | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Total (n = 5117) | FAM (n = 791) | FRND (n = 1569) | None (n = 2757) | |||||||
n | % | n | % | n | % | n | % | |||
Sex | Men | 2384 | 46.6 | 330 | 41.7 | 786 | 50.1 | 1268 | 46.0 | |
Women | 2733 | 53.4 | 461 | 58.3 | 783 | 49.9 | 1489 | 54.0 | ||
Age group (years) | 20–29 | 491 | 9.6 | 35 | 4.4 | 112 | 7.1 | 344 | 12.5 | |
30–39 | 837 | 16.4 | 124 | 15.7 | 288 | 18.4 | 425 | 15.4 | ||
40–49 | 930 | 18.2 | 152 | 19.2 | 323 | 20.6 | 455 | 16.5 | ||
50–59 | 1053 | 20.6 | 204 | 25.8 | 379 | 24.2 | 470 | 17.0 | ||
60–69 | 1115 | 21.8 | 178 | 22.5 | 332 | 21.2 | 605 | 21.9 | ||
over 70 | 691 | 13.5 | 98 | 12.4 | 135 | 8.6 | 458 | 16.6 | ||
Occupational status | Full-time employee | 1942 | 38.0 | 293 | 37.0 | 661 | 42.1 | 988 | 35.8 | |
Part-time employee | 814 | 15.9 | 129 | 16.3 | 242 | 15.4 | 443 | 16.1 | ||
Business owner/freelance professional | 740 | 14.5 | 114 | 14.4 | 266 | 17.0 | 360 | 13.1 | ||
Housewife/househusband | 656 | 12.8 | 136 | 17.2 | 157 | 10.0 | 363 | 13.2 | ||
Unemployed | 665 | 13.0 | 88 | 11.1 | 156 | 9.9 | 421 | 15.3 | ||
Student | 83 | 1.6 | 3 | 0.4 | 12 | 0.8 | 68 | 2.5 | ||
Other | 103 | 2.0 | 28 | 3.5 | 75 | 4.8 | 114 | 4.1 | ||
K6 score | ≥5 | 1791 | 35.0 | 297 | 37.5 | 619 | 39.5 | 875 | 31.7 | |
<5 | 3326 | 65.0 | 494 | 62.5 | 950 | 60.5 | 1882 | 68.3 | ||
| Agree | 500 | 9.8 | 98 | 12.4 | 153 | 9.8 | 249 | 9.0 | 0.02 |
Disagree | 4108 | 80.3 | 617 | 78.0 | 1289 | 82.2 | 2202 | 79.9 | ||
NAD | 509 | 9.9 | 76 | 9.6 | 127 | 8.1 | 306 | 11.1 | ||
| Agree | 839 | 16.4 | 165 | 20.9 | 276 | 17.6 | 398 | 14.4 | <0.01 |
Disagree | 3426 | 67.0 | 500 | 63.2 | 1047 | 66.7 | 1879 | 68.2 | ||
NAD | 852 | 16.7 | 126 | 15.9 | 246 | 15.7 | 480 | 17.4 | ||
| Agree | 4243 | 82.9 | 632 | 79.9 | 1272 | 81.1 | 2339 | 84.8 | <0.01 |
Disagree | 402 | 7.9 | 71 | 9.0 | 152 | 9.7 | 179 | 6.5 | ||
NAD | 472 | 9.2 | 88 | 11.1 | 145 | 9.2 | 239 | 8.7 | ||
| Agree | 1870 | 36.5 | 277 | 35.0 | 568 | 36.2 | 1025 | 37.2 | 0.21 |
Disagree | 2367 | 46.3 | 375 | 47.4 | 771 | 49.1 | 1221 | 44.3 | ||
NAD | 880 | 17.2 | 139 | 17.6 | 230 | 14.7 | 511 | 18.5 | ||
| Agree | 293 | 5.7 | 52 | 6.6 | 84 | 5.4 | 157 | 5.7 | 0.70 |
Disagree | 4457 | 87.1 | 685 | 86.6 | 1392 | 88.7 | 2380 | 86.3 | ||
NAD | 367 | 7.2 | 54 | 6.8 | 93 | 5.9 | 220 | 8.0 | ||
| Agree | 3782 | 73.9 | 604 | 76.4 | 1159 | 73.9 | 2019 | 73.2 | 0.08 |
Disagree | 643 | 12.6 | 95 | 12.0 | 214 | 13.6 | 334 | 12.1 | ||
NAD | 692 | 13.5 | 92 | 11.6 | 196 | 12.5 | 404 | 14.7 |
Variables | #1: When a Person Chooses to Die by Suicide, the Suicide Is Inevitable. | #2: A Suicide Cannot Be Stopped by Any Person, Because Suicide Is Unpreventable. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
n | Crude Odds Ratio | Adjusted Odds Ratio | n | Crude Odds Ratio | Adjusted Odds Ratio | |||||||||
Odds Ratio | 95% CI | p-Value | Odds Ratio | 95% CI | p-Value | Odds Ratio | 95% CI | p-Value | Odds Ratio | 95% CI | p-Value | |||
Sex | ||||||||||||||
Men | 2166 | 1.94 | 1.61–2.35 | <0.01 | 2.13 | 1.70–2.76 | <0.01 | 2040 | 1.43 | 1.23–1.66 | <0.01 | 1.44 | 1.21–1.72 | <0.01 |
Women | 2442 | 1.00 | reference | 1.00 | reference | 2225 | 1.00 | reference | 1.00 | reference | ||||
Age | ||||||||||||||
20–29 | 446 | 1.00 | reference | 1.00 | reference | 417 | 1.00 | reference | 1.00 | reference | ||||
30–39 | 771 | 1.36 | 0.88–2.11 | 0.17 | 1.31 | 0.81–2.10 | 0.27 | 725 | 1.29 | 0.92–1.80 | 0.14 | 1.18 | 0.83–1.69 | 0.36 |
40–49 | 844 | 1.42 | 0.92–2.19 | 0.11 | 1.32 | 0.83–2.10 | 0.25 | 777 | 1.33 | 0.96–1.86 | 0.09 | 1.20 | 0.84–1.71 | 0.32 |
50–59 | 966 | 1.65 | 1.09–2.50 | 0.02 | 1.56 | 0.99–2.46 | 0.07 | 895 | 1.33 | 0.96–1.84 | 0.08 | 1.21 | 0.86–1.72 | 0.28 |
60–69 | 1008 | 1.72 | 1.14–2.61 | 0.01 | 1.59 | 0.99–2.55 | 0.05 | 920 | 1.59 | 1.16–2.19 | <0.01 | 1.46 | 1.02–2.09 | 0.04 |
over 70 | 573 | 2.69 | 1.76–4.12 | <0.01 | 2.46 | 1.48–4.08 | <0.01 | 531 | 2.64 | 1.90–3.68 | <0.01 | 2.34 | 1.58–3.47 | <0.01 |
Occupational status | ||||||||||||||
Full-time employee | 1780 | 1.00 | reference | 1.00 | reference | 1667 | 1.00 | reference | 1.00 | reference | ||||
Part-time employee | 744 | 1.02 | 0.77–1.37 | 0.87 | 1.38 | 1.00–1.89 | 0.05 | 682 | 0.87 | 0.68–1.10 | 0.26 | 0.97 | 0.74–1.25 | 0.79 |
Business owner/freelance professional | 675 | 1.37 | 1.04–1.81 | 0.02 | 1.20 | 0.89–1.61 | 0.24 | 624 | 1.32 | 1.06–1.66 | 0.02 | 1.16 | 0.91–1.48 | 0.23 |
Housewife/househusband | 585 | 0.86 | 0.62–1.20 | 0.37 | 1.21 | 0.82–1.78 | 0.34 | 525 | 1.11 | 0.87–1.43 | 0.41 | 1.19 | 0.89–1.61 | 0.23 |
Unemployed | 557 | 1.51 | 1.13–2.01 | <0.01 | 1.13 | 0.79–1.62 | 0.49 | 520 | 1.69 | 1.34–2.13 | <0.01 | 1.22 | 0.93–1.64 | 0.14 |
Student | 77 | 0.65 | 0.26–1.64 | 0.37 | 0.95 | 0.35–2.58 | 0.92 | 69 | 0.70 | 0.34–1.43 | 0.38 | 0.90 | 0.41–1.90 | 0.75 |
Others | 190 | 2.43 | 1.65–3.57 | <0.01 | 2.09 | 1.36–3.22 | <0.01 | 178 | 1.93 | 1.36–2.73 | <0.01 | 1.51 | 1.03–2.21 | 0.03 |
K6 score ≥5 | 1587 | 1.89 | 1.57–2.28 | <0.01 | 2.13 | 1.75–2.59 | <0.01 | 1496 | 1.64 | 1.41–1.91 | <0.01 | 1.80 | 1.53–2.11 | <0.01 |
K6 score <5 | 3021 | 1.00 | reference | 1.00 | reference | 2769 | 1.00 | reference | 1.00 | reference | ||||
Suicide in the participant’s life | ||||||||||||||
FAM | 715 | 1.41 | 1.09–1.80 | <0.01 | 1.39 | 1.07–1.79 | 0.01 | 665 | 1.56 | 1.27–1.92 | <0.01 | 1.57 | 1.27–1.95 | <0.01 |
FRND | 1442 | 1.05 | 0.85–1.30 | 0.66 | 1.00 | 0.80–1.24 | 0.96 | 1323 | 1.25 | 1.05–1.48 | 0.01 | 1.25 | 1.05–1.49 | 0.01 |
None | 2451 | 1.00 | reference | 1.00 | reference | 2277 | 1.00 | reference | 1.00 | reference |
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Share and Cite
Tsukahara, T.; Arai, H.; Kamijo, T.; Kobayashi, Y.; Washizuka, S.; Arito, H.; Nomiyama, T. The Relationship between Attitudes toward Suicide and Family History of Suicide in Nagano Prefecture, Japan. Int. J. Environ. Res. Public Health 2016, 13, 623. https://doi.org/10.3390/ijerph13060623
Tsukahara T, Arai H, Kamijo T, Kobayashi Y, Washizuka S, Arito H, Nomiyama T. The Relationship between Attitudes toward Suicide and Family History of Suicide in Nagano Prefecture, Japan. International Journal of Environmental Research and Public Health. 2016; 13(6):623. https://doi.org/10.3390/ijerph13060623
Chicago/Turabian StyleTsukahara, Teruomi, Hiroaki Arai, Tomoko Kamijo, Yoshikiyo Kobayashi, Shinsuke Washizuka, Heihachiro Arito, and Tetsuo Nomiyama. 2016. "The Relationship between Attitudes toward Suicide and Family History of Suicide in Nagano Prefecture, Japan" International Journal of Environmental Research and Public Health 13, no. 6: 623. https://doi.org/10.3390/ijerph13060623