Background
Methods
Study design and population
Measures
Type of sexual intercourse
Suicide risk outcomes (SROs)
Control variables
Statistical analysis
Merged 2012 ~ 2013 n = 146,621 | Type of sexual intercourse, no. (%)‡ | ||||||||
---|---|---|---|---|---|---|---|---|---|
Females, n = 71,745 | Males, n = 74,876 | ||||||||
Characteristics | No Contact | Opposite | Same | Both | No Contact | Opposite | Same | Both | |
Socioeconomic factors | |||||||||
Gender | |||||||||
Female | 69,706 (97.2) | 1,649 (2.2) | 203 (0.3) | 187 (0.3) | |||||
Male | 69,936 (93.3) | 4,060 (5.5) | 441 (0.6) | 439 (0.6) | |||||
School type | |||||||||
Single sex | 24,326 (98.0) | 423 (1.8) | 41 (0.1) | 26 (0.1) | 22,975 (93.7) | 1,213† (5.2) | 136† (0.5) | 148† (0.6) | |
Coeducation | 45,380 (96.7) | 1,226 (2.5) | 162 (0.4) | 161 (0.4) | 46,961 (93.2) | 2,847† (5.6) | 305† (0.6) | 291† (0.6) | |
Grade | Age | ||||||||
7 | 11,513 (97.5) | 200 (1.8) | 31 (0.3) | 42 (0.4) | 12,306 (96.3) | 345 (2.8) | 54 (0.4) | 70 (0.5) | |
8 | 11,646 (98.4) | 136 (1.1) | 35 (0.3) | 25 (0.2) | 12,224 (96.5) | 293 (2.3) | 72 (0.6) | 66 (0.5) | |
9 | ≤ 14 years | 11,771 (98.0) | 161 (1.3) | 32 (0.3) | 31 (0.3) | 12,278 (96.0) | 341 (2.7) | 75 (0.6) | 80 (0.7) |
10 | 11,484 (97.6) | 238 (1.9) | 24 (0.2) | 29 (0.3) | 11,946 (94.1) | 610 (4.7) | 72 (0.6) | 76 (0.6) | |
11 | 11,897 (96.4) | 400 (3.0) | 38 (0.3) | 29 (0.3) | 10,659 (90.5) | 998 (8.1) | 80 (0.7) | 79 (0.7) | |
12 | ≤ 17 years | 11,395 (95.2) | 514 (4.2) | 43 (0.3) | 31 (0.3) | 10,523 (87.0) | 1,473 (11.8) | 88 (0.6) | 68 (0.6) |
Achivement | |||||||||
High | 6,577 (96.7) | 112 (1.6) | 38 (0.7) | 54 (1.0) | 8,491 (93.2) | 404 (4.6) | 77 (0.9) | 109 (1.3) | |
Mid-high | 16,997 (98.0) | 309 (1.7) | 34 (0.2) | 22 (0.2) | 16,507 (95.3) | 645 (3.9) | 61 (0.4) | 80 (0.5) | |
Middle | 19,716 (97.9) | 373 (1.8) | 38 (0.2) | 29 (0.1) | 18,702 (94.3) | 965 (4.8) | 102 (0.5) | 77 (0.4) | |
Mid-low | 18,087 (97.0) | 489 (2.6) | 46 (0.2) | 31 (0.2) | 17,082 (92.8) | 1,109 (6.1) | 113 (0.6) | 91 (0.5) | |
Low | 8,329 (94.8) | 366 (4.0) | 47 (0.6) | 51 (0.6) | 9,154 (89.1) | 937 (9.2) | 88 (0.9) | 82 (0.8) | |
Economic | |||||||||
High | 3,282 (94.0) | 94 (2.8) | 34 (1.3) | 58 (1.9) | 5,856 (89.4) | 439 (7.7) | 76 (1.1) | 112 (1.8) | |
Mid-high | 15,843 (97.7) | 304 (1.9) | 44 (0.3) | 23 (0.2) | 17,801 (94.6) | 831 (4.5) | 103 (0.5) | 75 (0.4) | |
Middle | 35,054 (98.0) | 654 (1.7) | 57 (0.1) | 51 (0.2) | 31,754 (94.6) | 1,526 (4.5) | 135 (0.4) | 147 (0.5) | |
Mid-low | 12,457 (96.6) | 390 (2.9) | 34 (0.3) | 23 (0.2) | 11,215 (92.6) | 784 (6.5) | 69 (0.5) | 47 (0.4) | |
Low | 3,070 (91.7) | 207 (6.1) | 34 (1.1) | 32 (1.1) | 3,310 (85.3) | 426 (11.5) | 58 (1.7) | 58 (1.6) | |
Family structure | |||||||||
Both parents | 56,894 (97.8) | 1,090 (1.8) | 99 (0.2) | 107 (0.2) | 57,563 (94.2) | 2,919 (4.8) | 278 (0.5) | 305 (0.5) | |
Mother only | 7,350 (96.1) | 264 (3.3) | 31 (0.4) | 15 (0.2) | 6,204 (91.1) | 504 (7.5) | 57 (0.8) | 35 (0.6) | |
Father only | 3,434 (94.9) | 163 (4.3) | 15 (0.4) | 9 (0.4) | 3,967 (89.9) | 356 (8.5) | 35 (0.9) | 30 (0.8) | |
Neither parent | 2,028 (86.6) | 132 (6.4) | 58 (3.3) | 56 (3.7) | 2,202 (81.9) | 281 (11.6) | 71 (3.3) | 69 (3.2) | |
Health risk behaviors | |||||||||
Smoking | |||||||||
No | 66,577 (98.1) | 1,105 (1.6) | 104 (0.2) | 100 (0.2) | 60,994 (96.3) | 1,772 (2.9) | 262 (0.4) | 251 (0.4) | |
Yes | 3,129 (80.7) | 544 (13.7) | 99 (2.8) | 87 (2.8) | 8,942 (77.0) | 2,288 (19.8) | 179 (1.6) | 188 (1.6) | |
Drinking | |||||||||
No | 67,533 (97.7) | 1,330 (1.9) | 158 (0.2) | 123 (0.2) | 66,739 (94.8) | 2,903 (4.2) | 359 (0.5) | 353 (0.5) | |
Yes | 2,173 (82.8) | 319 (12.2) | 45 (2.0) | 64 (3.1) | 3,197 (70.2) | 1,157 (25.8) | 82 (2.0) | 86 (1.9) | |
Obesitya | |||||||||
No | 65,060 (97.2) | 1,524 (2.2) | 188 (0.3) | 166 (0.3) | 66,387 (93.3) | 3,904 (5.5) | 407 (0.6) | 417 (0.6) | |
Yes | 4,646 (96.7) | 125 (2.5) | 15 (0.3) | 21 (0.5) | 3,549 (94.4) | 156 (4.1) | 34 (0.8) | 22 (0.7) | |
Health statusb | |||||||||
Good | 64,047 (97.4) | 1,391 (2.0) | 178 (0.3) | 162 (0.3) | 66,317 (93.5) | 3,752 (5.3) | 398 (0.6) | 405 (0.6) | |
Poor | 5,659 (94.9) | 258 (4.2) | 25 (0.4) | 25 (0.6) | 3,619 (90.4) | 308 (7.6) | 43 (1.1) | 34 (1.0) | |
STD diagnosisc | |||||||||
No | 69,706 (97.5) | 1,570 (2.1) | 134 (0.2) | 118 (0.2) | 69,936 (93.8) | 3,863 (5.2) | 338 (0.4) | 349 (0.5) | |
Yes | 79 (33.5) | 69 (32.5) | 69 (34.0) | 197 (48.2) | 103 (27.5) | 90 (24.3) | |||
Violenced | |||||||||
No | 68,529 (97.6) | 1,498 (2.1) | 111 (0.2) | 107 (0.2) | 67,156 (94.1) | 3,591 (5.1) | 307 (0.4) | 302 (0.4) | |
Yes | 1,177 (76.6) | 151 (10.0) | 92 (6.8) | 80 (6.6) | 2,780 (78.5) | 469 (13.4) | 134 (4.1) | 137 (4.0) |
Merged 2012 ~ 2013 n = 146,621 | Suicide risk outcomes, Responses ‘Yes’ = No. (%)‡ | ||||||
---|---|---|---|---|---|---|---|
Females, n = 71,745 | Males, n = 74,876 | ||||||
Characteristics | Suicide ideation | Suicide plan | Suicide attempt | Suicide ideation | Suicide plan | Suicide attempt | |
Yes = No. (%)‡ | 15,603 (21.7) | 5,240 (7.2) | 3,912 (5.5) | 10,102 (13.6) | 3,637 (4.8) | 2,127 (2.8) | |
Sexual intercourse | |||||||
No contact | 14,726 (21.0) | 4,787 (6.8) | 3,494 (5.0) | 8,838 (12.7) | 3,003 (4.3) | 1,678 (2.4) | |
Opposite sex | 694 (42.2) | 308 (18.7) | 297 (18.0) | 973 (23.8) | 446 (10.9) | 306 (7.4) | |
Same sex | 92 (45.9) | 74 (34.3) | 57 (28.4) | 147 (33.7) | 93 (22.0) | 73 (17.0) | |
Both sexes | 91 (49.4) | 71 (41.2) | 64 (34.1) | 144 (34.2) | 95 (21.6) | 70 (16.8) | |
Socioeconomic factors | |||||||
School type | |||||||
Single sex | 5,052 (20.3) | 1,550 (6.2) | 1,084 (4.4) | 3,219† (13.2) | 1,063 (4.3) | 587 (2.4) | |
Coeducation | 10,551 (22.4) | 3,690 (7.8) | 2,828 (6.1) | 6,883† (13.8) | 2,574 (5.1) | 1,540 (3.0) | |
Grade | Age | ||||||
7 | 2,615 (22.4) | 1,049 (9.0) | 823 (7.3) | 1,553 (12.6) | 611 (5.0) | 328 (2.6) | |
8 | 2,852 (24.2) | 1,128 (9.5) | 849 (7.4) | 1,710 (13.7) | 704 (5.5) | 427 (3.4) | |
9 | ≤ 12 years | 2,698 (22.3) | 975 (8.1) | 714 (6.0) | 1,804 (14.4) | 679 (5.5) | 408 (3.2) |
10 | 2,502 (21.1) | 719 (6.1) | 576 (4.8) | 1,742 (13.3) | 600 (4.5) | 386 (2.9) | |
11 | 2,685 (21.4) | 802 (6.4) | 553 (4.3) | 1,689 (14.1) | 545 (4.5) | 295 (2.5) | |
12 | ≤ 17 years | 2,251 (18.7) | 567 (4.6) | 397 (3.3) | 1,604 (13.3) | 498 (4.1) | 283 (2.3) |
Achivement | |||||||
High | 1,235 (17.9) | 391 (5.8) | 258 (4.0) | 1,109 (12.9) | 441 (5.0) | 265 (3.0) | |
Mid-high | 3,239 (18.7) | 1,058 (6.2) | 693 (4.1) | 2,038 (11.8) | 712 (4.0) | 404 (2.3) | |
Middle | 3,760 (18.6) | 1,155 (5.6) | 831 (4.1) | 2,439 (12.3) | 821 (4.1) | 438 (2.2) | |
Mid-low | 4,586 (24.4) | 1,544 (8.2) | 1,208 (6.4) | 2,655 (14.8) | 924 (5.1) | 500 (2.6) | |
Low | 2,783 (32.0) | 1,092 (12.4) | 922 (10.5) | 1,861 (18.2) | 739 (7.3) | 520 (5.1) | |
Economic | |||||||
High | 734 (21.3) | 310 (9.3) | 226 (7.0) | 945 (14.5) | 467 (7.3) | 308 (4.7) | |
Mid-high | 3,069 (19.0) | 1,033 (6.3) | 759 (4.7) | 2,223 (12.0) | 771 (4.2) | 425 (2.2) | |
Middle | 6,937 (19.2) | 2,227 (6.1) | 1,648 (4.6) | 3,894 (11.7) | 1,329 (3.9) | 737 (2.2) | |
Mid-low | 3,533 (27.5) | 1,115 (8.6) | 841 (6.5) | 2,053 (17.0) | 619 (5.0) | 368 (2.9) | |
Low | 1,330 (40.3) | 555 (17.3) | 438 (13.6) | 987 (25.9) | 451 (11.8) | 289 (7.5) | |
Family structure | |||||||
Both parents | 11,771 (20.1) | 3,751 (6.4) | 2,764 (4.8) | 7,788 (12.9) | 2,733 (4.5) | 1,535 (2.5) | |
Mother only | 2,020 (26.7) | 738 (9.9) | 543 (7.3) | 1,031 (15.1) | 362 (5.2) | 225 (3.2) | |
Father only | 1,051 (29.4) | 401 (11.0) | 325 (9.1) | 739 (16.8) | 278 (6.2) | 167 (3.6) | |
Neither parent | 761 (35.6) | 350 (17.0) | 280 (13.9) | 544 (22.0) | 264 (11.1) | 200 (8.4) | |
Health risk behaviors | |||||||
Smoking | |||||||
No | 13,750 (20.2) | 4,366 (6.4) | 3,114 (4.6) | 7,509 (12.0) | 2,579 (4.1) | 1,370 (2.2) | |
Yes | 1,853 (47.9) | 874 (23.1) | 798 (20.9) | 2,593 (22.4) | 1,058 (9.1) | 757 (6.4) | |
Drinking | |||||||
No | 14,329 (20.7) | 4,598 (6.6) | 3,347 (4.9) | 8,798 (12.6) | 3,053 (4.3) | 1,701 (2.4) | |
Yes | 1,274 (49.3) | 642 (25.2) | 565 (21.8) | 1,304 (29.0) | 584 (13.2) | 426 (9.7) | |
Obesitya | |||||||
No | 14,162 (21.1) | 4,684 (6.9) | 3,520 (5.3) | 9,408 (13.3) | 3,357 (4.7) | 1,958 (2.7) | |
Yes | 1,441 (30.1) | 556 (11.5) | 392 (8.3) | 694 (18.8) | 280 (7.5) | 169 (4.4) | |
Health statusb | |||||||
Good | 13,162 (19.9) | 4,246 (6.4) | 3,178 (4.9) | 8,902 (12.6) | 3,137 (4.4) | 1,816 (2.5) | |
Poor | 2,441 (40.7) | 994 (16.9) | 734 (12.5) | 1,200 (30.9) | 500 (13.1) | 311 (7.9) | |
STD diagnosisc | |||||||
No | 15,476 (21.5) | 5,147 (7.1) | 3,824 (5.4) | 9,935 (13.4) | 3,511 (4.7) | 2,032 (2.7) | |
Yes | 127 (61.2) | 93 (44.4) | 88 (42.8) | 167 (44.6) | 126 (34.5) | 95 (24.7) | |
Violenced | |||||||
No | 14,765 (20.9) | 4,748 (6.7) | 3,481 (5.0) | 8,877 (12.5) | 2,897 (4.0) | 1,593 (2.2) | |
Yes | 838 (55.3) | 492 (32.8) | 431 (28.7) | 1,225 (35.1) | 740 (21.6) | 534 (15.6) |
Merged 2012 ~ 2013 n = 146,621‡ | Suicide ideation, OR (95% CIs) | Suicide plan, OR (95% CIs) | Suicide attempt, OR (95% CIs) | |||
---|---|---|---|---|---|---|
Unadjusted | Adjusted | Unadjusted | Adjusted | Unadjusted | Adjusted | |
Female | ||||||
Sexual intercourse | ||||||
Opposite sex | .00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Same sex | 1.16† (0.88–1.53) | 0.59* (0.42–0.83) | 2.27 (1.66–3.09) | 1.19† (0.82–1.73) | 1.81 (1.29–2.52) | 0.76† (0.52–1.12) |
Both sexes | 1.33† (0.98–1.81) | 0.63* (0.43–0.92) | 3.06 (2.18–4.28) | 1.50† (0.99–2.26) | 2.36 (1.67–3.33) | 0.88† (0.53–1.45) |
No contact | 0.36 (0.33–0.40) | 0.62 (0.55–0.70) | 0.31 (0.36–0.41) | 0.66 (0.56–0.77) | 0.24 (0.30–0.36) | 0.54 (0.46–0.64) |
Family structure | ||||||
Both parents | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Mother only | 1.44 (1.37–1.51) | 1.28 (1.22–1.36) | 1.60 (1.48–1.73) | 1.38 (1.27–1.50) | 1.57* (1.43–1.71) | 1.32 (1.20–1.45) |
Father only | 1.65 (1.53–1.78) | 1.39 (1.29–1.51) | 1.82 (1.64–2.02) | 1.44 (1.29–1.61) | 2.00 (1.78–2.25) | 1.54 (1.35–1.75) |
Neither parent | 2.19 (2.00–2.40) | 1.47 (1.33–1.64) | 3.01 (2.67–3.39) | 1.55 (1.34–1.79) | 3.20 (2.80–3.67) | 1.47 (1.24–1.73) |
Health risk behavior | ||||||
Smoking | 3.62 (3.39–3.85) | 2.34 (2.18–2.51) | 4.41 (4.07–4.79) | 2.34 (2.11–2.59) | 5.45 (5.00–5.95) | 2.77 (2.50–3.09) |
Drinking | 3.73 (3.46–4.02) | 2.20 (2.01–2.40) | 4.78 (4.37–5.24) | 2.39 (2.13–2.67) | 5.42 (4.92–5.96) | 2.41 (2.14–2.71) |
Obesitya | 1.61 (1.51–1.71) | 1.43 (1.34–1.53) | 1.74 (1.59–1.91) | 1.48 (1.34–1.64) | 1.61 (1.45–1.78) | 1.35 (1.21–1.52) |
Health statusb | 2.74 (2.60–2.89) | 2.42 (2.29–2.55) | 2.97 (2.77–3.19) | 2.45 (2.27–2.65) | 2.78 (2.57–3.01) | 2.23 (2.04–2.43) |
STD diagnosisc | 5.74 (4.42–7.44) | 0.94† (0.66–1.34) | 10.43 (7.88–13.79) | 0.81† (0.56–1.17) | 13.22 (9.83–17.79) | 1.06† (0.71–1.58) |
Violenced | 4.66 (4.22–5.14) | 3.17 (2.83–3.56) | 6.82 (6.11–7.61) | 3.87 (3.39–4.43) | 7.65 (6.82–8.59) | 4.10 (3.55–4.72) |
Male | ||||||
Sexual intercourse | ||||||
Opposite sex | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Same sex | 1.62 (1.31–2.01) | 1.29* (1.01–1.64) | 2.30 (1.80–2.93) | 1.45* (1.10–1.92) | 2.58 (1.95–3.40) | 1.69* (1.22–2.35) |
Both sexes | 1.66 (1.35–2.03) | 1.43 (1.16–1.78) | 2.23 (1.74–2.88) | 1.57* (1.19–2.07) | 2.54 (1.92–3.37) | 1.84 (1.32–2.56) |
No contact | 0.36 (0.33–0.40) | 0.76 (0.70–0.83) | 0.36 (0.32–0.40) | 0.67 (0.60–0.76) | 0.30 (0.26–0.34) | 0.67 (0.58–0.78) |
Family structure | ||||||
Both parents | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
Mother only | 1.19 (1.11–1.28) | 1.08 (1.00–1.16) | 1.16 (1.04–1.29) | 1.02† (0.90–1.14) | 1.30 (1.12–1.50) | 1.10† (0.94–1.28) |
Father only | 1.36 (1.25–1.48) | 1.16 (1.06–1.26) | 1.39 (1.23–1.58) | 1.11† (0.97–1.27) | 1.45 (1.23–1.71) | 1.08† (0.91–1.30) |
Neither parent | 1.90 (1.72–2.09) | 1.27 (1.15–1.42) | 2.66 (2.32–3.03) | 1.37 (1.19–1.58) | 3.55 (3.04–4.14) | 1.61 (1.32–1.92) |
Health risk behavior | ||||||
Smoking | 2.11 (2.01–2.23) | 1.56 (1.47–1.66) | 2.35 (2.19–2.53) | 1.49 (1.36–1.63) | 3.11 (2.84–3.41) | 1.81 (1.62–2.02) |
Drinking | 2.83 (2.64–3.02) | 1.82 (1.68–1.96) | 3.38 (3.06–3.73) | 1.94 (1.72–2.18) | 4.41 (3.97–4.89) | 2.19 (1.92–2.50) |
Obesitya | 1.51 (1.39–1.64) | 1.24 (1.13–1.35) | 1.64 (1.45–1.86) | 1.26 (1.10–1.44) | 1.64 (1.40–1.93) | 1.22* (1.03–1.46) |
Health statusb | 3.08 (2.88–3.30) | 2.74 (2.56–2.95) | 3.28 (2.96–3.63) | 2.73 (2.44–3.05) | 3.30 (2.91–3.74) | 2.56 (2.23–2.93) |
STD diagnosisc | 5.19 (4.32–6.25) | 1.35* (1.10–1.66) | 10.71 (8.69–13.20) | 1.80 (1.40–2.32) | 11.86 (9.47–14.84) | 1.34* (1.02–1.76) |
Violenced | 3.78 (3.53–4.04) | 3.02 (2.81–3.24) | 6.55 (6.01–7.13) | 4.77 (4.35–5.23) | 8.22 (7.40–9.14) | 5.56 (4.97–6.22) |