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Table 1 Demographic characteristics by gender and the type of sexual intercourse experience: KYRBS

From: Type of sexual intercourse experience and suicidal ideation, plans, and attempts among youths: a cross-sectional study in South Korea

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)
  1. Notes: All the variables presented P < 0.001, using a chi-square test, except P > 0.05
  2. Unweighted sample size and weighted percentage
  3. aPerceived very obesity
  4. bResponses for subjective perception of health status
  5. cDiagnosed with sexually transmitted diseases (STDs) including HIV Infection from sexual intercourse
  6. dVictim of violence (being physically assaulted, threatened, or bullied)