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Table 3 Sexual history and contraceptive use among sexually-active adolescents in Bangkok, 2020 (n = 872)

From: Risky sexual behavior and associated factors among sexually-experienced adolescents in Bangkok, Thailand: findings from a school web-based survey

Variables Categories Total (n = 872) Sex category P-Value
Male (n = 367) Female (n = 505)
n % n % n %
First sex was voluntary Yes 804 92.2 350 95.4 545 89.9 0.003*
No 68 7.8 17 4.6 51 10.1  
Ever been forced to have sex No 773 88.6 319 86.9 454 89.9 0.171
Yes 99 11.4 48 13.1 51 10.1  
Used condoms at first sex Yes 578 66.3 231 62.9 347 68.7 0.075
No 294 33.7 136 37.1 158 31.3  
Used condom at last sex Yes 606 69.5 255 69.5 351 69.5 0.994
No 266 30.5 112 30.5 154 30.5  
Number of sexual partners in lifetime One 502 57.6 223 60.8 279 55.2 0.104
More than one 370 42.4 144 39.2 226 44.8  
Sold sex before No 846 97.0 351 95.6 495 98.0 0.041*
Yes 26 3.0 16 4.4 10 2.0  
Engaged in RSB No 266 30.5 115 31.3 151 29.9 0.650
Yes 606 69.5 252 68.7 354 70.1  
Used birth control No 272 31.2 136 37.1 136 26.9 0.001**
Yes 600 68.8 231 62.9 369 73.1  
Used emergency contraception at last sex No 803 92.1 347 94.6 456 90.3 0.022*
Yes 69 7.9 20 5.4 49 9.7  
  1. RBS; risky sexual behavior
  2. *p-value < 0.05, **p-value < 0.001