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Sexually Transmitted Infections and First Sexual Intercourse Age in Adolescents: The Nationwide Retrospective Cross-Sectional Study

 Seo Yoon Lee  ;  Hyo Jung Lee  ;  Tae Kyoung Kim  ;  Sang Gyu Lee  ;  Eun-Cheol Park 
 JOURNAL OF SEXUAL MEDICINE, Vol.12(12) : 2313-2323, 2015 
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Issue Date
Adolescent ; Adolescent Behavior/psychology* ; Adolescent Health* ; Age Factors ; Coitus/psychology* ; Cross-Sectional Studies ; Female ; Health Education ; Health Knowledge, Attitudes, Practice ; Humans ; Male ; Odds Ratio ; Peer Influence ; Republic of Korea/epidemiology ; Retrospective Studies ; Risk-Taking ; Sexual Behavior/psychology* ; Sexually Transmitted Diseases/prevention & control ; Sexually Transmitted Diseases/psychology* ; Young Adult
Adolescent ; Sexual Health ; Sexually Transmitted Infection ; Timing
INTRODUCTION: Sexually transmitted infections (STIs) are major causes of medical and psychological problems globally, while adolescents in South Korea have recently shown rapid changes in sexual behaviors. AIMS: We aimed to examine the association between the age of first sexual intercourse and the experience of STIs among adolescents. Additionally, in which specific time period would more likely to get infected from sexual intercourse. METHODS: We used data from the 2007-2013 Korea Youth Risk Behavior Web-based Survey. Only adolescents with sexual intercourse experience (N = 22,381) were included, and multiple logistic regression analysis was performed. MAIN OUTCOME MEASURES: One dichotomized measure and one continuous measure were assessed: (i) STIs experience (defined as having had STIs); and (ii) association between STIs experience and absolute age gap (defined as temporal differences between secondary sexual character emergence age and first sexual intercourse age). RESULTS: Approximately 7.4% of boys and 7.5% of girls reported had STI. For both boys and girls, the chance of experiencing STIs increased as the age of first sexual intercourse decreased (boys: before elementary school [age 7 or under]: odds ratio [OR] = 10.81, first grade [age 7 or 8]: OR = 4.44, second grade [age 8 or 9]: OR = 8.90, fourth grade [age 10 or 11]: OR = 7.20, ninth grade [age 15 or 16]: OR = 2.31; girls: before elementary school: OR = 18.09, first grade: OR = 7.26, second grade: OR = 7.12, fourth grade: OR = 8.93, ninth grade: OR = 2.74). The association between the absolute age gap and STI experience was examined additionally (boys: OR = 0.93, girls: OR = 0.87). CONCLUSIONS: This study shows that earlier initiation of sexual intercourse increases the odds of experiencing STIs. Also as the age gap gets shorter, the odds of experiencing STIs increase. Our study suggests that it is important to consider the time period of first sexual intercourse and to reinforce a monitoring system along with the development of other preventive strategies.
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1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
Lee, Sang Gyu(이상규) ORCID logo https://orcid.org/0000-0003-4847-2421
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