Journal of Korean Academy of Nursing

Research Paper

Factors Influencing Sexual Experiences in Adolescents Using a Random Forest Model: Secondary Data Analysis of the 2019~2021 Korea Youth Risk Behavior Web-based Survey Data: Yang, Yoonseok , Kwon, Ju Won , Yang, Youngran; J Korean Acad Nurs 2024;54(2):193-210. Published online May 31, 2024; DOI: https://doi.org/10.4040/jkan.23134

Abstract PDF: Purpose
The objective of this study was to develop a predictive model for the sexual experiences of adolescents using the random forest method and to identify the “variable importance.” Methods: The study utilized data from the 2019 to 2021 Korea Youth Risk Behavior Web-based Survey, which included 86,595 man and 80,504 woman participants. The number of independent variables stood at 44. SPSS was used to conduct Rao-Scott χ² tests and complex sample t-tests. Modeling was performed using the random forest algorithm in Python. Performance evaluation of each model included assessments of precision, recall, F1-score, receiver operating characteristics curve, and area under the curve calculations derived from the confusion matrix.
Results
The prevalence of sexual experiences initially decreased during the COVID-19 pandemic, but later increased. “Variable importance” for predicting sexual experiences, ranked in the top six, included week and weekday sedentary time and internet usage time, followed by ease of cigarette purchase, age at first alcohol consumption, smoking initiation, breakfast consumption, and difficulty purchasing alcohol.
Conclusion
Education and support programs for promoting adolescent sexual health, based on the top-ranking important variables, should be integrated with health behavior intervention programs addressing internet usage, smoking, and alcohol consumption. We recommend active utilization of the random forest analysis method to develop high-performance predictive models for effective disease prevention, treatment, and nursing care.

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Original Articles

Sexual Behavior and Related Factors of Coitus of Teenage Girls in Korea: Soon Bok Chang, Soyaja Kim, In Young Han, Young Ju Park, Hyun Cheol Kang, Sun Kyoung Lee; Journal of Korean Academy of Nursing 2001;31(5):921-931. Published online March 29, 2017; DOI: https://doi.org/10.4040/jkan.2001.31.5.921

PURPOSE: The purpose of this study was to investigate the rate of pregnancy, abortion, delivery and contraceptive use and the relationship between the related factors and the early coitus among Korean teenagers.
METHOD
The subjects of this study were 12,733 teenagers age 13-19 years in 7 major cities and 9 provinces in Korea. Data was collected from 2 Oct., to 28 Oct., 2000 and analyzed by using SPSS 10.0 Program.
RESULTS
The results showed pregnancy rate 4.5%, delivery rate 0.5%, abortion rate 0.4%. Adolescent girls who experienced coitus relatively went to vocational school, coeduaction school, night school in the general characteristics (p=0.000). Adolescent girls who experienced coitus tend to go to video room (18.5%), go the singing room (60.7%), the bar (54.8%), petting with the partner during the dates. There were overlapping juvenile delinquencies such as drinking (89.2%), pornography (65.3%), bond inhalation (2.7%), leaving homes (43.7%), smoking (14.5%), cyber sex (70.8%), phone sex (12.9%). Adolescent girls who experienced coitus were more suffering from Wangtta (26.1%) than who had not. They showed significant positive attitudes toward coitus; such as feeling of excitement (6.6%), nature (37.9%), beauty (8.7%). On the other hand, they had more guilty (2.8%) than the inexperienced (p=0.000). The main factors relating to early coitus were 'to confirm love' (46.9%), 'afraid of rejection' (32.2%). They think the benefits of coitus were 'more intimacy with boyfriends' (20.6%), 'satisfaction of curiosity' (16.8%). The losses on coitus were 'worry about pregnancy' (73.7%) and 'unability to refuse sexual contacts' (28.7%)
CONCLUSION
It could be concluded that it is necessary to plan different sex education programs according to general characteristics and delinquency behaviors of teenage girls in Korea.

Citations

Citations to this article as recorded by

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Jung Hee Yeo, Hyunjeong Park, Eun-Young Kim
Journal of Community Health.2019; 44(3): 580. CrossRef
Effects of Drinking, Smoking and Drug Use Experience on Adolescents’ Sexual Intercourse: Using the Data of the Korea Youth Risk Behavior Web-based Survey from 2010 to 2014
Eunyoung Pyo, Jiyeon An, Jinok Jeong, Yunjeong Yi
Journal of the Korean Society of School Health.2016; 29(3): 299. CrossRef
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Journal of Korean Academy of Fundamentals of Nursing.2013; 20(1): 18. CrossRef
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Factors that Influence Sexual Intercourse among Middle School Students: Using Data from the 8^th (2012) Korea Youth Risk Behavior Web-based Survey: Seok Hyun Gwon, Chung Yul Lee; J Korean Acad Nurs 2015;45(1):76-83. Published online February 27, 2015; DOI: https://doi.org/10.4040/jkan.2015.45.1.76

Abstract PDF

Purpose

The purpose of this study was to investigate factors that influence sexual intercourse among middle school students in South Korea.

Methods

Using statistics from the 8th (2012) Korea Youth Risk Behavior Web-based Survey, hierarchical logistic regression analysis was conducted. The study sample comprised 37,297 middle school students aged primarily 12 to 15.

Results

The significant predictors of sexual intercourse were grade, ever smoking, ever drinking, habitual or purposeful drug use, economic status, weekly allowance, cohabitation with family, and type of school.

Conclusion

The results suggest that intensified sex education is needed not only in the 1st grade of middle school, but also in the upper grades of elementary school. Sexual health interventions for high-risk groups may be needed, given the factors predicting sexual intercourse.

Citations

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International Journal of Public Health.2023;[Epub] CrossRef
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