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

The Effects of Urban Forest-walking Program on Health Promotion Behavior, Physical Health, Depression, and Quality of Life: A Randomized Controlled Trial of Office-workers: Kyung-Sook Bang, In-sook Lee, Sung-Jae Kim, Min Kyung Song, Se-Eun Park; J Korean Acad Nurs 2016;46(1):140-148. Published online February 29, 2016; DOI: https://doi.org/10.4040/jkan.2016.46.1.140

Abstract PDF

Purpose

This study was performed to determine the physical and psychological effects of an urban forest-walking program for office workers. For many workers, sedentary lifestyles can lead to low levels of physical activity causing various health problems despite an increased interest in health promotion.

Methods

Fifty four office workers participated in this study. They were assigned to two groups (experimental group and control group) in random order and the experimental group performed 5 weeks of walking exercise based on Information-Motivation-Behavioral skills Model. The data were collected from October to November 2014. SPSS 21.0 was used for the statistical analysis.

Results

The results showed that the urban forest walking program had positive effects on the physical activity level (U=65.00, p <.001), health promotion behavior (t= - 2.20, p =.033), and quality of life (t= - 2.42, p =.020). However, there were no statistical differences in depression, waist size, body mass index, blood pressure, or bone density between the groups.

Conclusion

The current findings of the study suggest the forest-walking program may have positive effects on improving physical activity, health promotion behavior, and quality of life. The program can be used as an effective and efficient strategy for physical and psychological health promotion for office workers.

Citations

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Healing Effects of the Forest Experience on Alcoholics: Jingyung Cha, Sungjae Kim; J Korean Acad Nurs 2009;39(3):338-348. Published online June 29, 2009; DOI: https://doi.org/10.4040/jkan.2009.39.3.338

Abstract PDF

Purpose

The purpose of this study was to explore and describe healing effects of the forest on alcoholics through a forest experience program.

Methods

The qualitative data was gathered from one focus group discussion with 6 alcoholics and individual interviews with 8 alcoholics. They had all participated in a "healing forest" program. All interviews were recorded and transcribed according to thematic content analysis processes.

Results

The four main themes on the attributes of forest were "a lively living being", "placidity and tranquility", "acceptive atmosphere", and "beautifulness as it is" which revealed the participants' perceived nature of the forest which was attributed to the healing effects. Eight other themes on participants' positive changes included "revived senses", "aspired to live", "relieved and relaxed from being tense", "gaining insight on self", "having an acceptive attitude", "becoming compliant with his/her life", "learning that life is being together" and "recognizing the value of one's existence".

Conclusion

The findings of the study illustrated the participants' self-healing processes through interactions with the nature of the forest. Nursing interventions utilizing healing atmospheres such as "healing forest" programs can be considered helpful in providing a venue to alcoholics to reflect on their lives affirmatively.

Citations

Citations to this article as recorded by

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