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Purpose: This study aimed to investigate the association among various adolescent problem behaviors in South Korea, focusing on gender differences.
Methods: This secondary analysis was conducted using cross-sectional data from the 19th Korea Youth Risk Behavior Survey, conducted in 2023 which included 52,880 middle and high school students in South Korea. They completed an anonymous self-administered survey regarding problem behaviors (drinking alcohol, smoking, drugs use, and sexual experiences). Data were analyzed using complex-samples chi-square and multiple logistic regression models.
Results: Among the 52,880 adolescents, the prevalence rates of alcohol use, smoking, drug use, and sexual experiences were 32.6%, 8.6%, 1.7%, and 6.5%, respectively. Gender differences were observed in alcohol use complex-samples multiple logistic regression models. However, no significant gender difference was found in drug use (p=.250). Four problem behaviors were significantly associated with one other when analyzed as independent variables (odds ratio [OR], 1.33-10.85). The strongest associations were found between alcohol use and smoking (OR, 10.49-10.85), and between smoking and sexual experiences (OR, 4.91-4.96).
Conclusion: This study found significant gender differences in adolescent problem behaviors, with male adolescents exhibiting higher rates of alcohol use, smoking, and sexual experience. Strong associations were observed between alcohol use and smoking, as well as between smoking and sexual experience. These findings suggest the need for integrated intervention strategies that target multiple co-occurring problem behaviors.
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http://dx.doi.org/10.4094/chnr.2025.012 | DOI Listing |
J Adv Res
September 2025
Institute of Big Data and Information Technology, Wenzhou University, Wenzhou 325000, China. Electronic address:
Introduction: Numerical optimization plays a key role in improving the efficiency of solar photovoltaic (PV) systems and solving complex engineering problems. Traditional optimization methods often struggle with finding optimal solutions within a reasonable timeframe due to high-dimensional and non-linear problem landscapes.
Objectives: This study aims to introduce a novel swarm intelligence algorithm, the Beaver Behavior Optimizer (BBO), inspired by the cooperative behaviors of beavers during dam construction.
BMJ Open
September 2025
Department for Life Quality Studies, Alma Mater Studiorum University of Bologna, Rimini, Italy.
Objective: This study aims to analyse the barriers and facilitators towards an implementation of active breaks (ABs) intervention inside the workplace.
Methods: This study used a mixed-methods approach, incorporating virtual focus groups and an online questionnaire, conducted among the workers of Alma Mater Studiorum - University of Bologna (Italy). A total of 30 participants (N=30), including administrative and academic staff, PhD candidates, specialised trainees and research fellows, were involved in the study.
Annu Rev Pharmacol Toxicol
September 2025
Department of Chemistry, School of Science, The University of Tokyo, Tokyo, Japan; email:
In conventional drug discovery, particularly for small molecules, investigating a small compound that matches the structure of the target molecule and alters its activity has been a crucial process. On the other hand, artificially regulating the activity of a target molecule that is inherently present in cells or organisms and involved in a physiological function can cause various side effects. One possible approach to overcoming this side effect problem is to explore molecules that affect the behavior or motility of molecules related to diseases.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Mathematics, College of Science, Jouf University, Sakaka, Saudi Arabia.
This study explores the acoustic behavior of flexible cylindrical shells incorporating membrane discs at structural interfaces, focusing on their influence on wave propagation characteristics. The dynamics of the embedded membrane discs are modeled at the junctions between different shell segments, and the resulting boundary value problem is addressed using a combination of the Mode-Matching (MM) and Galerkin methods. The governing equations comprise the Helmholtz equation in the fluid domain and the Donnell-Mushtari shell equations in the elastic guiding regions.
View Article and Find Full Text PDFPLoS One
September 2025
Vaccine and Infectious Disease Organization, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
The fourth leading cause of death in the US, Chronic Obstructive Pulmonary Disease (COPD) is punctuated by frequent viral and bacterial infections causing severe acute exacerbations (AECOPD) and increased mortality. In previous work we have shown that altered immune cell signaling may confer increased and persistent susceptibility to infection. Here we continue this investigation by conducting broad-spectrum proteomic profiling of circulating white blood cells to assemble an empirical protein-protein interaction network associated with frequency of infectious exacerbation.
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