This study attempted to identify factors affecting depression in relation to loneliness among adolescents. The study participants were 2668 adolescents aged 12 to 18 years who felt stressed and lonely. The variables in this study were classified into sociodemographic and psychological characteristics based on the 16th Korea Youth Risk Behavior Web-Based Survey items. Results revealed that sex, smoking, suicidal ideation, suicide planning, and anxiety were significantly related to depression (p < 0.05) in the group that reported less loneliness. Economic level, alcohol consumption, suicidal ideation, suicide planning, subjective body type, and anxiety were significantly related factors (p < 0.05) in the group that reported feeling very lonely. This study is significant in providing basic data for developing evidence-based strategies to ameliorate depression in adolescents.

Purpose: The purpose of this study was to identify factors related to self-management of older patients with diabetes. Methods: The subjects of the study were 255 older patients with diabetes registered at the public health center in C-do O-gun. Data were analyzed with IBM SPSS ver. 24.0. Results: The self-management had significant positive correlations with diabetes knowledge (r=.29, <i>p</i><.001) and self-efficacy (r=.62, <i>p</i><.001), and had a significant negative correlation with depression (r=-.47, <i>p</i><.001). A hierarchical multiple regression was conducted to analyze the factors effecting self-management. In the Model II, subjects with religion (β=.10, <i>p</i>=.033), subjects of higher than middle school graduate (β=.12, <i>p</i>=.036), subjects with one comorbidity (β=.16, <i>p</i>=.034), diabetes knowledge (β=.12, <i>p</i>=.017), self-efficacy (β=.49, <i>p</i><.001), and depression (β=-.27, <i>p</i><.001) had significant effects on self-management, and the explanatory power increased to 48.7% (F=22.88, <i>p</i><.001). Conclusion: To improve the self-management of older patients with diabetes, not only sufficient diabetes knowledge should be provided through systematic education, but also development of the self-management program that improves self-efficacy and includes psychological support for the prevention and mitigation of depression is required.