Purpose: The purpose of this study was to identify the current state of research on healthcare professionals who make medical errors, who are known as "second victims", and support systems for them. Methods: An extensive search was conducted in electronic databases, Google, and websites related to patient safety using search terms such as "second victims", "medical errors", "adverse events", and "sentinel events". Results: Research to date in Korea has rarely focused on healthcare professionals' experiences after making medical errors. Abroad, there are comprehensive and systematic reviews of the impact of medical errors on healthcare professionals, their coping responses, and support systems for these second victims. Additionally, several institutes related to patient safety provide official guidelines and accessible support systems to support second victims in the aftermath of medical errors, especially serious adverse events. Conclusion: The impact of medical errors on healthcare professionals is profound and complex. Although systematic support systems for second victims are imperative, this has been overlooked in Korea. Thus, more research about the experiences of healthcare professionals after medical errors needs to be conducted prior to developing support systems or programs. Additionally, further efforts are required to raise awareness of the necessity of supporting healthcare professionals in healthcare systems.

Purpose: This study aimed to investigate differences in drinking scores according to stress and depression. Methods: A secondary analysis of the 5th and 6th Korea National Health and Nutrition Examination Surveys was conducted. Complex sampling design data analysis was performed in order to identify differences in Alcohol Use Disorder Identification Test (AUDIT) scores according to stress and depression among 1,732 unmarried women. Results: The average AUDIT score was 6.14 in unmarried women. There were significant differences in AUDIT scores in terms of stress and depression. Conclusion: Practical programs that can prevent alcohol drinking for unmarried women are suggested. Programs for alcohol-related problems should include stress and depression management.

Purpose: This study aimed to identify patterns of diagnosis and to explore risk factors for type 2 diabetes beyond the postpartum period in women with a previous history of gestational diabetes, and to identify differences in such risk factors between early and late-onset (aged <45 and ${\geq}45$). Methods: Using epidemiological data from the Korean Genome and Epidemiology Study, a retrospective analysis of 175 women with various timings of type 2 diabetes diagnosis was performed. Results: The average age ($42.6{\pm}10.6$) at type 2 diabetes diagnosis was earlier than the general population, and obesity was prevalent with marked weight gains around 35 years old. Longer duration of breastfeeding was observed in women with late-onset of type 2 diabetes. Conclusion: For prevention of type 2 diabetes, early intervention is required, and modifiable factors such as weight control and breastfeeding should be taken into consideration for intervention strategies.

Purpose: This study aimed to explore the underlying structures of students' interaction networks to monitor network changes during the year, to verify the relationship with self-directed learning, and to identify the effect of problem-based learning on interaction and self-directed learning. Methods: A longitudinal study was designed which included 3 parts (A=25, B=27, C=26) with a total of 78 second-year nursing students from 2013 to 2014. Interaction indicators used group network centralization and density, and individual in-degree centrality. Results: Group network centralization showed mean reversion patterns, however, centralization and density showed a slight increase from 2013 to 2014 (Centralization of A part from 52.78 to 36.96, B part from 20.56 to 32.20, C part from 34.40 to 37.24; Density of A part from 0.122 to 0.123, B part from 0.111 to 0.121, C part from 0.109 to 0.121). The individual in-degree centrality is significantly correlated with self-directed learning and the correlation coefficient increased during the year (r=.274 in 2013, r=.356 in 2014, p<.001). Conclusion: Students share information more interactively during the year and the more they share the higher the scores of self-directed learning.

Purpose: This study aimed to uncover the evidence for developing effective communication intervention programs by analyzing and evaluating Communication Intervention Studies using Nonviolent Communication (NVC-CI). The specific purposes were to analyze general characteristics of NVC-CI studies, intervention contents, and the effectiveness of the studies. Methods: This was an integrative review that analyzed NVC-CI studies published from 2005 to 2015 identified through searches of five Korean electronic databases. The method proposed by Whittemore and Knafl was applied. This contains four stages: problem identification, literature search, data evaluation, and data analysis. Results: Twelve studies met the inclusion criteria. Most of the experimental designs were Quasi-experimental studies. These included 9 papers (75%), one qualitative study, one mixed methodology, and one case study (8.3% respectively). Most NVC-CI studies used group intervention. In order to effectively change communication patterns, interventions needed about 10~11 sessions 1~2 times a week. Conclusion: Future research with well-designed clinical trials using NVC-CI needs to be done in the area of mental health nursing to promote communication skills.

Purpose: The purpose of this study was to investigate the research methods, contents, and effects of providing information to alleviate patients' anxiety during outpatient surgery. Methods: The PICOTS-SD (Participants, Interventions, Comparisons, Outcomes, Time, Setting, Study design) was used and 11 randomized controlled trials studies that met the inclusion and exclusion criteria were selected. For assessing the quality of the studies, the Cochrane Risk of Bias tool was used. Results: In the 11 selected studies, intervention methods included verbal, written paper, video, and websites, and the outcome variable was anxiety. Regarding the effectiveness of providing information on anxiety, the result of the present study was ambivalent. Conclusion: This study showed the current trends in providing information as an intervention. However, randomized controlled trials are further needed in Korea, to verify the effects of such an intervention on patients' anxiety.