Purpose: This study aimed to investigate problem behavior and its related factors in school-aged children. Methods: A descriptive correlational study was conducted with 221 mothers of children at 1st to 6th grades. Data were collected from March to April, 2015 using self-report structured questionnaires. Questionnaires included characteristics of subjects, Korean Child Behavior Checklist for measuring problem behavior and Children's Sleep Habits Questionnaire for assessing sleeping habits. Collected data were analyzed by independent t-test, $x^2$ test, and multiple logistic regression. Results: In logistic regression analysis, having any maternal job (aOR=2.8, 95% CI=1.1~6.9) and higher daytime sleepiness (aOR=2.9, 95% CI=1.2~7.4) were statistically significant contributors of internal problems. Higher bedtime resistance (aOR=2.2, 95% CI=1.0~4.9) and higher daytime sleepiness (aOR=2.8, 95% CI=1.2~6.3) were statistically significant contributors of external problems. Higher bedtime resistance (aOR=4.3, 95% CI=1.5~12.4) was statistically significant contributors of total problem behavior. Conclusion: School-aged children with sleeping problem are at risk for problem behavior. More attention is need to consider sleeping habits for supporting behavioral improvement in school-aged children.

Purpose: This study was conducted to investigate the effects of simulation-based education using high-fidelity simulator and standardized patient in nursing care for children with fever on nursing students. Methods: A total of 166 senior nursing students who completed pediatric nursing practicum courses participated in this study. The single group study design with pretest and posttest was used. The simulation education was provided for 200mins including orientation, simulation preparation, simulation practicum, and debriefing. Pre and post surveys were performed using questionnaires on clinical performance competency, communication skills, critical thinking disposition and self-confidence. Results: The mean scores of clinical performance competency (t=-2.56, p<.05), communication skills (t=-6.39, p<.001), critical thinking disposition (t=-3.43, p<.001), and self-confidence (t=-3.72, p<.001) in posttest were significantly higher than those in pretest. Also, clinical performance competency in nursing care for children with fever has significant relationships with communication skills, critical thinking disposition and self-confidence. Conclusion: The results indicate that simulation-based education using high-fidelity simulator and standardized patient is an effective strategy for improving clinical performance competency, communication skills, critical thinking disposition and self-confidence in nursing students. Further study is needed to verify the effects.

Purpose: This study aimed to verify the effects of prenatal breast self-massage education on first-time mothers' breastfeeding self-efficacy, breastfeeding adaptation, and breastfeeding practice. Method: The experimental group (n=26) received prenatal breast self-massage education focused on self mamma care (SMC) at 34-36 weeks gestation and 2 weeks later face-to-face. The control group (n=25) was recruited immediately following birth and received usual care. Breastfeeding self-efficacy was measured 4 hours after childbirth and 3 days later, and breastfeeding practice, breastfeeding adaptation, and breastfeeding-related characteristics were measured 2 weeks and 4 weeks after childbirth through online survey. The data were analyzed by $x^2$ test and t-test using SPSS/WIN 24.0. Results: There was no significant difference in breastfeeding self-efficacy of the experimental group at 4 hours after childbirth (t=0.83, p=.410) whereas it was statistically significantly higher at 3 days postpartum (t=2.86, p=.006). There were no significant differences in breastfeeding adaptation between the two groups at both 2 weeks (t=1.76, p=.084) and 4 weeks postpartum (t=0.87, p=.388). For breastfeeding practice a statistically significant difference was found at 4 weeks for the experimental group ($x^2=4.77$, p=.036). Conclusion: This antenatal SMC intervention was found to be a feasible intervention for use in clinical practice.

Purpose: This study was aimed to identify pregnancy and childbirth experience of Vietnamese marriage migrant women who have pregnancy and childbirth experience during adaptation to Korea. Methods: A qualitative study was conducted, using focus group interview. Data were collected from October 2011 to March 2012 from 10 Vietnamese women of 2 focus groups who have experienced pregnancy or childbirth in Korea. Data were analyzed using content analysis in order to identify significant themes. Results: This study was analyzed into five major themes: 'difficulty of adaptation to other cultures', 'difficulty and joy of pregnancy', 'effort to live as a Korean', 'not-so-difficult childbirth', and 'unbearable postpartum conditions.' Conclusion: It is meaningful of this study to reveal this: for Vietnamese marriage migrant women, the support for adaptation to Korean culture and postpartum care is a priority rather than the necessity of development of the program about pregnancy and childbirth.

Purpose: This study was conducted to investigate the factors predicting HPV (Human Papilloma Virus) vaccination practices among female college students. Methods: A convenience sample of 207 female students attending four universities in one metropolitan city participated. Self-report questionnaires consisted of general characteristics, characteristics related prevention of cervical cancer, knowledge of HPV, knowledge of cervical cancer vaccination, and health beliefs related to HPV vaccination. Data were analyzed by $x^2$ test, independent t-test, and bivariate logistic regression. Results: Factors predicting HPV vaccination practices were information about HPV (OR=3.37), experience of HPV test (OR=12.71), and health beliefs related to HPV vaccination (OR=1.13). Conclusion: In order to increase the practice rate of HPV vaccination, it is necessary to provide simple key information that is easy to understand, rather than expert knowledge about HPV. Therefore, it is necessary to provide a way for college students to get information about virus easily. It is necessary to intervene integrally with the facilitation factor and obstacle factor of vaccination practice.