ObjectiveWe investigated the prevalence of insomnia and its clinical characteristics in North Korean refugees.MethodsNorth Korean refugees living in South Korea (48 males, 129 females; mean age 38.22±12.24 years) and South Koreans (112 males, 203 females; mean age 39.48±10.32 years) completed the following questionnaires: the Self-reported Questionnaire on Insomnia, Center for Epidemiological Studies-Depression Scale (CES-D), Trauma Exposure Check List for North Korean Refugees, and the Impact of Event Scale-Revised (IES-R).ResultsNorth Korean refugees had insomnia more often than South Koreans did (38.42% vs. 8.89%). Depression combined with insomnia was also more prevalent in North Korean refugees (28.25% vs. 3.17%). Compared with South Koreans with insomnia, North Korean refugees with insomnia showed higher CES-D scores. The North Korean refugees with insomnia had experienced a larger number of traumatic events, and had higher CES-D and IES-R scores compared to North Korean refugees without insomnia. Insomnia in North Korean refugees was also associated with the presence of significant depressive and post-traumatic stress disorder (PTSD) symptoms.ConclusionInsomnia was common in North Korean refugees and was closely associated with depressive and PTSD symptoms. Our study suggests that complaints of insomnia may indicate more severe psychopathology, especially in refugees.

Sleep is a crucial factor for human health and is closely related to quality of life. Sleep disturbances constitute a health problem that should be solved, especially when it affects the elderly. This study aims to examine the effectiveness of information and communication technologies (ICT) interventions in managing sleep disturbances in the elderly. The study used a systematic review of three databases: Ovid-Medline, Ovid-EMBASE, and the Cochrane library database for papers published till 15 April 2021. Two authors independently selected and screened relevant studies based on predefined inclusion criteria. The meta-analysis of randomized controlled trials (RCTs) was carried out using Review Manager 5.4. Two authors independently screened the titles and abstracts of 4297 studies considering both inclusion and exclusion criteria. The complete texts of 47 articles were then evaluated, 31 articles were excluded, and finally, 16 articles were selected. Our meta-analysis showed that the cognitive-behavioral therapy for insomnia (CBT-I) group had a significantly reduced Insomnia Severity Index (ISI) compared to the control group (−4.81 [−5.56, −4.06], p < 0.00001, I2 = 83%) in RCTs, with a significant reduction in ISI (3.47 [1.58, 5.35], p = 0.0003) found in quasi-experimental studies. A significant improvement was found in total sleep time in the CBT-I group compared to the control group (29.24 [15.41, 43.07], p <0.0001) in RCTs, while the CBT-I group showed significantly reduced wake time after sleep onset compared to the control group (−20.50 [−26.60, −14.41], p < 0.00001). In addition, a significant reduction in depression was found in the CBT-I group compared to the control group (−2.11 [−2.85, −1.37], p < 0.00001, I2 = 0%) in RCTs. The quality of life–mental component score (5.75 [1.64, 9.87], p = 0.006, I2 = 0%) and the quality of life–physical component score (5.19 [0.76, 9.62], p = 0.02, I2 = 0%) showed significant improvement in the CBT-I group compared to the control group. ICT interventions showed positive effects on sleep disturbances of the elderly, specifically confirming the positive effect on depression and quality of life as well as the indicators directly related to sleep such as ISI and quality of sleep. Thus, the application of ICT in the healthcare sector will be greater in the future, with changes in the nursing education and practice guidelines so that nurses can play a pivotal role in promoting health behaviors such as sleep-related quality of life and daily activities of the elderly.

Background The present study investigated associations between defense mechanisms and life satisfaction among North Korean refugees living in South Korea. Methods A total of 178 North Korean refugees completed the Korean version of the Defense Style Questionnaire, a revised version of the Ways of Thinking of North Korean Defectors scale, the Center for Epidemiologic Studies-Depression Scale, and the State–Trait Anxiety Inventory. Multiple stepwise regression analysis was performed to investigate the defense mechanisms associated with North Korean refugees’ life satisfaction in South Korea. Results Among defense mechanisms, denial most strongly predicted higher overall and economic satisfaction among North Korean refugees living in South Korea (β = 0.145, p < 0.01; β = 0.137, p = 0.03, respectively) after controlling for age, gender, anxiety, depression, and number of traumatic events experienced. Furthermore, resignation predicted lower overall (β = −0.206, p < 0.001) and economic satisfaction (β = −0.134, p = 0.02). However, the association between resignation and life satisfaction was not significant after controlling for depression, anxiety, and number of traumatic events experienced. Conclusions Specific defense mechanisms such as high denial and low resignation were associated with life satisfaction in South Korea among North Korean refugees. Our findings suggest that refugees’ psychological defense mechanisms may affect their satisfactory resettlement.