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Objective@#The aim of this study was to explore the psychometric properties of the Insomnia Severity Index (ISI) based on modern test theory, such as item response theory (IRT) and Rasch analysis, with shortened versions of the ISI among the general population. @*Methods@#We conducted two studies to evaluate the reliability and validity of the shortened versions of the ISI in a Korean population. In Study I, conducted via online survey, we performed an exploratory factor analysis (n=400). In Study II, confirmatory factor analysis (CFA) was conducted (n=400). IRT and Rasch analysis were performed on all samples. Participants symptoms were rated using the ISI, Dysfunctional Beliefs and Attitudes about Sleep–16 items, Dysfunctional Beliefs about Sleep–2 items, Patient Health Questionnaire–9 items, and discrepancy between desired time in bed and desired total sleep time. @*Results@#CFA showed a good fit for the 2-factor model of the ISI (comparative fit index=0.994, Tucker–Lewis index=0.990, root-meansquare-error of approximation=0.039, and standardized root-mean-square residual=0.046). The 3-item versions also showed a good fit for the model. All scales showed good internal consistency reliability. The scale information curve of the 2-item scale was similar to that of the full-scale ISI. The Rasch analysis outputs suggested a good model fit. @*Conclusion@#The shortened 2-factor ISI is a reliable and valid model for assessing the severity of insomnia in the Korean population. The results are needed to be explored further among the clinical sample of insomnia.
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Objective@#We aimed to explore whether nursing professionals’ psychological states affect their grief response for a patient’s death in the coronavirus disease-2019 (COVID-19) inpatients’ ward. @*Methods@#Survey was conducted among frontline nursing professionals working in COVID-19 inpatients wards at three tertiary-level affiliated hospitals of the University of Ulsan during April 7–26, 2022. Participants’ information such as age, years of employment, or marital status were collected, and their responses to rating scales including Pandemic Grief Scale (PGS) for healthcare workers, Stress and Anxiety to Viral Epidemics-9 items (SAVE-9), Patient Health Questionnaire-9 (PHQ-9), Loneliness and Social Isolation Scale, and Insomnia Severity Scale (ISI) were collected. @*Results@#All 251 responses were analyzed. We observed that 34% reportedly suffered from depression. The linear regression analysis showed that a high PGS score was expected by high SAVE-9 (β=0.12, p=0.040), high PHQ-9 (β=0.25, p<0.001), high loneliness (β=0.17, p=0.006), and high ISI score (β=0.16, p=0.006, F=20.05, p<0.001). The mediation analysis showed that the depression of nursing professionals directly influenced their pandemic grief reaction, and their work-related stress and viral anxiety, insomnia severity, and loneliness partially mediated the association. @*Conclusion@#We confirm that frontline nursing professionals’ depression directly influenced their grief reaction, and their work-related stress and viral anxiety, insomnia severity, and loneliness partially mediated the association. We hope to establish a psychological and social support system for the mental health of nurses working in the COVID-19 wards.
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Objective@#The aim of the present study was to explore whether or not cancer patients’ viral anxiety and depression during the coronavirus-2019 (COVID-19) pandemic were associated with a fear of cancer progression. We also assessed whether coping strategies affected the relationship. @*Methods@#The present cross-sectional survey included cancer patients who visited Ulsan University Hospital in Ulsan, Korea. The participants’ demographic information and responses to the following symptoms rating scales were collected: Stress and Anxiety to Viral Epidemic–6; Patient Health Questionnaire–9; Cognitive Emotion Regulation Questionnaire-short version; or Fear of Progression Questionnaire-short version. @*Results@#Of the 558 cancer patients surveyed, 25 (4.5%) reported that their treatment schedule was delayed during the COVID-19 pandemic. The patients’ fear of progression was found to be related to age (β=-0.08; p=0.011), viral anxiety (β=0.40; p<0.001), depression (β=0.26; p<0.001), and catastrophizing coping strategies (β=0.15; p=0.004), for an overall adjusted R2 of 0.46 (F=66.8; p<0.001). Mediation analysis showed that viral anxiety and depression were directly associated with fear of progression, while catastrophizing mediated this relationship. @*Conclusion@#Fear of progression in cancer patients was associated with viral anxiety, depression, and maladaptive coping techniques, such as catastrophizing, during the COVID-19 pandemic.
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OBJECTIVE: This study aimed to investigate the differences of results of Older Adult Behavior Checklist (OABCL) in subjects with dementia, mild cognitive impairment (MCI), and normal group. METHODS: The data was composed of 42 patients with MCI, 71 patients with dementia, and 111 randomly collected participants who were recruited for standardization of Korean version of Achenbach System of Empirically Based Assessment Older Adult Forms. Medical records, results of OABCL, neuropsychological tests, activities of daily living scale, and clinical dementia rating scale of the subjects were retrospectively analyzed to find significant factors in distinguishing the groups. RESULTS: In dementia group, almost of the empirically base problem scales and Diagnostic and Statistical Manual of Mental Disorders (DSM)-oriented scales showed significantly higher scores than MCI or normal groups. MCI group also showed higher scores in several empirically base problem and DSM-oriented scales than normal group. Also, functional impairment, memory/cognition, thought problems, irritable/disinhibited scales of empirically base problem and depressive, dementia, psychotic problems DSM-oriented scales significantly predict in distinguishing the three groups. CONCLUSION: The results implicated that OABCL is not only useful in assessing cognition decline but also in investigating psychological and behavioral problems of older adults.