• Journal of Korean Clinical Nursing Research
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• v.28 no.1
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• pp.23-33
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• 2022

Purpose: This study aimed to identify the relationships among disease severity, anxiety, depression, social support, unpleasant symptoms and self-care among patients with atrial fibrillation based on the unpleasant symptom theory, and to examine the mediating effects of unpleasant symptoms. Methods: A cross-sectional study was conducted. The participants were 216 patients with atrial fibrillation who were being followed up on an outpatient basis at a university hospital in Seoul. Data were collected from November 1, 2020 to June 30, 2021, using self-report questionnaires. Data were analyzed using IBM SPSS/WIN 27.0 and PROCESS macro with 95% bias-corrected bootstrap confidence interval(CI). Results: The average age of participants in this study was 66.0years. Disease severity (β=10.19, p<.001) and depression (β=1.53, p<.001) had significant positive relationships with unpleasant symptoms. Also, unpleasant symptoms (β=-0.03, p=.006) had a negative relationship with physical activity, which is a subscale of self- care. Social support (β=0.06, p<.001) was positively related with physical activity. Unpleasant symptoms showed a mediation effect in the relationship between disease severity and physical activity (Bias corrected bootstrap CI -0.65, -0.04). Depression had an indirect effect on physical activity that was mediated by unpleasant symptoms (Bias corrected bootstrap CI -0.11, -0.00). Conclusion: The findings of this study suggest that integrated strategies including physical, psychological, and social factors should be considered to promote self-care in patients with atrial fibrillation.

• Journal of Convergence for Information Technology
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• v.8 no.1
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• pp.59-67
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• 2018

This study was conducted to identify convergence factors affecting depressive symptoms of postmenopausal women through the theory unpleasant symptom. This study was secondary data analysis form Sixth Korea National Health and Nutrition Examination Survey 2015. Study sample of 1,298 menopausal women to evaluate the factors that would influence depressive symptoms, physiological factors, situational factors, and psychological factors. The results showed that significant variables influencing the depressive symptom were income quartile(${\beta}=-.14$, p<.001), health status(${\beta}=.24$, p<.001), and stress(${\beta}=-.20$, p<.001). The explanation power of this regression model was 14. 1% and it was statistically significant. As a result, to improve their depressive symptoms, the nursing interventions are required for postmenopausal women who have the income, health status, and stress.

• Journal of Korean Academy of Nursing
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• v.35 no.4
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• pp.728-736
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• 2005

Purpose. The purpose of this study was to identify direct, mediating, and moderating relationships of mood disturbance, symptom experience, and attentional function in Korean women with breast cancer based upon a middle-range theory of unpleasant symptoms. Methods. This study used a cross-sectional, correlational design. A convenience sample of 125 women receiving chemotherapy for breast cancer was recruited from a university hospital in South Korea. The women completed questionnaires on mood disturbance, symptom experience, and attentional function using the Linear Analogue Self-Assessment Scale, the Symptom Experience Scale, and the Attentional Function Index, respectively. Results. Each mood disturbance and symptom experience showed a significant relationship with attentional function. Symptom experience did not act as a mediator between mood disturbance and attentional function, but it did act as a moderator: patients with a higher level of mood disturbance exhibited a lower level of attentional function when their symptoms were at the level of medium, but not when their symptoms were either high or low. Conclusion. This suggests that clinical interventions for attenuating the influence of mood disturbance on attentional function may be effective only in women experiencing medium level of symptoms.

• Women's Health Nursing
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• v.28 no.2
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• pp.100-111
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• 2022

Purpose: Based on the theory of unpleasant symptoms (TOUS), this study aimed to examine the direct effect of antecedent factors on health-related quality of life (HRQoL) and its indirect effect via symptoms in Korean women during the late menopausal transition (MT) and early postmenopause. Methods: This cross-sectional survey employed a descriptive correlational research design. The respondents were 152 middle-aged women 40 to 60 years with an intermenstrual interval of 60 days or more (late MT) or less than 5 years from the last menstrual period (early postmenopause). The respondents were recruited through convenience sampling in Busan, Korea, from December 1, 2020, to January 31, 2021. Based on the TOUS, self-report data were collected on perceived health status, psychological distress, social support, menopausal symptoms, and HRQoL. The collected data were analyzed using descriptive statics, independent t-test, one-way analysis of variance, Pearson's correlation coefficient, and the Hayes' PROCESS macro. Results: TOUS was supported on this sample (n=152) of Korean women during the late MT and early postmenopause. Perceived health status, psychological distress, and social support had significant direct relationships with HRQoL. Menopausal symptoms had significant indirect relationships between antecedent factors (perceived health status, psychological distress, and social support) and partially mediated HRQoL. Conclusion: The findings of this study indicate that menopausal symptoms play an important role as an intervening factor of HRQoL in women during the late MT and early postmenopause. Therefore, women need an integrated program that manages antecedent factors and menopausal symptoms to improve HRQoL in these menopausal stages.

• Journal of Digital Convergence
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• v.13 no.4
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• pp.271-281
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• 2015

The purpose of this study was to explore convergence on the theory of unpleasant symptom, and factors affecting quality of life of liver cirrhosis patients. A total of 198 liver cirrhosis patients were recruited symptom experiences, physiologic factors, psychological factors, situational factors, and quality of life. Data were collected from March, to May, 2014 and analyzed using one-way ANOVA, Pearson correlations, multiple regressions analysis with PASW (SPSS) 21.0. Variables such as duration of liver cirrhosis(${\beta}=.19$, p<.001), symptom experiences(${\beta}=.19$, p=.032), physical(${\beta}=.15$, p=.008), psychological(${\beta}=.39$, p<.001) and situational factors(${\beta}=.32$, p<.001) explained 51.8% of variance in quality of life(F=15.57, p<.001). The symptom experiences, physiological, psychological and situational factors should be considered for caring liver cirrhosis patients. Symptoms of postmyocardial infarction (post-MI) patients at risk for progression to heart.

• Korean Journal of Adult Nursing
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• v.17 no.2
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• pp.248-258
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• 2005

Purpose: The purpose of this study is to examine the factors influencing symptom experience in patients with liver cirrhosis(LC). Method: A descriptive correlational study design was used. A convenience sample of 129 subjects was recruited from the gastroenterology department at two university hospitals in Seoul, Korea. Symptom experience in LC was measured with the instrument developed by the researcher based on Theory of Unpleasant Symptoms(Lenz et al, 1995) and the Child-Pugh Score, the Korean version of Profile of Mood States, and the Family Support Questionnaire were used to identify the factors influencing symptom experience. Results: The mean score of symptom experience was relatively low(M=41.67, SD= 24.71). Among individual symptoms, fatigue had the highest score in all dimensions. Fatigue, abdominal distension and/or peripheral edema, muscle cramps, dry mouth, and change in appearance were explored as symptoms needing management. In the regression analysis, symptom experience was found to be influenced significantly by anxiety/depression($R^2=.418$, p=.000) and the severity of LC(Child-Pugh Score)($R^2=.125$, p=.000). These variables explained 54.3% of the variance in symptom experience(F=63.607. p=.000). Conclusion: It suggests that nurses need to take into consideration psychological factor as well as physiological factor in symptom management for patients with LC.

• Journal of the Korea Convergence Society
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• v.10 no.6
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• pp.381-391
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• 2019

The purpose of this study was to identify factors associated with self-care performance in hemodialysis patients based on the unpleasant symptom theory. Data were collected from 237 patients at five hemodialysis clinics in Seoul from March to April 2018. The results were evaluated by the SPSS/WIN 21.0 program. As a result, Self-care performance was positively correlated with hope, family support and medical support, but negatively correlated with emotional symptom experience and physical symptom experience. In multiple step regression analysis, family support, emotional symptom, and hope were independently associated with self-care performance, and the regression model explained 33.2% of the variances predicting self-care performance. The independent factors associated with self-care performance were family support, emotional symptom, and hope. Therefore, self-care performance may be improved by applying the hope program for the patient and the family.

• Perspectives in Nursing Science
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• v.10 no.2
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• pp.87-96
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• 2013

Purpose: The purpose of this study was to investigate the relationships of activity status, anxiety, depression, social support, symptom experience, and functional status in patients with lung cancer based on the theory of unpleasant symptoms. Methods: The participants for this study were 101 lung cancer patients who visited the out-patient department for treatment or follow-up at one hospital in Seoul. Data were collected from January 1 to February 8, 2013 using self-reported questionnaires and clinical records. To measure variables, the functional scale and symptom scale of the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30, EORTC QLQ-Lung Cancer 13, Eastern Cooperative Oncology Group Performance Status, Hospital Anxiety and Depression Scale, and Multidimensional Scale of Perceived Social Support were used in this study. The data were analyzed using SPSS 19.0 software for Windows. Results: The symptom experience showed more severity in patients with lower activity status, higher anxiety and depression. With lower activity status and social support, functional status was lower. When anxiety, depression, and symptom experience were higher, functional status was also lower. The significant factors predicting symptom experience were depression, anxiety, activity status, and social support, which explained 57.8% of the variance. Conclusion: These results suggest that psychological factors such as anxiety and depression had a negative influence on the symptom experience of lung cancer patients. Therefore, providing emotional support based on the patients' needs prior to providing symptom management could be a useful strategy for improving symptom experience and functional status.

• Women's Health Nursing
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• v.24 no.4
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• pp.392-403
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• 2018

Purpose: To identify factors associated with menstrual distress and characterize the relationship between menstrual distress and sleep disturbance in middle-school girls. Methods: Participants in this correlational study were 117 middle-school girls who were recruited through convenience sampling. Data were collected from March 2018 to April 2018 using self-reported structured questionnaires and analyzed using IBM SPSS Statistics 23.0. Factors associated with menstrual distress included physiological, psychological, and situational factors based on the theory of unpleasant symptoms. Results: Age of menarche (${\beta}=-.28$, p<.001), amount of menstruation (${\beta}=.23$, p=.004), lifestyle-related exposure to endocrine-disrupting chemicals (${\beta}=.21$, p=.027), and academic and peer-relationship stress (${\beta}=.19$, p=.025) influenced menstrual distress, explaining 47.4% of the variance in this regression model. The relationship between menstrual distress and sleep disturbance was statistically significant. Sleep disturbance was increased 1.26 folds when dysmenorrhea score increased by one unit (OR=1.26, 95% CI: 1.01~1.58). However, parental support was not a significant moderating factor of sleep disturbance. Conclusion: This study provides basis to develop an intervention strategy to alleviate menstrual discomfort in adolescents and improve their quality of sleep.