Journal of Yeungnam Medical Science

Original Articles

Risk Factors and Prevalence of Depression in the Patients of Schizophrenia: Jin-Sung Kim, Ji-Ann Ryu, Jong Bum Lee, Wan Seok Seo; Yeungnam Univ J Med. 2007;24(2 Suppl):S296-303. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S296

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Abstract PDF: Background
：This study performed to evaluate the patterns and prevalence of depression in patients with schizophrenia and to identify risk factors, using subjective and objective forms of depression scales. Materials and Methods：Demographic data and psychiatric history were obtained from the 139 participants with schizophrenia. The Beck Depression Inventory, Zung Self-Rating Depression Scale, Hamilton Rating Scale for Depression, and Calgary Depression Scale for Schizophrenia were applied to the participants to evaluate depression.
Results
：Thirty percent of all the participants had significant degree of depression, more in participants of outpatient unit and with earlier onset. Schizophrenic participants had more subjective feeling of depression than objective evaluation, performed by independent evaluators.
Conclusion
：Many schizophrenic patients have significant degree of depression. In treating schizophrenic patients, depression should be considered as an important target and variable of treatment.

Prognostic Factors in Postpsychotic Depressive Disorder of Schizophrenia.: Jin Sung Kim, Jong Bum Lee, Wan Seok Seo, Bon Hoon Koo, Yi Youg Kim, Jung Youp Kim; Yeungnam Univ J Med. 2005;22(2):150-165. Published online December 31, 2005; DOI: https://doi.org/10.12701/yujm.2005.22.2.150

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Abstract PDF: PURPOSE: This study was conducted to investigate the prognostic factors of postpsychotic depressive symptoms in patients with schizophrenia. MATERIALS AND METHODS: Eighty patients were selected based on the diagnostic criteria from the DSM-IV, PANSS and ESRS. For all patients information was collected on demographic and clinical characteristics. The subjective depressive symptoms and the objective depressive symptoms, as well as patients insight regarding psychosis were evaluated. The subjective depressive symptoms were evaluated by BDI and ZDS; the objective depressive symptoms were evaluated by HDRS and CDSS, and patient insight into the psychosis was evaluated by KISP. RESULTS: The comparisons using demographic and clinical characteristics showed that HDRS and CDSS had significant difference with regard to gender and suicide attempts; the BDI was associated with difference in education level and age of onset. The patients with scores above cuff-off score for each scale were 20 (25.0%) for the BDI, 16 (20.0%) for the ZDS, 18 (22.5%) for the CDSS and 6 (7.5%) for the HDRS. The results of the stepwise multiple regression analysis showed that the scores for the KISP, education levels, gender and suicide attempts were the main prognostic factors in patients with the psychotic depressive disorder of schizophrenia. CONCLUSION: The main prognostic factors in psychotic depressive disorder of schizophrenia included: insight into psychosis, suicidal attempts. Insight into the psychosis was the most reliable prognostic factor but this characteristic had a negative relationship to the with depressive symptoms.

A study on discriminant function of psychoticism in schizophrenics.: Jung Hoon Lee; Yeungnam Univ J Med. 1993;10(1):48-57. Published online June 30, 1993; DOI: https://doi.org/10.12701/yujm.1993.10.1.48

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Abstract PDF: The purpose of this study was to investigate the characteristics of personality dimensions of schizophrenics. Subjects in this study were 71 chronic schizophrenics, 59 acute schizophrenics. and 87 normal persons. All subjects was asked to respond to EPQ(Korean Version Eysenck Personality Questionnaire). Collected data were analyzed by using the statistical techniques of discriminant function analysis, t-test and one-way -variable analysis. The results were as follows : Acute and chronic schizophrenics were higher than normal persons on psychoticism score. However, there was no significant difference between chronic and acute schizophrenics on the psychoticism score. Discriminant analysis was adopted to identify the scales in EPQ that were most effective in discriminating between normals and schizophrenics. Psychoticism of EPQ function was the most effective variable that discriminates between the normals and the schizophrenics.

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