Hyung-Jun Yoon

Prof. Hyung-Jun Yoon

Chosun University, College of Medicine
orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 December 2018 in Annals of General Psychiatry
Verified
Journal Article
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ESEun Hyun Seo
Eun Hyun Seo
SKSeung-Gon Kim
Seung-Gon Kim
SKSang Hoon Kim
Sang Hoon Kim
JKJung Ho Kim
Jung Ho Kim
JPJung Hyun Park
Jung Hyun Park
HYHyung-Jun Yoon
Hyung-Jun Yoon
This cross-sectional study investigated the impact of life satisfaction and happiness, as well as the prevalence and correlates of depressive symptoms in a large sample of university students. We included 2338 students at 6 universities in 1 metropolitan city and 2 provinces of Korea. Depressive symptoms were assessed by the Beck Depression Inventory, and scores of 16 or higher were categorized as the presence of depression. Various sociodemographic, life satisfaction, happiness, and clinical factors (alcohol consumption and sleep quality) were measured. According to the presence of depression, sociodemographic, life satisfaction, happiness, and clinical characteristics were compared using statistical analyses. Further, a logistic regression model was constructed to examine the impact of life satisfaction, happiness, and clinical factors on depression. Among participants, 13.4% were identified as having depression. Life satisfaction and happiness were associated with a lower risk of depression, while hazardous alcohol drinking and poor sleep quality were related to a higher risk of depression. In addition, female gender, subjective body shape as obese, and insufficient pocket money were found to be significant correlates of depressive symptoms. This study demonstrated possible risk and protective factors of underlying depressive symptoms. Especially, our findings suggest that improvement in life satisfaction and happiness would be important in the prevention and management of depression. Our findings may contribute to developing specialized mental health programs for prevention, screening, and treatment of depression among university students.

30 September 2013 in BMC Psychiatry
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Journal Article
Open access
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HYHyung-Jun Yoon
Hyung-Jun Yoon
KPKyoung-Min Park
Kyoung-Min Park
WCWon-Jung Choi
Won-Jung Choi
SCSoo-Hee Choi
Soo-Hee Choi
JPJin Young Park
Jin Young Park
Jeong-Ho SeokJeong-Ho Seok
Jeong-Ho Seok
Background: Most previous studies on the efficacy of antipsychotic medication for the treatment of delirium have reported that there is no significant difference between typical and atypical antipsychotic medications. It is known, however, that older age might be a predictor of poor response to antipsychotics in the treatment of delirium. The objective of this study was to compare the efficacy and safety of haloperidol versus three atypical antipsychotic medications (risperidone, olanzapine, and quetiapine) for the treatment of delirium with consideration of patient age. Methods: This study was a 6-day, prospective, comparative clinical observational study of haloperidol versus atypical antipsychotic medications (risperidone, olanzapine, and quetiapine) in patients with delirium at a tertiary level hospital. The subjects were referred to the consultation-liaison psychiatric service for management of delirium and were screened before enrollment in this study. A total of 80 subjects were assigned to receive either haloperidol (N = 23), risperidone (N = 21), olanzapine (N = 18), or quetiapine (N = 18). The efficacy was evaluated using the Korean version of the Delirium Rating Scale-Revised-98 (DRS-K) and the Korean version of the Mini Mental Status Examination (K-MMSE). The safety was evaluated by the Udvalg Kliniske Undersogelser side effect rating scale. Results: There were no significant differences in mean DRS-K severity or K-MMSE scores among the four groups at baseline. In all groups, the DRS-K severity score decreased and the K-MMSE score increased significantly over the study period. However, there were no significant differences in the improvement of DRS-K or K-MMSE scores among the four groups. Similarly, cognitive and non-cognitive subscale DRS-K scores decreased regardless of the treatment group. The treatment response rate was lower in patients over 75 years old than in patients under 75 years old. Particularly, the response rate to olanzapine was poorer in the older age group. Fifteen subjects experienced a few adverse events, but there were no significant differences in adverse event profiles among the four groups. Conclusions: Haloperidol, risperidone, olanzapine, and quetiapine were equally efficacious and safe in the treatment of delirium. However, age is a factor that needs to be considered when making a choice of antipsychotic medication for the treatment of delirium. Trial registration: Clinical Research Information Service, Republic of Korea, (http://cris.nih.go.kr/cris/en/search/basic_search.jsp, Registered Trial No. KCT0000632).

28 February 2019 in Clinical Psychopharmacology and Neuroscience
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Journal Article
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HYHyung-Jun Yoon
Hyung-Jun Yoon
ESEun Hyun Seo
Eun Hyun Seo
JKJae-Jin Kim
Jae-Jin Kim
ICIlhan Choo
Ilhan Choo
Hyung-Jun Yoon, Eun Hyun Seo, Jae-Jin Kim, IL Han Choo. Clin Psychopharmacol Neurosci 2019;17:12-24. https://doi.org/10.9758/cpn.2019.17.1.12

1 October 2015 in Journal of Critical Care
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Journal Article
Closed access
JOJooyoung Oh
Jooyoung Oh
JSJeong-Hyun Sohn
Jeong-Hyun Sohn
CSCheung-soo Shin
Cheung-soo Shin
SNSe Hee Na
Se Hee Na
HYHyung-Jun Yoon
Hyung-Jun Yoon
JPJin Young Park
Jin Young Park

1 August 2016 in Neuroscience Letters
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Journal Article
Closed access
HYHyung-Jun Yoon
Hyung-Jun Yoon
JKJin Seong Kim
Jin Seong Kim
YSYu-Bin Shin
Yu-Bin Shin
SCSoo-Hee Choi
Soo-Hee Choi
SLSeung-Koo Lee
Seung-Koo Lee
Jae-Jin KimJae-Jin Kim
Jae-Jin Kim

18 June 2022 in Annals of General Psychiatry
Verified
Journal Article
Open access
PDF file
ESEun Hyun Seo
Eun Hyun Seo
HYHae-Jung Yang
Hae-Jung Yang
SKSeung-Gon Kim
Seung-Gon Kim
HYHyung-Jun Yoon
Hyung-Jun Yoon
Background: Little is known about the role of protective factors in suicidal ideation among medical students. This study aimed to examine the association between suicidal ideation and protective (self-esteem/ego-resiliency/social support) and risk (depression/social anxiety) factors.Methods: Data on sociodemographic factors, depression, social anxiety, self-esteem, ego-resiliency, social support, and current suicidal ideation were collected from 408 medical students. A logistic regression model was constructed to identify the independent impact of potential influencing factors on suicidal ideation. Potential moderating effects were also explored.Results: Thirty-eight participants (9.3%) reported experiencing suicidal ideation. Younger age, higher levels of depression, social anxiety, and lower levels of self-esteem, ego-resiliency, and social support were found to be significantly correlated with suicidal ideation. In the final model, higher levels of depression and social anxiety were associated with an increased risk of suicidal ideation, while higher levels of self-esteem and social support were associated with a decreased risk of suicidal ideation. Although the independent effect was not significant, the interactions of ego-resiliency with both depression and social anxiety on suicidal ideation were significant. Higher levels of ego-resiliency acted as a buffer against suicidal ideation among those with higher levels of depression or social anxiety.Conclusions: In addition to risk factors, this study revealed the underlying protective and moderating factors of suicidal ideation among medical students. Mental health programs focusing on enhancing ego-resiliency, self-esteem, and social support may contribute to suicide prevention in medical students.