1.Discovery of Outpatient Care Process of a Tertiary University Hospital Using Process Mining.
Eunhye KIM ; Seok KIM ; Minseok SONG ; Seongjoo KIM ; Donghyun YOO ; Hee HWANG ; Sooyoung YOO
Healthcare Informatics Research 2013;19(1):42-49
OBJECTIVES: There is a need for effective processes in healthcare clinics, especially in tertiary hospitals, that consist of a set of complex steps for outpatient care, in order to provide high quality care and reduce the time cost. This study aimed to discover the potential of a process mining technique to determine an outpatient care process that can be utilized for further improvements. METHODS: The outpatient event log was defined, and the log data for a month was extracted from the hospital information system of a tertiary university hospital. That data was used in process mining to discover an outpatient care process model, and then the machine-driven model was compared with a domain expert-driven process model in terms of the accuracy of the matching rate. RESULTS: From a total of 698,158 event logs, the most frequent pattern was found to be "Consultation registration > Consultation > Consultation scheduling > Payment > Outside-hospital prescription printing" (11.05% from a total cases). The matching rate between the expert-driven process model and the machine-driven model was found to be approximately 89.01%, and most of the processes occurred with relative accuracy in accordance with the expert-driven process model. CONCLUSIONS: Knowledge regarding the process that occurs most frequently in the pattern is expected to be useful for hospital resource assignments. Through this research, we confirmed that process mining techniques can be applied in the healthcare area, and through detailed and customized analysis in the future, it can be expected to be used to improve actual outpatient care processes.
Ambulatory Care
;
Delivery of Health Care
;
Hospital Information Systems
;
Humans
;
Mining
;
Outpatients
;
Prescriptions
;
Tertiary Care Centers
2.Effect of Stress on the Expression of Rho-Kinase and Collagen in Rat Bladder Tissue.
Hana YOON ; Donghyun LEE ; Kyemin CHUN ; Hyunsuk YOON ; Jaeyeong YOO
Korean Journal of Urology 2010;51(2):132-138
PURPOSE: We examined the effect of stress on the pathophysiology of bladder stability in terms of enzyme levels, Rho-kinase, and bladder relaxation. MATERIALS AND METHODS: A total of 48 female Sprague-Dawley rats were studied in scheduled stress environments for 7, 14, and 28 days; 24 rats were in the control group and 24 rats were in the test (stressed) group. RESULTS: Estrogen decreased significantly whereas testosterone and dopamine increased significantly in the stress group (p<0.05). Rho-kinase was significantly increased in the rats exposed to stress stimuli for 14 days (p<0.05). Collagen types I and III in the bladder tissue were significantly higher in rats exposed to stress for 14 days and 28 days (collagen type I in the 14-day group, p<0.01; collagen type I in the 28-day group, p<0.05; collagen type III in the 14-day and 28-day groups, p<0.05). Voiding frequency increased significantly as the duration of stress exposure was prolonged, in addition to a significant decrease in volume per voiding (p<0.05). CONCLUSIONS: The changes observed in micturition pattern, factors that contribute to smooth muscle contraction, and relaxation in the female rat bladder support the hypothesis that stress affects bladder stability.
Animals
;
Collagen
;
Collagen Type I
;
Collagen Type III
;
Contracts
;
Dopamine
;
Estrogens
;
Female
;
Humans
;
Muscle, Smooth
;
Rats
;
Rats, Sprague-Dawley
;
Relaxation
;
rho-Associated Kinases
;
Testosterone
;
Urinary Bladder
;
Urination
3.The Korean Practice Parameter for the Treatment of Attention-Deficit Hyperactivity Disorder(IV): Non-Pharmacologic Treatment.
Bung Nyun KIM ; Hanik K YOO ; Hwayeon KANG ; Ji Hoon KIM ; Dongwon SHIN ; Donghyun AHN ; Su Jin YANG ; Hee Jeong YOO ; Keun Ah CHEON ; Hyunju HONG
Journal of the Korean Academy of Child and Adolescent Psychiatry 2007;18(1):26-30
This practice parameter for non-pharmacological treatment for attention-deficit hyperactivity disorder(ADHD) review the domestic and international literature on the psychosocial treatment of children and adolescents with ADHD. This parameter include the parental training & education, cognitive behavior therapy(group or individual), social skill training, family therapy, play therapy(individual psychotherapy) and non-traditional therapy(art therapy, herbal therapy et al). Among them, there is some proven evidence only in parental training & education and cognitive behavior therapy. So, this parameter describes some details only in the field of parental training & education and cognitive behavior therapy. The efficacy or effectiveness, especially, cost-effectiveness of specific psychosocial treatment method for ADHD cannot be fairly assessed due to the scarcity of controlled clinical data. Based on the clinical expert consensus and limited evidence, we cautiously suggest the practice recommendations about the non-pharmacological psychosocial treatment for children and adolescents with ADHD.
Adolescent
;
Child
;
Cognitive Therapy
;
Consensus
;
Education
;
Family Therapy
;
Humans
;
Parents
;
Phytotherapy
4.The Korean Practice Parameter for the Treatment of Attention-Deficit Hyperactivity Disorder(III): Pharmacologic Treatment.
Hee Jeong YOO ; Su Jin YANG ; Dongwon SHIN ; Hwayeon KANG ; Bung Nyun KIM ; Ji Hoon KIM ; Donghyun AHN ; Hanik K YOO ; Keun Ah CHEON ; Hyunju HONG
Journal of the Korean Academy of Child and Adolescent Psychiatry 2007;18(1):16-25
The objective of this review is to propose the Korean practice guideline for pharmacological treatment of attentiondeficit hyperactivity disorder(ADHD). For making the guideline, the authors used the evidence-base approaches derived from a detailed review of literature including wide range of controlled clinical trials, studies of side effects of drugs, toxicological reports, and meta-analyses published in United States and Europe, as well as inside Korea. The review committee composed of experts in ADHD in Korea has reviewed the parameter. The practice parameter for pharmacological treatment describes the use of stimulants, atomoxetine, modafinil, bupropion, tricyclic antidepressants, and alpha-adrenergic agonists and their side effects. The recommendations of pharmacological treatment are proposed at the end of the article.
Adrenergic alpha-Agonists
;
Advisory Committees
;
Antidepressive Agents, Tricyclic
;
Bupropion
;
Europe
;
Korea
;
United States
;
Atomoxetine Hydrochloride
5.The Korean Practice Parameter for the Treatment of Attention-Deficit Hyperactivity Disorder(II): Diagnosis and Assessment.
Keun Ah CHEON ; Ji Hoon KIM ; Hwayeon KANG ; Bung Nyun KIM ; Dongwon SHIN ; Donghyun AHN ; Su Jin YANG ; Hanik K YOO ; Hee Jeong YOO ; Hyunju HONG
Journal of the Korean Academy of Child and Adolescent Psychiatry 2007;18(1):10-15
Probably the three most important components to a comprehensive evaluation of patients with attention-deficit hyperactivity disorder(ADHD) are the clinical interview, the medical examination, and the completion and scoring of behavior rating scales. Teachers and other school personnel are often the first to recognize that a child or adolescent might have ADHD, and often play an important role in the help-seeking/referral process. A diagnostic evaluation for ADHD should include questions about ADHD symptoms, other problems including alcohol and drug use, family history of ADHD, prior evaluation and treatment for ADHD. Screening interview or rating scales as well as interviews should be used. When it is feasible, clinicians may wish to supplement these components of the evaluation with objective assessments of the ADHD symptoms, such as psychological tests. These tests are not essential to reaching a diagnosis, however, or to treatment planning, but they may yield further information about the presence and severity of cognitive impairments that could be associated with some cases of ADHD. Screening for intellectual ability and academic achievement skills is also important in determining the presence of comorbid developmental delay or learning disabilities. The number and type of symptoms required for a diagnosis of ADHD vary depending on the specific subtype. To receive a diagnosis of ADHD, the person must be experiencing significant distress or impairment in daily functioning, and must not meet criteria for other mental disorders which might better account for the observed symptoms such as mental retardation, autism or other pervasive developmental disorders, mood disorders, anxiety disorders. This report aims to suggest a practice guideline of assessment and diagnosis for children and adolescents with ADHD in Korea.
Adolescent
;
Anxiety Disorders
;
Autistic Disorder
;
Child
;
Diagnosis*
;
Humans
;
Intellectual Disability
;
Korea
;
Learning Disorders
;
Mass Screening
;
Mental Disorders
;
Mood Disorders
;
Psychological Tests
;
Weights and Measures
6.Victims of Bullying among Korean Adolescents: Prevalence and Association with Psychopathology Evaluated Using the Adolescent Mental Health and Problem Behavior Screening Questionnaire-II Standardization Study Data.
Soo young BHANG ; Hanik K YOO ; Ji Hoon KIM ; Bongseog KIM ; Young Sik LEE ; Donghyun AHN ; Dong Su SUH ; Soo Churl CHO ; Jun Won HWANG ; Geon Ho BAHN
Journal of the Korean Academy of Child and Adolescent Psychiatry 2012;23(1):23-30
OBJECTIVES: This study was conducted to investigate the prevalence of victims of bullying and the demographic characteristics of victims, and their related psychopathology, in a Korean nationwide sample of youths in middle and high school over a one month period. METHODS: During the autumn of 2009, students in the 7th to 12th grades at 23 secondary schools participated in a nationwide, cross-sectional study. The study subjects completed the Adolescent Mental Health and Problem Behavior Screening Questionnaire- II (AMPQ-II) and Symptom Checklist-90-Revision (SCL-90-R). Based on the data acquired, descriptive statistics, correlation coefficients and multiple logistic regression analysis were performed. RESULTS: Among the 3364 participants, 2272 (67.54%) completed the questionnaire. The prevalence of victimization was 28.9%. Male gender was positively associated with victimization, and grade level was negatively related to victimization. The AMPQ-II bullying score (Factor 4) was significantly (p<.001) and positively correlated to the AMPQ-II student total score (r= 0.50), Worry and thought (Factor 1 ; r=0.38), Mood and suicide (Factor 2 ; r=0.31), Academic and Internet-related problems (Factor 3 ; r=0.24), Rule violations (Factor 5 ; r=0.23), and AMPQ-II teacher total score (r=0.11). Somatization (r=0.23), Obsessive-compulsive behavior (r=0.24), Interpersonal sensitivity (r=0.30), Depression (r=0.33), Anxiety (r=0.26), Hostility (r=0.30), Phobic anxiety (r=0.22), Paranoid ideation (r=0.36), and Psychoticism (r=0.31) results from the SCL-90-R were also found to be positively related to the AMPQ-II bullying score, and remained significant after adjusting for age and gender. A total of 26% of the victims reported suicidal ideations as compared to 9% of non-victims over the month prior to the evaluation (chi2=119.595, df=1, p<.001). The multiple logistic regression analysis indicated that the AMPQ-II bullying score significantly increased the risk of suicidal ideation [Exp(b)=1.55, df=1, p<.001] after adjusting for age and gender. CONCLUSION: School bullying was highly prevalent among Korean middle and high school students. This study provided strong evidence that suicidal ideation and psychopathology were serious problems among the victims of bullying.
Adolescent
;
Anxiety
;
Bullying
;
Crime Victims
;
Cross-Sectional Studies
;
Depression
;
Hostility
;
Humans
;
Logistic Models
;
Male
;
Mass Screening
;
Mental Health
;
Prevalence
;
Psychopathology
;
Suicidal Ideation
;
Suicide
;
Surveys and Questionnaires
7.Revision of Adolescent Mental Health and Problem Behavior Screening Questionnaire : Development of Adolescent Mental Health andProblem Behavior Screening Questionnaire-II.
Soo Young BHANG ; Hanik K YOO ; Ji Hoon KIM ; Bongseog KIM ; Geon Ho BAHN ; Donghyun AHN ; Dong Su SUH ; Soo Churl CHO ; Jun Won HWANG ; Young Sik LEE
Journal of the Korean Academy of Child and Adolescent Psychiatry 2011;22(4):271-286
OBJECTIVES: The purposes of this study were to develop a mental health screening questionnaire and the practical intervention programs or guidelines which can be used in middle and high schools by students and teachers. METHODS: The Adolescent Mental health & Problem behavior Screening Questionnaire II (AMPQ-II) was developed and was tested for reliability and validity using nationwide data from 2,180 middle and high school students and 2,145 teachers. RESULTS: The AMPQ-II was measured by both students and teachers. The correlation coefficient of the test-retest test was 0.567 and internal consistency was high (Cronbach's alpha=0.878). Five factors such as worry and thought, mood and suicide, academic and Internet-related problems, peer problems, and rule violations were proposed. We also developed a practical guideline and manuals which can be easily used by secondary school teachers to screen for and manage mental health problems at school. CONCLUSION: The AMPQ-II can be a useful and reliable tool to screen for mental health problems in middle and high schools in South Korea.
Adolescent
;
Humans
;
Mass Screening
;
Mental Health
;
Reproducibility of Results
;
Republic of Korea
;
Suicide
;
Surveys and Questionnaires
8.Revision of Adolescent Mental Health and Problem Behavior Screening Questionnaire : Development of Adolescent Mental Health andProblem Behavior Screening Questionnaire-II.
Soo Young BHANG ; Hanik K YOO ; Ji Hoon KIM ; Bongseog KIM ; Geon Ho BAHN ; Donghyun AHN ; Dong Su SUH ; Soo Churl CHO ; Jun Won HWANG ; Young Sik LEE
Journal of the Korean Academy of Child and Adolescent Psychiatry 2011;22(4):271-286
OBJECTIVES: The purposes of this study were to develop a mental health screening questionnaire and the practical intervention programs or guidelines which can be used in middle and high schools by students and teachers. METHODS: The Adolescent Mental health & Problem behavior Screening Questionnaire II (AMPQ-II) was developed and was tested for reliability and validity using nationwide data from 2,180 middle and high school students and 2,145 teachers. RESULTS: The AMPQ-II was measured by both students and teachers. The correlation coefficient of the test-retest test was 0.567 and internal consistency was high (Cronbach's alpha=0.878). Five factors such as worry and thought, mood and suicide, academic and Internet-related problems, peer problems, and rule violations were proposed. We also developed a practical guideline and manuals which can be easily used by secondary school teachers to screen for and manage mental health problems at school. CONCLUSION: The AMPQ-II can be a useful and reliable tool to screen for mental health problems in middle and high schools in South Korea.
Adolescent
;
Humans
;
Mass Screening
;
Mental Health
;
Reproducibility of Results
;
Republic of Korea
;
Suicide
;
Surveys and Questionnaires
9.Teachers' Recognition of Victims of School Bullying Using Data from the Adolescents' Mental Health and Problem Behavior Screening Questionnaire-II Standardization Study in Korea.
Jun Won HWANG ; Soo Young BHANG ; Hanik K YOO ; Ji Hoon KIM ; Bongseog KIM ; Donghyun AHN ; Dong Su SUH ; Soo Churl CHO ; Geon Ho BAHN ; Young Sik LEE
Journal of the Korean Academy of Child and Adolescent Psychiatry 2012;23(2):69-75
OBJECTIVES: The current study was conducted in order to investigate teachers'recognition of school bullying using a nationwide database of adolescents in middle and high school in Korea. METHODS: Students in the 7th to 12th grades at 23 secondary schools participated in the current study during the fall of 2009. Subjects completed the self-report form of the Adolescent Mental Health and Problem Behavior Screening Questionnaire-II (AMPQ-II) and Symptom Checklist-90 Revised (SCL-90-R). In addition, relevant teachers used the teachers' rating scale of the AMPQ-II to report their students' status. Differences in the number of bullied students between teachers' recognition and students' report were explored. RESULTS: A total of 2270 subjects provided relevant responses to the questionnaire. While the one-month prevalence of victimization according to students' self-reports was 28.9%, the recognized prevalence by teachers was only 10.6%. For prediction of the presence of school bullying according to students' self reports on the AMPQ-II, item 7 of the teachers' report on the AMPQ-II showed a sensitivity of 16%, a specificity of 92%, a positive predictability of 44%, a negative predictability of 72%, a false positive rate of 8%, a false negative rate of 84%, and an accuracy of 69%, respectively. No significant differences in subscores of students' self reports of the AMPQ-II and SCL-90-R were observed between bullied students who were recognized by teachers and those who were not recognized. In stepwise discriminant analysis, classification of teachers' item 2 and item 7 on the AMPQ-II with respect to school bullying according to students' reports showed an accuracy of 63.4%. Using this model, 75.2% of non-victimized subjects were classified correctly, while only 35.2% of victimized subjects were classified correctly. CONCLUSION: Despite the high prevalence in Korea, teachers' recognition of school violence among their students remains low. Pre-professional and continuing education to improve teachers' understanding of school bullying and knowledge of effective classroom-based prevention activities should be encouraged.
Adolescent
;
Bullying
;
Crime Victims
;
Education, Continuing
;
Humans
;
Korea
;
Mass Screening
;
Mental Health
;
Prevalence
;
Self Report
;
Sensitivity and Specificity
;
Violence
;
Surveys and Questionnaires
10.Korean Thyroid Imaging Reporting and Data System features of follicular thyroid adenoma and carcinoma: a single-center study.
Jung Won PARK ; Dong Wook KIM ; Donghyun KIM ; Jin Wook BAEK ; Yoo Jin LEE ; Hye Jin BAEK
Ultrasonography 2017;36(4):349-354
PURPOSE: This study aimed to assess the diagnostic efficacy of Korean Thyroid Imaging Reporting and Data System (K-TIRADS) features for distinguishing follicular thyroid adenoma (FTA) from follicular thyroid carcinoma (FTC). METHODS: From January 2013 to July 2016, 46 follicular neoplasms in 45 patients who underwent preoperative thyroid ultrasonography (US) and thyroid surgery were included. The US features of each thyroid nodule were retrospectively evaluated by a single radiologist using a picture archiving and communication system. The diagnostic indices of K-TIRADS for follicular neoplasms were calculated according to whether K-TIRADS category 4 lesions were excluded or classified as benign or malignant. RESULTS: Of the 46 follicular neoplasms (mean size, 3.1±1.6 cm), 37 were FTAs (mean size, 3.1±1.7 cm) and nine were FTCs (mean size, 3.0±1.5 cm). A statistically significant difference was found between FTAs and FTCs regarding the margin (P=0.035), while no significant differences were observed in the composition, echogenicity, shape, orientation, calcification, or vascularity of the lesions (P<0.05). The FTAs belonged to K-TIRADS categories 3 (n=22) and 4 (n=15), while the FTCs belonged to K-TIRADS categories 3 (n=4), 4 (n=4), and 5 (n=1). However, there was no statistically significant difference in the distribution of K-TIRADS categories between FTAs and FTCs (P=0.184). CONCLUSION: K-TIRADS features were not helpful for distinguishing FTA from FTC, although follicular neoplasms showed a high prevalence of K-TIRADS categories 3 and 4.
Adenocarcinoma, Follicular
;
Humans
;
Information Systems*
;
Prevalence
;
Retrospective Studies
;
Thyroid Gland*
;
Thyroid Neoplasms*
;
Thyroid Nodule
;
Ultrasonography