• Journal of the Korean Home Economics Association
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• v.36 no.8
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• pp.123-140
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• 1998

The purpose of this study was to verify preschool children can be classified of Attention-Deficit Hyperactivity Disorder (ADHD) children across situation. It also was to examine differences among groups according to sex and age, and to investigate the family caracterisitcs of ADHD groups. The subjects of this study consisted of 228 preschool chilren (147 boys and 136 girls aged from 3- to 7- year-old) drawn from five Child Care Centers in Chung-Ju. Data were analyzed by the frequency, percentages, Cronbach's ${\alpha}$ coefficient, ${\chi}^2$-test, F-test, Tukey post-hoc test, and Pearson correlation using SAS program. The results were as follows: 1. Preschool children could be classified by four diagnostic groups across situation; (1) 168 children (59%) of the control group (no disorder of ADHD), (2) 49 children (17%) of ADHD-Home group (ADHD only at home), (3) 43 children (15%) of ADHD-School group (ADHD only at school), and (4) 23 children (8%) of ADHD-PH group (ADHD both at home and at school). Ratings by parents and by teachers correlated very low with each other, as in previous studies. These results confirm the findings that ADHD be classified across situation. 2. There were significant differences among four groups according to sex and age. In the ADHD-PH groups, the boys is 3 times higher than the girls and the children aged 6- to 7-year-old was shown highly distributed in the pervasive ADHD.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.26 no.4
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• pp.258-265
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• 2015

Objectives : Children with attention-deficit hyperactivity disorder (ADHD) have problems in social interactions. We compared the effect of 10-session social skill training (SST) among two groups, children with pure ADHD, and those with ADHD with comorbidity. Methods : Consecutive 10-session SST was conducted for 34 children from 2006 to 2012. There were 22 children with pure ADHD (male 20, female 2), and 12 children suffering from ADHD with comorbidity (male 11, female 1). All children took medication as prescribed by their doctors before the start of SST. The Child Behavior Checklist (CBCL), the Korean Personality Inventory for Children (K-PIC), the Conner's Rating Scale, the ADHD Rating Scale, and the Home Situation Questionnaire were completed by mothers before and after the SST. All children completed the Child Depression Inventory, the Stat-Trait Anxiety Inventory for Children, the Self-Concept Scale and the ADHD Diagnostic System before and after the SST. Results : Only children with pure ADHD showed improvement in anxiety and self-concept in scales rated by children. In the CBCL rated by parents, the pure ADHD group and the ADHD with comorbidity showed improvement in both externalizing and internalizing subscales. In the K-PIC rated by parents, the pure ADHD group showed improvement in most outcomes and ADHD with comorbidity showed positive change in verbal development. Conclusion : These results suggest that SST has significant positive effects on both the pure ADHD and ADHD with comorbidity group. Further research is needed in order to target diverse comorbidity groups with ADHD to improve the effectiveness of the SST.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.20 no.2
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• pp.90-96
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• 2009

Objectives: This study examined clinical characteristics associated with bullying in children with attention-deficit/hyperactivity disorder(ADHD). Methods.: Children and their parents were asked to fill out a structured self-report form regarding bullying incidents. To evaluate the characteristics of the children, the results of the ADHD Rating Scale, the Korean version of the Child Behavior Checklist, the ADHD Diagnostic system and the Emotional Recognition Test were used. The agreement of bullying data between each child and their mother and father was measured using Cohen's kappa. The association between victim and perpetrator was analyzed by calculating a contingency coefficient based on chi-square. To compare the characteristics of victimized children and didn't, an independent sample T-test was performed. Results: When children were victims of bullying incidents there was significant agreement between children and parents on the information provided on the self-reports. However, more children reported themselves as a perpetrator of bullying than their parents did. Victimization, that is, the tendency towards being a perpetrator, is associated with the higher level of parental reports of aggressiveness. Conclusion: Victimization of bullying is associated with aggression in children with ADHD. This study suggests that victimized children with ADHD warrant careful evaluation, in particular with regard to the credence placed on parental reports of aggressiveness, and management for aggression.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.18 no.1
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• pp.38-48
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• 2007

Objectives : The K-ARS (Korean ADHD Rating Scale) is one of the most important assessment tool of attention-deficit hyperactivity disorder (ADHD) in Korea. in this study, we presented detailed normative data on the K-ARS for school-aged children in Seoul metropolitan area to put it to practical use. Methods : The subjects were 2,397 students(1,223 boys and 1,174 girls, aged 6-12) from 4 elementary schools in Seoul, and one caretaker of each child completed the K-ARS for parents. Children who showed high scores of the K-ARS for parents were screened, and 2 child psychiatrists interviewed them to make a clinical diagnosis. We compared the mean scores of the K-ARS for parents between ADHD and normal group, and examined the percentage of correct classification. Results : There were some differences in score of the K-ARS for parents according to sex and age, so we presented continuous normative data with T score and subdivided cut-off points for ADHD screening. Interviews with child psychiatrists using DSM-IV criteria were performed to test diagnostic validity, and the difference in every the K-ARS for parents index between ADHD and normal group was significant(p<.001). Using 3 different cut-of points(80th, 90th, 93rd percentage), the accuracies of ADHD correct classification were 67.9, 72.2, 71.1% and all 3 canonical discriminants were significant (p<.05) between ADHD and normal group. Conclusion : The normative data and cut-off points on the K-ARS for parents are useful in screening ADHD children in Seoul metropolitan area.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.18 no.1
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• pp.58-65
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• 2007

Objectives : Motivational factor is a unique contributor to the typically poor academic performance of children with ADHD. However, few study has directly intervened learning motivation in children with ADHD. We conducted this study to explore the direct effects of the learning motivation improvement program applied to children with ADHD. Method The program was designed in order to increase an interest-inducing educational intervention, an academic skills integration, a basic learning activity (reading, writing, and math), and children's self-esteem. We conducted the program twice a week (total 10 sessions) and assessed learning motivation, teaming attitude, self-esteem, academic performance, and problem behaviors of participating children. Results : After the program, teachers reported improvement in teaming motivation. In addition, parents notified sisnificant reduction of problem behaviors. Children reported improvement in a few domains of teaming motivation and learning attitude. Conclusion : While loaming motivation is regarded as an important factor in education, there have been few studies considering this issue in both educational and psychiatric fields. The teaming motivation improvement would be needed in both field in order to reduce the deficits in academic performance in children with ADHD.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.18 no.2
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• pp.154-161
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• 2007

Objectives: The aim of the current study is to test for the association of DRD4 exon III VNTR polymorphism with attention-deficit hyperactivity disorder(ADHD) in Korean children population. Methods: 113 Korean children with ADHD, 102 parents, and 133 control subjects participated with the current study. The distribution of genotypes and alleles of DRD4 exon III VNTR in children with ADHD was compared with that in control subjects. In addition, 69 children with ADHD and their parents were analyzed using the transmission disequilibrium test(TDT). Results: We could not find any significant differences in the distribution of genotypes and alleles at DRD4 exon III VNTR polymorphism between children with ADHD and control subjects. In addition, there was no preferential transmission of long allele of DRD4 exon III VNTR polymorphism. Conclusion: These results suggest that DRD4 is not associated with ADHD in Korean children population.

• Child Health Nursing Research
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• v.14 no.3
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• pp.243-251
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• 2008

Objective: School nurses should be knowledgeable about attention-deficit hyperactivity disorder (ADHD) and have tolerant attitudes to children with ADHD. This study was done to identify school nurses' knowledge about, and attitudes to, ADHD. Methods: A cross-sectional descriptive correlational study was conducted. The participants were the 245 members of a school nurse association in C province in southern part of Korea. Data were collected using a self-report questionnaire. Descriptive statistics, t-test, ANOVA, and Pearson correlation coefficients were used to analyze the data. Results: Of the 245 packets mailed to members, 126 (51.4%) were returned, and of these, 122 packets (49.8%) were suitable for data analysis. School nurses in this study lack knowledge about ADHD. Moreover, school nurses reported low tolerance in their attitudes toward children with ADHD. There was no significant correlation between knowledge and attitudes in the management of ADHD among school nurses. Conclusion: Findings from this study show that school nurses have limited knowledge about ADHD and its treatment with stimulation medication. Moreover, their attitudes toward children with ADHD were in the low tolerant range. An educational program on ADHD for school nurses need to be developed and provided to facilitate the school nurses' role in assessing and caring for children with ADHD.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.21 no.2
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• pp.80-86
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• 2010

Objectives : The purpose of this study was to compare levels of parenting stress and efficacy in mothers of children suffering from attention-deficit hyperactivity disorder (ADHD) and internet addiction disorder (IAD), mothers of children with ADHD alone only, and those with normal children. Methods : Participants were composed of 25 mothers of children with ADHD and IAD, 35 mothers of children with ADHD alone, and 50 mothers of normal children. They completed the Parenting Stress Index (PSI) and Parenting Sense of Competence (PSOC). Results : In comparison with the mothers of normal children, the mothers of children with ADHD and IAD and the mothers of children with ADHD alone showed significantly higher levels of parenting stress and lower parenting efficacy. However, a comparison of mothers of children with ADHD and IAD with those of children with ADHD alone did not show any significant differences in their levels of parenting stress or efficacy. Conclusion : Mothers of children with ADHD, regardless of the presence of IAD exhibited a higher level of parenting stress and a lower level of parenting efficacy than mothers of normal children.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.2
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• pp.199-210
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• 2005

Objective : Attention deficit hyperactivity disorder(ADHD) affects $5-10\%$ of children in Korea, with more boys and girls being diagnosed. Despite seriousness of ADHD, little is known about its causes. From the current genetic epidemiologic studies, ADHD is known as a heritable disorder. Till now, however, there have been very few genetic studies about ADHD in Korea. The aim of the this study is to examine the association between dopamine transporter gone type 1 and ADHD using case-control design in Korean ADHD probands and normal controls. Materials and Method : Child Psychiatric Genetic research team in Seoul National University Hospital, Clinical Research Institute recruited the ADHD probands using clinical interview/observation, diverse rating scales, and neuropsychological tests. For eliminating phenocopy or ADHD, diagnosis of ADHD was based upon clinical data, psychometric data, and parent/teacher reports. Total 85 ADHD-probands were recruited as final study subjects and independent 100 normal adults participated in this study as control group. For all the ADHD probands, and controls, the 3'-UTR-VNTR polymorphism of DAT1 was analyzed. Based on the DAT1 allele and genotype informations, Chi-square test based on case-control design was performed. Results : As for genetic study, total of 85 probands and 100 controls were included for the genetic analysis. Four different alleles, 350bp (7repeat), 440bp (9repeat), 480bp (10repeat) and 520bp (11repeat) were found in DAT1 gene of study subjects. In case-control analysis, ADHD probands and parents have significantly more 9 repeat allele and 9/10 genotype. Also, The probands with 9repeat allele have more commission errors in ADS. Conclusion : The positive association between ADHD and DAT1 gene was replicated in this report like other previous results for caucasian children and Korean children with ADHD. There are ongoing studies on other candidate genes such as DRD4 and DRD5 and it would be required to explore the association of these candidate genes in Korean children with ADHD. These ongoing genetic research will contribute to the understanding of heterogenous genetic and environmental etiologies of ADHD phenotype, which will lead to the development of more comprehensive treatment and preventive interventions for ADHD.

• Journal of the Korea Convergence Society
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• v.12 no.2
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• pp.113-120
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• 2021

The objective of this study is to identify the visual function impairment of children with each type of attention deficit hyperactivity disorder(ADHD). The subjects of this study were 49 children diagnosed with ADHD with visual function out of the normal range. The type of ADHD was investigated using the Korean-ADHD Rating Scale and visual function test. The attention deficit type(69.4%) of ADHD was the most common type among children with ADHD with vision problems. Although their overall naked-eye visual acuity was good, about 50% of the subjects showed problems with visual function. For those with the attention deficit type of ADHD, the myopia-related refractive error was high. For those with the hyperactivity type of ADHD, the astigmatism-related refractive error was higher. For those with vergence function disorder, convergence insufficiency was the most common. As there were differences in the visual impairment characteristics of children with different types of ADHD, it is necessary to approach a child's problem behavior through examination and screening for visual function disorders.