• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.14 no.2
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• pp.229-237
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• 2003

Objectives：Among the studies related to excessive computer use, the studies for elementary school students are relatively rare. Because children have relatively poor ability to recognize and express themselves, the carers' information is important to assess the children. This study attempted to investigate the relationship between children's computer use and sociopsychiatric characteristics on the basis of carers' reports. Methods：The subjects of this study were 287 5th- and 6th-grade students in the elementary school in Seoul. The student carers were asked to answer the questions for children's computer use, the computer addiction test modified from Young's parent-child internet addiction test, Korean Personality Inventory for Children(K-PIC). SPSS(version 10) was used to analyse the differnece of computer use between genders and the relation of the computer addiction test with K-PIC. Results：1) The score of computer addiction test was significantly higher in male children than in female children and more male children compared to female children were distributed in the excessive user group. 2) The score of computer addiction test correlated with the scores of most clinical scales of K-PIC and the average scores of most clinical scale were significantly higher in the excessive user group than in the general user group. 3) More children with score above 65 in HPR, DLQ, FAM scale were distributed in excessive user group than in general user group. Conclusion：The 5th- and 6th-grade elementary school students with excessive computer use were found to show more sociopsychiatric problems. With these finding we suggest that social and clinical attention to the children who use computer excessively shoud be required.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.11 no.1
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• pp.100-109
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• 2000

Objective：This was conduced to evaluate the effect of early intervention to promote the development of children with developmental disorders. Methods：49 children(31 in PDD group and 18 in DLD group) participated in a one year day treatment program conduced from 1996 to 1999. They were performed PEP, CARS, and SMS. They were grouped by diagnosis, comorbidity, chronological age and CARS score at the beginning of the program and the treatment effect was compared. Results：The children who participated in the day treatment program showed significant increase in their PEP, SMS score, and decrease trend in their CARS score. When children were grouped by diagnosis, comorbidity, chronological age, and severity in CARS score we did not find out significant difference between groups. Conclusion：Our data suggest that the day treatment program which emphasis on development is effective in treating children with developmental disorders.

• Human Ecology Research
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• v.51 no.6
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• pp.583-590
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• 2013

The purpose of this study was to examine the effects of parental abuse and neglect, as well as that of children's peer attachment, on mobile phone dependency. Data were obtained from the Korean Child-Youth Panel Survey (KCYPS), and the participants were 1,892 (909 boys, 983 girls) elementary students (5th graders) who had a mobile phone. To measure the variables, this study used such scales as the parental abuse and neglect scale, peer attachment scale, and mobile phone dependency scale. The data were analyzed using descriptive statistics, Pearson's correlation, and structural equation modeling analysis. The results of the study were as follows: First, parental abuse and neglect had direct negative effects on children's peer attachment; that is, the more parental abuse and neglect, the less children's peer attachment. Second, parental abuse and neglect had direct positive effects on mobile phone dependency; that is, the more parental abuse and neglect, the greater children's mobile phone dependency. However, children's peer attachment did not directly affect mobile phone dependency; that is, children's peer attachment did not have a mediating effect between parental abuse and neglect, and mobile phone dependency. In conclusion, parental abuse and neglect influence children's peer attachment and mobile phone dependency. Thus this study showed that parental abuse and neglect, rather than children's peer attachment, affect children's mobile phone dependency.

• Child Health Nursing Research
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• v.16 no.4
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• pp.287-296
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• 2010

Purpose: The purpose of this study was to explore and understand life and meaning in life of elementary school students. Methods: Data from 1,790 higher grade elementary school students were analyzed for content of meaning in life. Results: The students described the following: 1) Meanings of living existence included, 'living things', 'importance', 'human life', 'family', 'event', 'eternity', 'origin of life', 'disease', and, 'protection'. 2) Four categories were found for reasons why human life is important, 'solitary', 'limitation', 'valuables', and 'living'. 3) Things that one can do to protect the value of human life were, 'doing safely', 'keep things well', 'altruistic behavior', 'doing sound activity', 'preservation & development', and 'devotion of oneself'. 4) Meaning of life included 'to accomplish plans', and 'to do things' 5) Cases when students felt life had meaning were 'perform meaningful behavior', 'comfortable emotionally', and 'receiving help from others'. 6) The methods by which to live a meaningful life were 'working diligently', 'serving', and 'doing rightly'. Conclusion: These results suggest that students recognize the meaning of life in a most positive way and with a relatively wide scope, but as a few students had a negative orientation, age-appropriate and more systematic education programs are needed.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.2 no.2
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• pp.147-152
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• 1999

Purpose: The aim of this study was to evaluate the prevalence of H. pylori infection in normal preschool children. Methods: Study population consisted of 220 preschool children aged 2 to 5 years in Seoul, Korea. We measured H. pylori specific IgG antibody using the GAP test IgG kit, and samples with concentrations greater than 20 U/ml were considered positive. Results: Of the 220 children, 5 (2.3%) were positive, and thirteen (5.9%) of 220 were equivocally probable positive. Conclusion: The positive rate of H. pylori infection detected by specific IgG antibody in normal preschool children aged 2 to 5 years was approximately 2.3% to 8.2%. This prevalence rate is still high, compared to that of the West. A better knowledge of the transmission of H. pylori is crucial to formulate recommendations for lowering the rate.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.3
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• pp.412-419
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• 2009

The purpose of this study was to provide the reference data evaluating the treatment effect of orthopedic appliances. The skeletal and dental growth increments were measured in 24 normal mixed dentition children (boys: 14, girls: 10) by three serial lateral cephalograms: initial mean age: 9${\pm}$1.3 years, mean observation period: 13${\pm}$1.3 months. Cephalometric changes were analysed. The results were as follows: 1. In boys, the maxilla showed forward and downward growth pattern and the mandible showed forward growth pattern (p<0.05). In girls, the maxilla and mandible showed forward and downward growth pattern(p<0.05). 2. Horizontal growth of both maxilla and mandible in girls was superior to those in boys (A point; girls: 2.39mm, boys: 1.26mm, with p<0.05), whereas vertical growth of both maxilla and mandible in boys was similar to those in girls. 3. The change in tooth axis showed labioversion of upper incisor (p<0.01) and comparatively stable lower incisor position.

• Clinical and Experimental Pediatrics
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• v.48 no.1
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• pp.75-80
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• 2005

Purpose : Internal tibial torsion is prevalent in East Asian countries such as Korea and Japan, where sitting on the floor is common behavior. Internal tibial torsion or excessive lateral tibial torsion may cause esthetical, functional, or psychological problems and also may induce degenerative arthritis in older age. The purpose of this study is to measure the tibial torsion in children of the Jeju area. Methods : Tibial torsion was measured in 1,042 lower extremities of 521 children from one to 12 years of age. The values of transmalleolar angles were analyzed for each age group divided by 6 months. Quadratic and linear regression models were used to fit patterns of changes in mean values of transmalleolar angles. The age at seven, which provides the highest coefficient of determination for quadratic regression analysis, was used as a cut-off point to fit different statistical models. Results : The mean transmalleolar angle was $0.10{\pm}5.79^{\circ}$ in all children,$ 0.90{\pm}5.49^{\circ}$ in males, and $-0.80{\pm}5.97^{\circ}$ in females. The value was $4.25{\pm}4.04$ in 1 year of age, gradually decreased to the lowest level of $-1.98^{\circ}$ in four years and seven months of age, increased again with age until it reached $0.67{\pm}1.10^{\circ}$ at seven years of age, and stayed at that level thereafter. Conclusion : Internal tibial torsion in infancy is known to correct spontaneously in the normal developing process. But in this study, the mean transmalleolar angle in children of Jeju area annually decreased after one year of age; to the lowest angle at four years and seven months of age; increased again gradually to the age of seven; and persisted in that level, about $10^{\circ}$ less than western children, not correcting further thereafter. These findings suggest tibial torsion might be caused by lifestyle, especially sitting on feet. To prevent abnormalities of joints and gaits, early diagnosis of tibial torsion in childhood and posture correction or early treatment when needed, seems to be necessary.

• Clinical and Experimental Pediatrics
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• v.50 no.3
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• pp.292-297
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• 2007

Purpose : Kawasaki disease (KD) rarely occurs in school-aged children. We clarified the characteristics of KD in this age group to provide tips for a high index of suspicion. Methods : Features of 38 patients with KD who were 7 years of age or older were retrospectively reviewed. Results : The incidence of the KD patients ${\geq}7years$ was 4.9 percent. The ratio of male to female was 2.5:1. Of the 38 patients, nine patients (24.0 percent) were diagnosed with typical KD and 29 patients (76.0 percent) with incomplete KD. In incomplete KD patients, cervical lymphadenopathy (69.0 percent) occurred most frequently, followed by conjunctival injection (62.0 percent) and polymorphous rash (45.0 percent). These patients occasionally presented with other additional symptoms including abdominal pain, headache, vomiting and arthralgia. Incomplete KD was initially diagnosed as cervical lymphadenitis (34.0 percent), viral infection (14.0 percent), scarlet fever (7.0 percent), meningitis (7.0 percent), and Kikuchi disease (7.0 percent). Coronary complications were noted in 15 patients (39.0 percent). Of the 37 patients treated with intravenous immunoglobulin, five (14.0 percent) were resistant to the therapy and all had coronary abnormalities. Conclusion : Most patients with KD ${\geq}7years$ of age have incomplete presentations. They tend to have a higher incidence of initial presentations of unilateral neck mass and coronary artery involvement. In school-aged children, fever and cervical lymphadenitis or suspected neck infection unresponsive to intravenous antibiotics should signal the possibility of KD. A high index of suspicion and prompt treatment is essential in this age group of patients.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.15 no.1
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• pp.61-74
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• 2004

Objectives：This study was performed to introduce a psychoeducational family therapy model for the families of schizophrenic patient and to investigate the effect of this model on the changes in coping style and depressive symptoms of the family members, and in perception of emotional support by families and depressive symptoms of patients. Methods：Nine preschool children, 3-5 years old, experiencing physical injuries caused by attack from a psychotic patient at kindergarten, were evaluated for psychological assessments；Intelligence test, MSSB(MacArthur Story-Stem Battery), H-T-P test(House-Tree-Person test). And their parents completed rating scale, KPI-C(Korean Personality Inventory for Children about children’s psychological conditions). Results：With respects to the contents and emotional reactions of MSSB, 9 preschool children showed generally high levels of anxiety, depression, avoidance, aggression, probably related to the traumatic experiences. Even though children couldn't verbally report directly about their traumatic experiences, in both MSSB, structured play narrative assessment tool, and HPT, free drawing and association test, they demonstrated psychiatric problems through reenactment plays, regardless of clinical diagnoses. Conclusion：Present study allowed us the chance to see beyond the outer pathological behaviors of PTSD in preschool children, through deeper evaluations of their mental representation. These preliminary data suggest deep understanding of internal representation would be of help for thorough evaluations and treatment plan for preschool children, experiencing severe trauma.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.17 no.1
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• pp.19-26
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• 2006

Objectives : The object of this study was to examine computer game playing patterns and psychopathologies related to computer game addiction in school-age children. Methods : The subjects were 533 elementary school students (4th to 6th grade) in Kangdonggu, Seoul. We evaluated computer playing patterns of all subjects using computer game playing pattern questionnaire, and determined the risk group of computer game addiction by internet game addiction scale score. We evaluated subscale score of K-CBCL from parents of all subjects, and conducted correlation analysis and logistic regression analysis between computer game addiction and subscale score of K-CBCL. Results : In 488 responders, 10.2% of started playing computer game in preschool age, and 67.2% started at low grade of elementary school. The mean frequency of computer game play per week was 3.66 days. Mean time spent playing computer games per day was 1.89 hours. 'Simply for fun' was the most common reason far playing computer games (40.8%). Male subjects showed statistically significant differences in age of starting computer game, frequency of computer game play per week, reasons for playing computer game and computer game addiction scale scores. There were significant correlations between computer game addiction scale scores and academic performance, somatic complaints, attention problems, and internalizing problems in K-CBCL. But In logistic regression analysis, only attention problems among K-CBCL subscales showed significant predictability to computer game addiction. Conclusion : Upper grade elementary school students experienced computer game playing at the very early age, and spend much time in playing computer games. There were significant correlation and predictability between computer game addiction and attention problems.