• 대한치과교정학회지
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• 제50권3호
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• pp.170-180
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• 2020

Objective: To compare short- and long-term dentoalveolar, skeletal, and rotational changes evaluated by Björk's structural method of superimposition between children with Class II malocclusion treated by functional appliances and untreated matched controls. Methods: Seventy-nine prepubertal or pubertal children (mean age, 11.57 ± 1.40 years) with Class II malocclusion were included. Thirty-four children were treated using an activator with a high-pull headgear (Z-activator), while 28 were treated using an activator without a headgear (E-activator). Seventeen untreated children were included as controls. Lateral cephalograms were obtained before treatment (T1), after functional appliance treatment (T2), and after retention in the postpubertal phase (T3). Changes from T1 to T2 and T1 to T3 were compared between the treated groups and control group using multiple linear regression analysis. Results: Relative to the findings in the control group at T2, the sagittal jaw relationship (subspinale-nasion-pogonion, p < 0.001), maxillary prognathism (sella-nasion-subspinale, p < 0.05), and condylar growth (p < 0.001) exhibited significant improvements in the Z- and E-activator groups, which also showed a significantly increased maxillary incisor retraction (p < 0.001) and decreased overjet (p < 0.001). Only the E-activator group exhibited significant backward rotation of the maxilla at T2 (p < 0.01). The improvements in the sagittal jaw relationship (p < 0.01) and dental relationship (p < 0.001) remained significant at T3. Condylar growth and jaw rotations were not significant at T3. Conclusions: Functional appliance treatment in children with Class II malocclusion can significantly improve the sagittal jaw relationship and dental relationships in the long term.

• 한국노년학
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• 제31권4호
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• pp.905-923
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• 2011

본 연구는 손자녀 양육 조부모와 그들의 자녀 사이에서 손자녀 양육으로부터 비롯되는 갈등 요인을 밝히고자 하였다. 이를 위해 제3차 국민노후보장패널자료를 분석 데이터로 사용하여 손자녀 양육 조부모와 그들의 성인 자녀와의 갈등에 영향을 미칠 수 있는 요인을 손자녀 양육 조부모의 인구사회학적 요인과 경제적 요인, 돌봄 관련 요인, 건강 요인, 가족관계 요인을 중심으로 분석하였다. 분석결과 첫째, 조부모가 남성일수록, 연령이 높을수록, 학력이 높을수록, 종교가 없을수록, 비취업자인 경우에 자녀와의 갈등이 높은 것으로 나타났다. 둘째, 조부모의 근로소득과 금융소득이 없는 경우, 사적이전소득이 있을 경우, 즉 경제적으로 어려운 경우에 자녀와의 갈등이 높은 것으로 나타났다. 셋째, 손자녀의 연령이 낮을수록, 손자녀 양육 대가가 없는 경우, 손자녀 양육으로 인해 근로나 소득활동을 중단 또는 단축한 경우에 자녀와의 갈등이 높았으며, 조부모의 신체적 건강상태가 좋을수록, 정신적 건강상태가 나쁠수록 자녀와의 갈등이 높았다. 마지막으로 조부모의 가족관계 만족도와 배우자관계 만족도가 낮을수록, 자녀와의 관계 만족도가 높을수록 자녀와의 갈등이 높은 것으로 나타났다. 이는 자식을 위해 대가 없이 희생하는 전통노인과는 다른 양상으로서 손자녀 양육 대가 부재와 갈등에 대한 이해가 필요함을 시사한다.

• 아동학회지
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• 제28권4호
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• pp.127-144
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• 2007

Mothers of 101 5- to 6-year-old children were administered the Parenting Efficacy Test (Shin & Jung, 1998; Ann & Park 2002) and the Parenting Stress Index (Lee, Yeom, & Shin, 2000). Children's emotional intelligence (EI) was measured by the Emotional Intelligence Test for Children (Lee & Lee, 2004b). Data were analyzed by correlation and multivariate analysis of variance (MANOVA). Correlation analysis demonstrated a relationship of parenting efficacy and stress with child's EI. MANOVA revealed that children, whose maternal parenting efficacy was in the upper thirty percent, showed higher EI than parenting efficacy in the lower thirty percent : children whose maternal parenting stress was in the upper thirty percent, showed lower EI than those with stress in the lower thirty percent.

• 아동학회지
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• 제28권4호
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• pp.19-33
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• 2007

This study examined the effects of closeness of peer relationships on intersubjectivity in young children's joint story making of wordless picture books. The joint story making activity of 32 five-year-old children was videotaped and transcribed, and the structure and negotiation types of interaction were examined by Goncu's (1993a) measure of intersubjectivity. Results showed (1) closeness of peer relationship was related to the structure of intersubjectivity children working with very close peers exhibited more turns. (2) Children working with very close peers used more extension and acceptance negotiation types, whereas the children working with non-close peers used more building-on of own ideas and irrelevant acts of negotiation.

• Human Ecology Research
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• 제58권3호
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• pp.299-313
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• 2020

This study investigated the relationship among fathers' parenting involvement, mothers' parenting competence, and young children's self-control. Participants consisted of 325 mothers and young children (169 boys and 153 girls) from the Seoul area who completed questionnaires on fathers' parenting involvement, mothers' parenting competence, and young children's self-control. Data were statistically analyzed using basic descriptive statistics, Pearson's correlation, and multiple regression analysis. Baron and Kenny's method was examined. Subsequently, the Sobel test was performed to check the mediating model's significance and was adapted to SPSS version 21.0 for Windows. The major findings were as follows. First, fathers' parenting involvement was positively correlated with young children's self-control and mothers' parenting competence. Second, mothers' parenting competence was positively correlated with young children's self-control. The mothers' parenting competence indicated a tendency to play a perfectly/partially play a mediating role between fathers' parenting involvement and young children's self-control; consequently, a fathers' parenting involvement had a direct effect as well as an indirect effect through the mothers' parenting competence on young children's self-control. The results indicated that a mothers' parenting competence plays a crucial role in the relationship between a fathers' parenting involvement and the young children's self-control.

• 한국보육지원학회지
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• 제19권6호
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• pp.79-95
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• 2023

Objective: This study examines the relationships among four-year-olds' counting skills, their use of number words, and their mothers' use of number words during mother-child free play. Specifically, we assess whether children's use of number words mediates the relationship between their counting skills and their mothers' use of number words during play. Methods: Forty-two 4-year-old children and their mothers were asked to play freely with a given set of toys at their home for 10 minutes. Children also completed a counting skill test. Frequencies of number word use were calculated for mothers and children from transcriptions of the free play. Results: Children's counting skills, the frequency of their number word use, and their mothers' frequency of number word use were positively correlated with each other. Additionally, the frequency of children's number-word use completely mediated the relationship between their counting skills and their mothers' frequency of number-word use. Conclusion/Implications: The results suggest that children's use of number language may play a crucial role in the provision of number-related language input by parents, based on their children's math skills. Practical implications of the findings are discussed.

• 대한가정학회지
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• 제33권1호
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• pp.125-140
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• 1995

The purpose of this study was to answer the following questions. (1) Is there any relationship between father's child-rearing behavior and children's role-taking, between father's child-rearing behaviors and children's prosocial behavior?(2) Is there any relationship between children's role-taking and children's prosocial behavior? (3) Is there any differences in father's child-rearing behaviors, children's role-taking and children's prosocial behavior in relation to children's sex, SES, and mother's job? (4) what are the most important predictor variables which influence on children's role-taking? (5) What are the most important predictor variables which influence on children's prosocial behavior? The subjects of this study were 72boys and 70girls attending the nursery schools and their mothers in Busan. For the measurement of father's child-rearing behaviors, Choi's(1991) questionnare were used and for children's role-taking, children were interviewed with the Flavell's apple-dog stories. children's prosocial behavior was measured by amount of candies to share with classmates. The results were as follows: (1) There were significant correlation between father's child-rearing behaviors and children's role-taking, between father's was positively related to children's prosocial behavior. (2) Children's role-taking was positively related to children's prosocial behavior. (3) There were significant differences in father's child-rearing behaviors, children's role-taking and children's prosocial behavior according to children's sex, SES, and mother's job. (4) Father's child-rearing behaviors and SES were the most important predictor variables influencing on children's role-taking. (5) Children's sex, children's role-taking and father's childrearing behaviors were the most important predictor variables influencing on children's prosocial behavior. The findings stated above seemed father's child-rearing behaviors and children's role-taking, influenced on children's prosocial behavior.

• 영재교육연구
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• 제20권3호
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• pp.985-1004
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• 2010

본 연구에서는 유아의 정서지능과 영재성이 유아의 성별에 따라 차이를 나타내는지를 살펴보고 유아의 정서지능이 유아의 영재성과 어떠한 관계가 있는지를 분석하였다. 본 연구는 유치원에 재원중인 5세 유아 268명을 연구대상으로 하였다. 본 연구의 결과는 다음과 같다. 첫째, 유아의 정서지능이 성별에 따라 차이가 있는지를 살펴본 결과, 유아의 정서지능은 성별에 따라 유의미한 차이가 있었다. 여아의 정서지능은 남아의 정서지능보다 높은 것으로 나타나났다. 둘째, 유아의 영재성이 성별에 따라 차이가 있는지를 살펴본 결과, 유아의 영재성은 성별에 따라 유의미한 차이가 없었다. 셋째, 유아의 정서지능과 유아의 영재성의 관계를 살펴본 결과, IQ뿐 아니라 유아의 정서지능의 하위변인 중 자기정서의 이용, 자기정서의 인식 및 표현, 또래와의 관계가 유아의 영재성을 예언하는 변인들로 나타났다. 특히 유아의 자기정서의 이용은 유아의 영재성을 예언하는 중요한 변인이었다. 이는 유아의 영재성은 유아가 높은 성취를 위해서 스스로를 동기화하고 인내심을 가지며 노력하는 것과 관련성이 있음을 시사하는 것이다.

• Clinical and Experimental Pediatrics
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• 제60권2호
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• pp.45-49
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• 2017

Purpose: Serum level of 25-hydroxyvitamin D (25-OHD) is considered as the most appropriate marker of vitamin D status. However, only a few studies have investigated the relationship between 25-OHD and parathyroid hormone (PTH) in children. To this end, this study was aimed at evaluating the lowest 25-OHD level that suppresses the production of parathyroid hormone in children. Methods: A retrospective record review was performed for children aged 0.2 to 18 years (n=193; 106 boys and 87 girls) who underwent simultaneous measurements of serum 25-OHD and PTH levels between January 2010 and June 2014. Results: The inflection point of serum 25-OHD level for maximal suppression of PTH was at 18.0 ng/mL (95% confidence interval, 14.3-21.7 ng/mL). The median PTH level of the children with 25-OHD levels of <18.0 ng/mL was higher than that of children with 25-OHD levels ${\geq}$ 18.0 ng/mL (P<0.0001). The median calcium level of children with 25-OHD levels<18.0 ng/mL was lower than that of children with 25-OHD levels${\geq}18.0ng/mL$ (P=0.0001). The frequency of hyperparathyroidism was higher in the children with 25-OHD levels<18.0 ng/mL than in the children with 25-OHD levels${\geq}18.0ng/mL$ (P<0.0001). Hypocalcemia was more prevalent in the children with 25-OHD levels<18.0 ng/mL than in the children with 25-OHD levels${\geq}18.0ng/mL$ (P<0.0001). Conclusion: These data suggest that a vitamin D level of 18.0 ng/mL could be the criterion for 25-OHD deficiency in children at the inflection point of the maximal suppression of PTH.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제31권4호
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• pp.207-213
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• 2020

Objectives: Although aggressive behavior in children and adolescents with attention-deficit/hyperactivity disorder (ADHD) has previously shown correlations with hyperactivity/impulsivity, few studies have examined its association with inattention or the effect of working memory on aggressive behavior. This study aimed to assess the relationship between inattention and aggressive behavior and the effect of working memory on the relationship between inattention and aggressive behavior in children and adolescents with ADHD. Methods: Thirty-one children and 26 adolescents with ADHD were retrospectively investigated. The subjects completed the Korean Wechsler Intelligence Scale for Children-Fourth Edition (K-WISC-IV), the Korean Child Behavior Checklist (K-CBCL), and the Korean Children's Depression Inventory (CDI). Results: Inattention was positively correlated with aggressive behavior in children and adolescents with ADHD and working memory showed an insignificant correlation. However, working memory had a significant moderating effect on aggressive behavior by interacting with inattention. The moderating effect of working memory manifested when the working memory index score on the K-WISC-IV was 73.5 points or higher, and it had a significant effect on aggressive behavior. Conclusion: This study shows that the severity of inattention and hyperactivity/impulsivity should be addressed to provide appropriate treatment to children and adolescents with ADHD who exhibit aggressive behavior.