• International Journal of Human Ecology
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• v.5 no.1
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• pp.1-8
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• 2004

The current study uses longitudinal data, which show secondary school students' responses in a biennial data of surveys from England (n=4,326/boys=2,313;girls=2,413) and Scotland (n=3,528/boys=1,744;girls=1,784), to describe the association between availability of cigarette sales to minor, prosmoking attitudes of family members and drinking/drug use and smoking behaviours amongst adolescents. The findings provided strong evidence suggesting that availability of cigarette sales to minor, lack of familial interest on the child's smoking and other substance use were positively associated with the increased level of smoking behaviour in youth. Girls and boys also differed the likelihood of smoking and being a regular smoker. Boys were found to be more likely than girls to be smoking and to be a regular smoker. The implications of promising prevention programmes for preadolescents and areas for future research are presented

• Journal of Nutrition and Health
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• v.24 no.5
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• pp.458-468
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• 1991

The purpose of the study was to find out the eating behavioral difference and various connected factors between boys and girls of middle school students. One hundred ninety boys and two hundred six girls. who were sampled from the third graders of middle school located in Seoul and Chungbuk were asked to lilt out the questionaires. The results are summerized as follows : The boys had a better morning appetite and lower rate of skipping breakfast than the girls had. The girls carried more home-prepared boxed lunches and kept the lunch time better than the boys did. On weekend lunch time became more irregular and students had snacks more often than on weekdays. The number of lunchbox sidedishes was significantly influenced by the family composition, number of siblings, schooling of parents, occupation of tile father, and mother's empolymemt status. The frequency of snacks was significantly influenced by schooling of parents.

• The Journal of the Korean dental association
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• v.18 no.1 s.130
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• pp.65-70
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• 1980

Lateral cephalometric head film measurements on forty schoolboys and forth-nine schoolgirls with excellent occlusions in Korean were compared with similar measurements on Caucasoids. The following conclusions were obtained. 1. The cranio-facial skeletal pattern of Korean students was measured and compared with Caucasoids. 2. In cranio-facial observation, ANB and SN-Palatal plane was not significant in girls only, Gonial angle and 1 to NA were not significant in girls and boys, compared with Caucasoids. 3. In dentition area observation, the mean posterior dental height (A＋B) and occlusal plane length was not significant in girls only, the mean anterior vertical dimension and P angle was not significant in boys, Q angle was not significant in boys in boys and girls, compared with Caucasoids.

• The Journal of Korean Medicine
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• v.21 no.4
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• pp.148-158
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• 2000

Objective : The purpose of this study was to investigate the back shape of school children using the phase-shifting scanning grating projection moire interferometer, which was developed by the Korea Advanced Institute of Science and Technology and is useful in evaluating three dimensional back shape. Methods : In this study the subjects consisted of 1,358 pupils [711 boys(52.36%), 647 girls(47.64%)] attending elementary and middle schools in Seoul. Their ages ranged from nine to fifteen and the average age was 12.2. With the phase-shifting scanning grating projection moire interferometer, the posterior view of the body were taken to see if there are correlations of moire fringe number, width difference between left and right, and correlation between differences in moire fringe number and width on both sides in the scapular, lumbar and gluteal regions. Results : The results were as follows : I. More frequent findings of fringe were observed on the right in all regions : in the scapular region, 309 boys(43.4%) and 156 girls(24.2%) had more fringe numbers on the right side; in the lumbar region, 68 boys(9.5%) and 11 girls(1.7%); and in the gluteal region, 160 boys(22.4%) and 63 girls(9.8%). Such tendency was striking especially in the scapular and lumbar regions, and in boys rather than in girls. In the scapula, 661 subjects(48.7%) with one moire fringe on either side need further attention and 110 subjects(8.I %) with two or more are required to do follow-up radiography for scoliosis. 2. In an analysis of width difference in the trunk, the left side is wider in all regions except for the gluteal region in boys : in the scapular region 21 boys(3.0%) and 103 girls(15.9%); in the lumbar region, 87 boys(12.2%) and 250 girls(38.6%); and in the gluteal region 197 girls(30.4%) had a wider left side and 45 boys(6.3%) showed a wider right side. 3. In correlation analysis of the number of moire fringe and width difference in each region, the side where more moire fringes were observed was significantly wider in the lumbar and gluteal regions, but not in the scapular region.(p<0.01) Conclusions : From these results, it is concluded that the back shape of elementary and middle school students in Seoul shows that the right side had more moire fringes; the left side was wider; and especially in the lumbar and gluteal regions the side where more moire fringes were observed was wider.

• Proceedings of the KSPS conference
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• 2007.05a
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• pp.52-54
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• 2007

This study has investigated the basic data of untrained boys and girls' VRP. The VRP comparison was executed between 5 boys(lO to 11 years old) and girls(10 to 11 years old). The measure of VRP was implemented by using Dr. Speech 4.0(Tiger-electronics) phonetogram program. The comparison of boys and girls' maximum and minimum range, the mean of boys' maximum range is 93.68dB(SD 7.90) and girls' range is 93.12dB(SD 5.11). There was no difference and the mean of minimum range of boy is 68.08dB(SD 3.59), girl is 71.10dB(SD 3.06).

• Journal of the Korean Home Economics Association
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• v.49 no.3
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• pp.79-86
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• 2011

The purpose of this study was to examine the relationships between temperament, social support and positive, as well as negative emotions of institutionalized children. The participants were 198 children aged from 10 to 13 years old. They were recruited from 20 childcare facilities in Seoul. Data were analyzed using Cronbach alphas, factor analyses, frequencies, percentiles, t-tests and hierarchical regression analyses. The major findings were as follows: 1) on average, girls showed higher emotionality in temperament compared to boys. Girls reported greater support of school teacher than boys. Boys experienced significantly higher positive emotions than girls, while girls reported significantly higher negative emotions than boys. 2) Positive emotions were influenced by the support of the institutionalized family as well as school teachers. Negative emotions were influenced by the support of the institutionalized family.

• Child Health Nursing Research
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• v.3 no.2
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• pp.219-227
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• 1997

The purpose of this study was to investigate gender differences in behavioral characteristics and their awareness of obese school children. The results were as follows 1. In comparison with eating habits and food preference, the girls had more irregular breakfast and were likely to have vegetables / fruits than the boys. 2. In characteristics related to exercise and activities, boys did more exercise than girls. Particularly, in lunch free time, boys participated in playing various active excercise with friends, but girls participated in more non-active behaviors (such as, chattering, reading, or playing jack-stones). 3. In comparison with their awareness related to obese persons, about a half of boys had positive opinions (e. grong, healthy.), but about only 20% of girls had positive opinions.

• Journal of Korean Medicine for Obesity Research
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• v.5 no.1
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• pp.97-107
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• 2005

Objectives The purpose of this study was to investigate correlation between short stature and obese degree. And we also wanted to know the characteristics of patients visited clinic in the name of 'short stature'. Methods Height, body weight, BMI, fat mass, lean body mass, percent body fat were taken intended for 236 patients in the name of short stature. To all the patient questionnaire for growth clinic was drawn up, and ultrasound scan was taken through calcaneous of the right foot. The patients were classified to three groups - short, average, tall group - according to relative position of mid-parental height. It was analysed that the differences between groups in obese degree. Also was investigated correlation between position of short stature and obese degree, and between obese degree and bony maturity. Results & Conclusion 1. The average ages of patients in the name of 'short stature' were $12.69{\pm}3.93$ years old in boys, $10.66{\pm}3.67$ years old in girls. And it seemed to be just before second rapid maturing period. 2. The average BMI were $20.58{\pm}4.07kg/m^2$ in boys, $18.65{\pm}2.85kg/m^2$ in girls, and average percent body fat were $21.99{\pm}7.35%$ in boys, $26.01{\pm}6.35%$ in girls. 3. The numbers of obese children were 34(31.2%) in boys, 19(14.9%) in girls on the basis of BMI. And the numbers were 39(35.8%) in boys, 53(41.7%) in girls on the basis of percent body fat. There was a big difference in case of girls. 4. The numbers of AG(average group) were 48(44.0%) in boys, 60(47.2%) in girls, the numbers of SG(short group) were 35(32.1%) in boys, 31(24.4%) in girls, and numbers of TG(tall group) were 26(23.9%) in boys, 35(27.6%) in girls. 5. There were no significant differences among the groups in BMI, lean body mass, fat mass, percent body fat. Only significant difference in DI(disease index). 6. There were no significant correlation between PH(percent height) and BMI, leanbody mass, fat mass, percent body fat. Only significant correlation in DI(disease index). 7. There were no significant differences between DA(difference between bone age and chronorogical age) and BMI, leanbody mass, percent body fat. Only significant correlation in fat mass.

• Korean Journal of Child Studies
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• v.30 no.6
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• pp.523-534
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• 2009

This study examined the mediating role of representation of peers on the relations between children's representation of mother and social competence. Subjects were 547 elementary school children. Baron and Kenny's model (1986) was used to investigate mediating effects. Results were (1) there were no differences in the representation of mother by gender. Girls had more positive representation of peers than boys. (2) Girls' representation of mother had more influence on social competence than boys'. (3) Girls' representation of peers had more influence on social competence than boys'. (4) Representation of peers mediated relations between representation of mother and social competence. Girls' representation of peers had more mediating effect than boys'.

• Journal of Korean Public Health Nursing
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• v.25 no.1
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• pp.38-47
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• 2011

Purpose: The study investigated the effects of 9 weeks of group music rope-jumping training on health-related physical fitness and blood lipid in obese elementary school boys and girls. Method: Subjects were randomly assigned to either a training group (37 boys and 18 girls) or control group (36 boys and 19 girls). The training group exercised for 1 hour, 2 days per week during the 9-week supervised music rope-jumping training program. The control group was asked to maintain their normal daily physical activities. The effects of the interventions on physical fitness and blood lipids were analyzed by two-way repeated measures ANOVA (group ${\times}$ time). Results: There were significant group ${\times}$ time interaction effects on body weight (p<.023), %body fat (p=.09), body mass index (p=.018), and body fat mass (p=.019) in school girls. However, there was not an interaction effect on serum lipids in both genders. Conclusion: The 9-week music rope-jumping training program used was effective for improving body composition in obese elementary school girls.