• The Journal of Korean Society for School & Community Health Education
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• v.1 no.2
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• pp.17-27
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• 2000

This Study carried out for the purpose of basic data collection school teachers in Korea during September 2000 at Seoul, Kangwon province and JeonRaBuk province. 534 teachers among 600 school health teachers was analyzed by SPSS program. The major findings is as follows; 1. Mean score of Job-satisfaction is $25.52{\pm}4.46$ as 50 total point. Staff cooperation $2.96{\pm}.93$ is the highest score and promotion system $2.02{\pm}1.06$ is the lowest score as 5 total point by Job-satisfaction factor 2. Age-specific mean scores are $20.63{\pm}4.44$ at age of $20{\sim}29$, $25.77{\pm}4.15$ at age of $30{\sim}39$, $27.69{\pm}4.63$ at age of $40{\sim}49$ and $27.11{\pm}5.26$ at age of more than 50. 'Promotion', 'Health education', 'Cooperation of school physician', 'Allocation of professional' and 'Professional skill' are significantly different by age group. 3. Job-satisfaction of long period working teachers is higher than that of short workers, 'Salary system' and 'Professional skill' by factor are significantly different. 4. Job satisfaction by area is not significantly different, and 'Professional skill' as a factor of urban is higher than rural area. 5. Job-satisfaction by school level is not significantly different, and 'Health budget', 'Cooperation of school physician', 'Allocation of professional' and 'Professional skill' are significantly different by level of school. 6. Job-satisfaction of big size school is higher than that of small school and 'Health education' of big size school is high. 7. Job-satisfaction of low education is low score and 'Salary', 'Textbook for health education', 'Health facility' and 'Professional skill' are differnt. 8. 'Educational background', 'Size of school' and 'Level of school' are significantly affected to 'Salary system', this three varialbles explained 13.8% of the total. We can express job -satisfaction of 'Salary system' ; y=2.677-$.182X_6$(Education)+$.120X_5$(Size of school)+$.019X_4$(Level of school) 9. 'Age group', 'Working period' and 'Size of school' are affected to 'Cooperation of school physician', and three variables explain 13.2% of total. We can express job-satisfaction of 'Cooperation of school physician' ; y=2.644+$.247X_1$(Age)+$.179X_2$(Working period)-$.133X_5$(Size of school) 10. 'Working period', 'Education of teacher', and 'Working area' are affected professional skill, this three variables explain 13.5% of job-satisfaction of professional skill. We can express 'Professional skill' ; y=3.076+$.11X_2$(Working period)-$1.06X_6$(Education)-$.126X_3$(Working area). 11. 'Education', 'Age', 'Size of school' and 'Working period' are affected to total job-satisfaction, this four variables explain 14.2% of total satisfaction. We can express job-satisfaction of school health teacher; y=19.76-$.126X_6$(Education)+$.215X_1$(Age)+$.107X_5$(Size of school)+$.121X_2$(Working period).

• Korean Journal of Childcare and Education
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• v.17 no.5
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• pp.43-61
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• 2021

Objective: This study aimed to examine the sequential mediating effects of children's perceived maternal acceptance and peer acceptance in the relationship between maternal warmth and first grade children's school adjustment. Methods: Participants in this study were 979 seven-year-old children(498 boys, 481 girls) recruited for the Korea Child Panel Study. Data were analyzed by analyzing descriptive statistics, correlations, and significance of serial mediation pathways using SPSS 18.0 and PROCESS Macro 3.4. Results: Maternal warmth at age five effected perception of maternal acceptance at age six. Perceived maternal acceptance at age six effected perceived peer acceptance at age six. Perceived peer acceptance at age six effected school adjustment at age seven. Lastly, perceived maternal acceptance and peer acceptance at age six had a serial mediation effect between maternal warmth at age five and school adjustment at age seven. Conclusion/Implications: Perceived social acceptance during preschool years should be emphasized in order to promote school adjustment for first grade children. Parent education for promoting better parent child relationships should be considered and teachers should encourage peer play interaction to help children perceive acceptance from their peers.

• Phonetics and Speech Sciences
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• v.3 no.1
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• pp.117-123
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• 2011

Most individuals with hearing impairment have difficulty in understanding speech in noisy situations. This study was conducted to investigate sentence recognition ability using the Korean Standard-Sentence Lists for Preschoolers (KS-SL-P2) in pre-school age children with cochlear implants and hearing aids. The subjects of this study were 10 pre-school age children with hearing aids, 12 pre-school age children with cochlear implants, and 10 pre-school age children with normal hearing. Three kinds of signal-to-noise (SNR) conditions (+10 dB, +5 dB, 0 dB) were applied. The results for all pre-school age children with cochlear implants and hearing aids presented a significant increase in the score for sentence recognition as SNR increased. The sentence recognition score in speech noise were obtained with the SNR +10 dB. Significant differences existed between groups in terms of their sentence recognition ability, with the cochlear implant group performing better than the hearing aid group. These findings suggest the presence of a sentence recognition test using speech noise is useful for evaluating pre-school age children's listening skill.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.23 no.1
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• pp.89-97
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• 2020

Purpose: Obese children may often present with advanced bone age. We aimed to evaluate the correlation between factors associated with childhood obesity and advanced bone age. Methods: We enrolled 232 overweight or obese children. Anthropometric and laboratory data, and the degree of nonalcoholic fatty liver disease (NAFLD) were measured. We analyzed factors associated with advanced bone age by measuring the differences between bone and chronological ages. Results: The normal and advanced bone age groups were comprised of 183 (78.9%) and 49 (21.1%) children, respectively. The prevalence of advanced bone age significantly increased as the percentiles of height, weight, waist circumference, and body mass index (BMI) increased. BMI z-score was higher in the advanced bone age group than in the normal bone age group (2.43±0.52 vs. 2.10±0.46; p<0.001). The levels of insulin (27.80±26.13 μU/mL vs. 18.65±12.33 μU/mL; p=0.034) and homeostatic model assessment-insulin resistance (6.56±6.18 vs. 4.43±2.93; p=0.037) were significantly higher, while high density lipoprotein-cholesterol levels were lower (43.88±9.98 mg/dL vs. 48.95±10.50 mg/dL; p=0.005) in the advanced bone age group compared to those in the normal bone age group, respectively. The prevalence of advanced bone age was higher in obese children with metabolic syndrome than in those without (28.2% vs. 14.7%; p=0.016). The prevalence of advanced bone age was higher in obese children with a more severe degree of NAFLD. Conclusion: Advanced bone age is associated with a severe degree of obesity and its complications.

• Journal of Korean Academy of Nursing
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• v.1 no.1
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• pp.59-63
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• 1970

As a result of inquiry about menarche age, existence or non-existence of menstruation, comparative menarche age by regina groups, and monthly occurrence rate of menarche among 1642 school girls in Kwangju district, we obtained the following conclusion. 1. The menarche age of school girls in Kwangju district was 10-17, and the average age was 14.03$\pm$1.85. 2. According to the percentage of menarche occurrence by the present age. we got a fact that 58.67% had menarche at 13 to 15-year-old school girls. So the tendency is that menarche occurs sooner by degrees. 3. As a result of inquiry about the existence or non-existence of menarche by the present age, 54.54% have not had menarche among 15-year-old school girls. There is one person who have not had it at 18, and none that have not had it at over 19. 4. The menarche age by regional groups shows that menarche occurs at 13.85 in the city and at 14.27 in the country: those inhabited in the city have menarche sooner than those in the country. 5. Monthly rate of menarche occurrence shows that August in the largest number, December the second, January the third, and so on.

• Journal of the Korean Society of School Health
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• v.9 no.2
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• pp.161-170
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• 1996

This research was performed to screen eye health status for pre-school children (4~5 age) and establish as eye health checking system m community health center. This data was collected from 1st February, 1995 to 31st October, 1995. To screen the state of their vision, the Developed Visuual Test (D.V.T) was used for pre-school children. This is used at home by their parents and then it is also used among the kindergarten health team at Jung-gu health center in Seoul. This was done with the and of Randot and Han Choun Souk tests. The total number of children who were tested was 1441. Among the children, children aged 5 were 707, and those aged 4 were 734. The results of this study were as follows; * Description of the health status for the pre-school children. 1. The rate of children average vision in both eyes, whose was below 05 by Han Choun Souk are 7.6% (age 4) and 4.8% (age 5). 2. Only 20 4% (age 5) and 30 8% (age 4) of the pre-school children had been tested through the ophthalmic department. 3. The children with a level below 05 (Han Choun Souk test) had been tested only 43% (age 4), and 12% (age 5) 4. There was no particular difficulty in understanding the D.Y.T: 13.9% (age 4), 11.6% (age 5) of the tested children had eye problems. 5. 231 cases were trichiasis, entropin, strabismus, and amblyopia. * The different visual tests. The results of the visual tests between the two groups (parents and health teams) are similar and it shows that parents can easily test at home. * Delivery system of the D.V.T questionnaire The way children's parents received the D.V.T questionnaire were carried out by two ways By mall from the community health center. Send through the institution, for example the kindergarten school The receipt rate of this D.V.T questionnaire sent through the institution was higher than sent by mall.

• Journal of Oral Medicine and Pain
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• v.40 no.4
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• pp.146-154
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• 2015

Purpose: The purpose of present study was to develop a method for assessing the chronological age of Korean adults based on the relationship between age and size of pulp cavity using dental radiographs of mandibular first molars. Methods: A total of 325 dental radiographs of Korean adults with known age and gender were selected for the study (199 males and 126 females) which were taken in the period between January 2009 and June 2014 at the Pusan National University Dental Hospital. The measurements were carried out on both orthopantomographs (OPGs) and intraoral periapical radiographs of mandibular first molar and the following ratios were calculated: pulp chamber floor height ratio (F/L), pulp chamber ceiling height ratio (R/L), and pulp chamber depth ratio (D/L). Results: The ratios of measurements on intraoral periapical images of mandible first molar generally produce more reliable data than the measurements on OPGs. The pulp chamber floor height ratio and pulp chamber thickness ratio showed significant correlation with age, whereas the pulp chamber ceiling height ratios showed weak correlation with age. It was found that the best correlations between the ratios and age were found for pulp chamber thickness ratios (r=-0.731 to -0.751). The multiple regression models were derived using 3 ratios that were significantly correlated with age. The determination coefficients ($R^2$) of the models ranged from 0.556 to 0.596. Conclusions: Our results indicate that the pulp chamber thickness and pulp chamber floor height in mandibular first molar are an age-dependent variable in adults which can be used to estimate age with reasonable accuracy. The higher image quality of dental radiographs will probably narrow the age estimation error and improve dental age estimation.

• Child Health Nursing Research
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• v.11 no.2
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• pp.167-178
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• 2005

Purpose: The purpose of this study was to describe quality of life (QOL) in Korean school-age children by identifying dimensions and attributes of QOL from the child's point of view. Method: In-depth interviews with focus questions were used for the study. Twelve children, aged 10 to 13 years, were recruited from Seoul and rural areas. The interviews were audio-taped and transcribed before content analysis. The data were analyzed for themes and attributes. The researchers read the data together and discussed their conclusions until a consensus was reached. Results: Eight dimensions, 57 subdimensions and 101atttributes were identified for QOL in school-age children. The eight dimensions of QOL were physical, social, emotional, learning, leisure, family, self-value, and material aspects. Conclusion: The study results can be utilized in developing reliable instruments to measure quality of life specific to school-age children. It is proposed that a consistent and unified policy should be established by school, family, and community for the purpose of improving the QOL of school-age children.

• Neonatal Medicine
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• v.25 no.4
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• pp.178-185
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• 2018

Purpose: We aim to assess the Bayley Scales of Infant and Toddler Development, third edition (Bayley-III), Adaptive Behavior (AB) and Social-Emotional (SE) scales at 18 to 24 months of corrected age (CA) to examine their associations with school-age cognitive and behavioral outcomes in children born preterm. Methods: Eighty-eight infants born with a very low birth weight (<1,500 g) or a gestational age of less than 32 weeks who were admitted to the neonatal intensive care unit from 2008 to 2009 were included. Of the 88 children who completed school-age tests at 6 to 8 years of age, 37 were assessed using the Bayley-III, including the AB and SE scales, at 18 to 24 months of CA. Correlation, cross-tabulation, and receiver operating characteristic analyses were performed to assess the longitudinal associations. Results: A significant association was observed between communication scores on the Bayley-III AB scale at 18 to 24 months of CA and the Korean version of the Wechsler Intelligence Scale for Children (K-WISC) full-scale intelligence quotient (FSIQ) at school age (r=0.531). The total behavior problem scores of the Korean version of the Child Behavior Checklist (K-CBCL) at school age were significantly negatively related to the Bayley-III SE and AB scales but not to the cognitive, language, or motor scales. Conclusion: Our findings encourage AB and SE assessments during the toddler stage and have important implications for the early identification of children in need of intervention and the establishment of guidelines for follow-up with high-risk infants.

• Clinical and Experimental Reproductive Medicine
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• v.46 no.1
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• pp.22-29
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• 2019

Objective: As paternal age increases, the quality of sperm decreases due to increased DNA fragmentation and aneuploidy. Higher levels of structural chromosomal aberrations in the gametes ultimately decrease both the morphologic quality of embryos and the pregnancy rate. In this study, we investigated whether paternal age affected the euploidy rate. Methods: This study was performed using the medical records of patients who underwent in vitro fertilization (IVF) procedures with preimplantation genetic screening (PGS) from January 2016 to August 2017 at a single center. Based on their morphological grade, embryos were categorized as good- or poor-quality blastocysts. The effects of paternal age were elucidated by adjusting for maternal age. Results: Among the 571 total blastocysts, 219 euploid blastocysts were analyzed by PGS (38.4%). When the study population was divided into four groups according to both maternal and paternal age, significant differences were only noted between groups that differed by maternal age (group 1 vs. 3, p= 0.031; group 2 vs. 4, p= 0.027). Further analysis revealed no significant differences in the euploidy rate among the groups according to the morphological grade of the embryos. Conclusion: Paternal age did not have a significant impact on euploidy rates when PGS was performed. An additional study with a larger sample size is needed to clarify the effects of advanced paternal age on IVF outcomes.