• 한국환경보건학회지
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• 제30권3호
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• pp.191-206
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• 2004

The present study investigated the hypothesis that a extremely low frequency magnetic field partially suppresses the synthesis of melatonin in a group of 28 primary schoolchildren living nearby and 60 primary schoolchildren aged 12 years living far away from overhead transmission power lines from December 2003 to April 2004 in Seoul, Korea. The mean personal exposure levels of the primary schoolchildren living nearby overhead transmission power line were 0.37 ${\mu}$T, whereas the value for the primary schoolchildren living away from overhead transmission power line 0.05 mT. From simple analyses, the mean melatonin levels in the primary schoolchildren living nearby were lower than away from overhead transmission power line, but not statistically significant differences in the levels of the melatonin (p=0.2421), whereas the statistically significant differences in the levels of the melatonin related to the distance from residence to power line less and more than 100 m by cut-off point (p=0.0139). In multiple linear regression analyses, distance from residence to power line (p=0.0146) and dietary habit about burned meat (p=0.0170) proved to be significant risk factors in the mean nocturnal melatonin levels in the primary schoolchildren. In conclusion, these results demonstrate that urinary levels of nocturnal melatonin are not altered in primary schoolchildren exposed to extremely low frequency magnetic field(ELF-MF) at overhead transmission power line.

• 한국치위생학회지
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• 제17권6호
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• pp.1215-1223
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• 2017

Objectives: The purpose of this study was to investigate the correlation between dietary calcium (Ca) and phosphorus (P) intake with DMFT (Decayed Missing Filled Teeth) among Korean schoolchildren. Methods: Data of 1,529 schoolchildren were derived from the Sixth Korean National Health and Nutrition Examination Survey, which was conducted from 2013 to 2015. Sociodemographic, oral health behavior, and dietary factors were collected as independent variables. The DMFT was used as a dependent variable. The chi-square test and logistic regression analysis were performed to identify the correlation between dental caries and the other variables. Results: Multiple logistic regression analysis showed that DMFT was correlated with sex, age, and daily P intake. Conclusions: Adequate intake of phosphorus may have a positive effect in preventing dental caries in schoolchildren. Therefore education on increasing phosphorus intake, including raised awareness through provision of dietary guidelines, will be needed.

• Parasites, Hosts and Diseases
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• 제54권4호
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• pp.471-476
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• 2016

To know the infection status of helminths in primary schoolchildren of southern parts of Vietnam, we performed an epidemiological study in Krong Pac district, Dak Lak Province, Vietnam. A total of 1,206 stool specimens were collected from ethnic Ede schoolchildren in 4 primary schools in 2015 and examined by the Kato-Katz technique. In addition, stool cultures were done by the Harada-Mori method to obtain hookworm larvae and then to clarify the species of hookworms infected. The results showed that the helminth infection rate was 25.0%, including 2.0% Ascaris lumbricoides, 0.33% Trichuris trichiura, and 22.8% hookworm infections. The average intensity of infection was 102.0 eggs per gram of feces (EPG) for Ascaris, 36.0 EPG for Trichuris, and 218.0 EPG for hookworms. ITS1 gene sequences of the hookworm larvae were identical with those of Necator americanus (100% homology) reported in GenBank. It has been confirmed in this study that the hookworm, N. americanus, is a dominant helminth species infected in primary schoolchildren of a southern part of Vietnam. Public health attention is needed for control of hookworm infections among schoolchildren in surveyed areas of Vietnam.

• Parasites, Hosts and Diseases
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• 제54권3호
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• pp.345-348
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• 2016

Although intestinal protozoans are common etiologies of diarrhea, few studies have been conducted in Myanmar. This study planned to investigate the prevalence of Giardia lamblia, Entamoeba coli, Entamoeba histolytica, and Endolimax nana among schoolchildren and their guardians in suburban areas near Yangon, Myanmar. We performed a cross-sectional survey among schoolchildren and their guardians from 7 primary schools in South Dagon and Hlaing Thar Yar districts, Yangon, Myanmar. Stool samples were observed with a microscope after concentration technique and iodine staining. Total 821 stool samples, including 556 from schoolchildren and 265 from guardians, were examined. The median age was 6 years old for schoolchildren and 36 years old for guardians. A 53.1% of the school children and 14.6 % of the guardians were males. The overall prevalence of each intestinal protozoan species was as follows: 3.4% (28/821) for G. lamblia; 3.5% (29/821) for E. coli; 1.2% (10/821) for E. histoytica, and 3.0% for E. nana. This study showed that intestinal protozoans are common in primary schoolchildren and their guardians in suburban areas near Yangon, Myanmar. Health interventions, such as hand washing education, improvement of sanitation, and establishment of water purification systems are urgently needed in this area.

• Parasites, Hosts and Diseases
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• 제61권1호
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• pp.53-59
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• 2023

Head louse infestation is a significant public health problem across the world, particularly among preschool and primary schoolchildren. This study investigated the trends of head louse infestation in the Republic of Korea over a 9-year period (2011-2019), targeting primary schoolchildren in 3 areas of Seoul, 4 other large cities, and 9 provinces. A survey was administered annually by the health staff of each regional office (n= 16) of the Korea Association of Health Promotion (KAHP). The branch offices of KAHP examined a total of 51,508 primary schoolchildren, comprising 26,532 boys and 24,976 girls. Over the 9-year survey, a total of 1,107 (2.1%) schoolchildren tested positive for adults and/or nits of Pediculus humanus capitis. The prevalence was 2.8% (133/4,727) in 2011-2012 and gradually decreased to 0.8% (49/6,461) in 2019 (P< 0.05). Head lice were found more frequently in girls (3.0%; 746/24,976) than in boys (1.4%; 361/26,532) (P< 0.05). In terms of geographic localities, the highest infestation rate, 4.7% (average prevalence over 9 years), was observed in southern Seoul (Gangnam branch of KAHP), whereas the lowest infestation rate, 0.7%, was seen in Gyeongsang (north and south provinces) and western Seoul. Although the prevalence decreased significantly during the 9-year period, head louse infestation remains a health and hygiene issue among primary schoolchildren in the Republic of Korea. Regular surveys along with health education are needed to further improve children's hair hygiene.

• 지역사회간호학회지
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• 제11권2호
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• pp.526-537
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• 2000

This study was conducted to contribute to the expansion of activity areas for school nurses in the field of health promotion services whose importance are increasing daily. To achieve such goals the researcher proposed that health promotion programs for obesity management in overweight schoolchildren conducted by literature review to apply to school settings. In this program, the principal components developed a behavior modification program and an exercise program, which could be educated and managed by a nursing staff during for 9 weeks, three times per week, 60 minutes each. The program consisted of exercise, health education. health counseling, and a direct nursing care. This kind of approach may support the need of behavior modification programs and exercise programs on a regular base via the social organization, which may mean an intentional change of life style. A comprehensive approach to health promotion services proposed by this research would contribute greatly to the effectiveness of school health services and to promote health in overweight schoolchildren.

• 한국산학기술학회논문지
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• 제12권12호
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• pp.5639-5647
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• 2011

이 연구의 목적은 초등학생의 편견, 다문화적태도가 다문화효능감에 미치는 요인을 분석하여 초등학교 다문화교육의 방향을 모색하는데 있다. 이러한 연구목적을 달성하기 위하여 전라북도 초등학교 학생 416명을 대상으로 질문지를 사용하여 조사를 실시하였다. 연구결과는 첫째, 성별, 학년별 모두 편견, 다문화적태도, 다문화효능감에서 의미있는 차이를 보였다. 둘째, 초등학생들은 편견, 다문화적태도, 다문화효능감에서 통계적으로 유의미한 상관관계가 있는 것으로 나타났다. 셋째, 초등학생의 편견이 다문화적태도 및 다문화효능감에 유의미한 영향을 미치는 것으로 나타났다. 넷째, 초등학생의 다문화적태도가 다문화효능감에 유의미한 영향을 미치는 것으로 나타났다. 본 연구결과로 볼때, 초등학생들의 눈높이에 맞는 다양한 다문화프로그램을 개발·활용하여 지속적인 다문화교육이 체계적으로 이루어져야 하며, 학생들이 다양한 문화를 바라보는 긍정적인 이해와 수용이 뒷받침 될 수 있는 다양한 연구가 진행되어야 할 것으로 사료된다.

• 한국학교ㆍ지역보건교육학회지
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• 제3권
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• pp.15-33
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• 2002

Researchers' common findings is that there are positive or negative effect of alcohol expectancy on drinking behavior. Therefore we would effectively prevent troublesome drinking of the youth and university students by inquiring and controlling critical factors affecting alcohol expectancy. The purposes of this thesis are, first, to empirically test factors affecting the alcohol expectancy level of elementary schoolchild(potential drinker).; second, to suggest the necessity for development of pre-alcohol prevention programs. On the basis of previous research, eighteen factors included in four categories(general characters, environmental characters, alcohol knowledge, drinking experience) affecting alcohol expectancy level were found out. 623 subjects used in this study were drawn from 8 elementary schools in Daegu, Korea. The empirical results suggested that the alcohol expectancy level of elementary schoolchildren was negative in general. And it was proved that 9 factors were significantly correlated with alcohol expectancy level. To put it concretely(see Fig.), (1) It was proved that schoolchildren with bad environment(live in oneself, displeased drinking feeling) rather than good environment(live with parents, nice drinking feeling) for drinking had more negative alcohol expectancy. (2) Korean traditional culture that partakes of sacrificial food and drink have an influence on the first drinking of most elementary schoolchildren. And it was proved that schoolchildren with this drinking experience rather than any other motives had less negative alcohol expectancy. (3) It was proved that schoolchildren adapting themselves rather than being difficult in school life had more negative alcohol expectancy. And the more knowledge about alcohol or drinking schoolchildren had, the more they had negative alcohol expectancy (4) It was proved that schoolchildren having drinking experience or drinking at present rather than having no drinking experience or not-drinking at present had less negative alcohol expectancy. (5) It was proved that schoolchildren having strong drinking intention rather than having weak or no drinking intention in the future had more positive alcohol expectancy. Based on previous results, guideline for development of pre-alcohol prevention programs can be represented: discriminated programs development on educatee, drinking education programs development increasing the power of self-control about alcohol and drinking, social education or continuing education programs development on drinking, open preschool education to substantially prevent drinking or alcoholism etc. The findings, however, should be interpreted with caution, because this study has several limitations in measurement and sampling as follows. First, selection bias because of limited selection of sampling. It is because the subjects are drawn from only 8 elementary schools in Daegu. Second, less refined measurement ; Therefore, it is necessary to develop more detailed measures on alcohol knowledge, alcohol expectancy level especially. Further researches should be suggested and encouraged with more refined methodologies.

• 초등상담연구
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• 제9권2호
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• pp.195-215
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• 2010

본 연구의 목적은 초등학교 중학년의 불안을 포괄적으로 측정할 수 있는 검사를 개발하기 위한 예비연구를 하는 데 있다. 이를 위하여 첫째, 초등학교 중학년 불안의 구성내용이 무엇인지를 알아보고 이를 측정하기 위한 적절한 문항을 구성하여 검사를 개발하고 둘째, 초등학교 중학년용 불안검사 문항이 학생들에게 명확하게 이해가 되는지, 셋째 그 신뢰도와 타당도가 적절한지를 살펴보았다. 이 결과 초등학교 중학년용 불안검사는 초등학생의 일반불안, 대인불안, 학업불안, 시험불안, 발표불안과 관련된 내용을 모두 포함하고 있었으나 하위요인별, 세부영역별로는 차이가 있었으며 신뢰도와 타당도는 적합하여 불안검사를 제작하는데 유용한 자료로 쓰일 수 있음이 확인되었다. 위의 연구 결과를 종합해 볼때 본 연구에서 개발한 검사는 기존의 검사도구의 단점을 보완하여 초등학교 중학년 아동이 겪는 불안의 특성을 밝히고 다양한 요인을 포함하도록 구성하였으며 적용대상을 불안 형성시기이자 가장 큰 불안을 겪는 중학년 아동들로 하향하였다는데 의의가 있다고 할 수 있다. 또한, 중학년 아동 개개인의 불안에 관한 기초선을 측정하여 불안을 효율적으로 대처할 수 있도록 하는 생활지도와 상담에 유용하게 쓰일 것이다.

• 영재교육연구
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• 제20권2호
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• pp.527-546
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• 2010

과학 최상위권 남녀 학생 14명(남 7명, 여 7명)을 최종 선정하여 과학 탐구 문제 해결과정에 따른 성별 특성에 대한 연구를 수행하였다. 연구결과, 남학생이 기초 탐구 능력에서 문제를 더 쉽게 해결하였고 통합 탐구 능력에서는 여학생이 문제를 더 쉽게 해결하였다. 성공하는 경우, 남학생은 기억에 의한 계획 유형과 문두와 답지의 내용을 모두 확실히 아는 풀이 유형 및 답지 중 확실히 알고 있는 유형으로 문제를 푸는 경향이 높았다. 여학생의 경우 문두와 답지를 분석하거나 표, 그래프, 그림을 분석하여 성공하는 경향이 높았다. 여학생이 남학생에 비해 다양한 방법으로 문제 해결을 하는 경향이 있음을 보여주고 있다. 실패하는 경우, 남학생은 즉시 풀이하면서 충분히 이해가 되지 않은 상태에서 답을 구하거나 잘못된 기억으로 해결하다 실패를 하는 경향이 높고 여학생은 잘 못 기억하거나 표, 그림, 그래프를 잘 못 분석한 풀이 유형이 많았다. 이 결과는 과학 탐구 능력 문제 해결에 대한 남녀 학생에 대한 이해를 높일 수 있고 프로그램 개발에 시사점을 제공한다.