• Clinical and Experimental Pediatrics
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• v.63 no.11
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• pp.422-428
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• 2020

In today's world, most children are exposed to various manmade electromagnetic fields (EMFs). EMFs are electromagnetic waves less than 300 GHz. A developing child's brain is vulnerable to electromagnetic radiation; thus, their caregivers' concerns about the health effects of EMFs are increasing. EMF exposure is divided into 2 categories: extremely low frequencies (ELFs; 3-3,000 Hz), involving high-voltage transmission lines and in-house wiring; and radiofrequencies (RFs; 30 kHz to 300 GHz), involving mobile phones, smart devices, base stations, WiFi, and 5G technologies. The biological effects of EMFs on humans include stimulation, thermal, and nonthermal, the latter of which is the least known. Among the various health issues related to EMFs, the most important issue is human carcinogenicity. According to the International Agency for Research on Cancer's (IARC's) evaluation of carcinogenic risks to humans, ELFs and RFs were evaluated as possible human carcinogens (Group 2B). However, the World Health Organization's (WHO's) view of EMFs remains undetermined. This article reviews the current knowledge of EMF exposure on humans, specifically children. EMF exposure sources, biological effects, current WHO and IARC opinions on carcinogenicity, and effects of EMF exposures on children will be discussed. As well-controlled EMF experiments in children are nearly impossible, scientific knowledge should be interpreted objectively. Precautionary approaches are recommended for children until the potential health effects of EMF are confirmed.

• Journal of Preventive Medicine and Public Health
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• v.56 no.3
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• pp.255-263
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• 2023

Objectives: The study investigated the association between indoor air pollution (IAP) and risk factors for acute respiratory infection (ARI) symptoms in children under 5 years of age. Methods: A cross-sectional study was conducted using data derived from Indonesia Demographic and Health Survey in 2017. Binary logistic regression modeling was employed to examine each predictor variable associated with ARI among children under 5 years of age in Indonesia. Results: The study included a total of 4936 households with children. Among children under 5 years old, 7.2% reported ARI symptoms. The presence of ARI symptoms was significantly associated with the type of residence, wealth index, and father's smoking frequency, which were considered the sample's socio-demographic characteristics. In the final model, living in rural areas, having a high wealth index, the father's smoking frequency, and a low education level were all linked to ARI symptoms. Conclusions: The results revealed that households in rural areas had a substantially higher level of reported ARI symptoms among children under 5 years old. Furthermore, the father's smoking frequency and low education level were associated with ARI symptoms.

• Journal of Korean society of Dental Hygiene
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• v.20 no.6
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• pp.963-972
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• 2020

Objectives: This study aimed to check the effect of preschool visiting oral health education programs and provide baseline data for an oral health education program that suggests the necessity of oral health education in children's living places. Methods: The preschool visiting oral health education was conducted with the parents of 3-year-old and 4-year-old children at a preschool in the jurisdiction of the Seoul Metropolitan Office of Education, with teachers observing the education, and oral health educators to examine the effect of the oral health education, the effectiveness of the education, the status of oral health care, and the degree of cooperation for the education. Results: Regarding oral health behaviors after the education program, the attitude toward brushing teeth after food intake increased from 2.86 to 3.17 and thinking of the relationship with dental caries and eating food increased from 2.57 to 2.90. The satisfaction with the children's health education was very high at over 4.9 points in most items. The teachers' interest in children's oral care was 4.26 points, and the degree of their cooperation for education was 4.41 points; 96.4% responded that they were willing to conduct reeducation. Conclusions: Children's oral health education should be conducted steadily and repeatedly.

• Journal of Food Hygiene and Safety
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• v.23 no.3
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• pp.276-283
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• 2008

To provide the research strategy for protection of children's health from hazardous chemical, we reviewed the hazardous chemicals can be exposed through maternity, children's life style and living environment. Recently, diseases related with children's living condition were focused as asthma, atopy, childhood developmental disability, congenital malformations and obesity. Children can be exposed to hazardous chemicals through an ambient air, water, soil, food, toys and other factors such as floor dust. Also children's health was deeply related with a wrong life style and neglectful caring by a lack of knowledge and information of harmful ones at parents and child care center's nursers. According to the previous study, the chemical risk factor of children's health were identified as inorganic arsenic, bisphenol A, 2,4-D, dichlorvos, methylmercury, PCBs, pesticide, phthalates, PFOA/PFOS, vinyl chloride, et al. Domestic studies for identification of causality between children exposure to chemicals and resulted hazardous effects were not implemented. The confirmation of chemical risk factors through simultaneously performing toxicological analysis, human effect study, environmental/human monitoring, and risk assessment is needed for good risk management. And also, inter-agency collaboration and sharing information can support confirming scientific evidence and good decision making.

• The Journal of Korean Academic Society of Nursing Education
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• v.12 no.2
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• pp.257-264
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• 2006

Purpose: The purpose of this study is to identify the effects of visual health promotion program for preschool children. Method: The experimental group participating in the visual health promotion program was 32 preschool children and the control group consisted of 34 preschool children by homogeneous age. The visual health promotion program was based on articles related to childern's visual health promotion and previous education program. Data were collected with 3 questionnaires that modified by the investigator. The data was analyzed by the SPSS win 10.0 program using descriptive statistics, $x^2$ test, t-test. Result: The level of knowledge about visual health promotion of preschool children who participated in the visual health promotion program was significantly higher than preschool children who did not participate(t=.02, P<.001). The level of behavior about visual health promotion of preschool children who participated in the visual health promotion program was significantly higher than preschool children who did not participate(t=.31, P<.001). Conclusion: The visual health promotion program developed in this study is an effective strategy for nursing intervention by increasing knowledge and behavior about visual health promotion of preschool children.

• Journal of environmental and Sanitary engineering
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• v.21 no.2 s.60
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• pp.36-46
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• 2006

The purpose if this study was to investigate mother' oral health management behavior to their children. Two hundreds sixty seven mothers with elementary school students were surveyed among the residents living of Iksan city, Korea. A questionnaire was constructed and administered to the samples. The research focused in the following items: the subjects' socio-demographic factors such as education level and employment and so on; their knowledge of plaque; the leading causes of caries, regular dental examinations; dental treatment; their interest in their children's dental health; the frequency of the subjects examining their children's teeth; non-cariogenic food preparation, etc. Being based in collected data, mothers' oral health management behavior to their children were analyzed according to maternal socio-demographic factor and result were following. There was a difference in the subjects knowledge of dental plaque in accordance with their employment or unemployment and family income. There was no difference in mother's oral health management behavior to their children according to parents' education level, the subjects' age and family income. Most of mother answered the main reason of dental caries was that their children did not toothbrush their teeth regularly and there was a difference in the understanding of the subjects in accordance with the education level of fathers and family income. The subjects had a low understanding of the effect of preventing caries with the help of fluoride. They didn't have enough understanding of water fluoridation. So it is necessary that active campaigns should be launched to enlighten people in relation to the ways of preventing dental caries with fluoride.

• Child Health Nursing Research
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• v.9 no.3
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• pp.294-300
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• 2003

Purpose: The purpose of the study was to investigate the status of visual health behavior of school-age children and to identify the predicting variables of the school-age children's visual health behavior. Method: The subject was 764 children in grades 4 to 6, enrolled in 2 elementary schools located in urban area. The data were analyzed using t-test, ANOVA, correlation analysis, and stepwise multiple regression. Result: The findings were as follows: 1. The mean of the score of the visual health behavior of school-age children was 41.59(SD=7.22) and there was a significant difference according to grade. 2. There were significant correlations between visual health behavior and self-efficacy for visual health behavior (r=.51, p=.000), motivation for visual health(r=.45, p=.000), perceived benefits(r= .34, p=.000), self-concept(r=.32, p=.000), knowledge of visual health(r=.30, p=.000), health perception for vision(r=.16, p=.000), health locus of control(r=.11, p=.002), and perceived barriers(r=.-.12, p=.000). 3. Self-efficacy for visual health behaviors, knowledge of visual health, motivation for visual health, self-concept, health perception for vision, and perceived benefits were identified as predictor variables of the visual health behavior of the school-age children from the stepwise multiple regression analysis. The total percent of variance accounted by these 6 variables were 36.9％. Conclusion: From the result, it is suggested that the development of comprehensive visual health education program including the component of self-efficacy, health motivation and self-concept to promote the visual health of school-age children.

• Korean Parent-Child Health Journal
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• v.7 no.1
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• pp.50-60
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• 2004

The purpose of this study is to determine paternal rearing behavior according to rearing characteristics and demographic characteristics. This study is designed as descriptive survey. This study's subjects are 200 people who live in Daegu, Gyeongbuk, Seoul and Gyeonggido and they have preschool children of 3-6years old. They live with their children together and they are bringing up their children with a spouse, and they agreed with this study. It was measured by the instrument that 3 nursing scholars modified for content validity based on 18 items which developed parental behavior questionnaire of Bigner(l977). The data were analyzed by the SPSS/PC program with descriptive statistics, t-test and ANOVA test. It was used Scheffe' test as post-hoc measurement. As a result of analysis is the following. 1. The results that are measured paternal rearing behavior by mean and standard deviation are that 'activity of play interaction' score was the highest($280{\pm}.59$), and then 'activity of daily living'($2.41{\pm}.58$), and then 'activity of discipline'($2.40{\pm}.93$). The lowest area was 'activity of outhouse'($225{\pm}.85$). As examined paternal rearing behaviors by item, 'express physical affection to children' was the highest and the next items is 'consult with wife about children's rearing problem.'. Item that was shown the lowest score was 'wash children's dress'. 2. Compared paternal rearing behaviors level by demographic characteristics, that showed Significant differences among the fathers job type(F=3.492, p=.005), family monthly income (p=2.011, p=.047), children's number(F=4.641, p=.011). 3. Compared paternal rearing behaviors level by rearing characteristics, that showed significant difference in the satisfaction of marred life (F=3.932, p=.021). In spite of Paternal rearing behavior can influence on children's health and health activity, that is apt to exclude in various family health educational program development and application in nursing field. Therefore, nursing researches about paternal rearing behavior will have to be needed to study in the future.

• Journal of Environmental Health Sciences
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• v.40 no.3
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• pp.178-186
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• 2014

Background: This study was conducted to assess health risks in regard to exposure by children to volatile organic compounds (VOCs) in children's products. Methods: Ten VOCs were measured by head-space gas chromatography in children's products, including toys, oil pastels, sign pens, furniture, ball pools, and playmats. We estimated the average daily dose (ADD) via inhalation during the use of these children's products and calculated hazard quotient (HQ) by dividing ADD by reference dose of VOCs. Results: Among the measured VOCs, five compounds were identified in children's products: benzene, ethylbenzene, styrene, toluene, and xylene. The detection rates of VOCs in toys, ball pools, furniture, playmats, sign pens, and oil pastels were 85%, 100%, 100%, 30%, 100%, and 60%, respectively. The maximum levels of VOCs were 0.18 mg benzene/kg in toys, 5.92 mg toluene/kg in playmats, 10.37 mg ethylbenzene/kg in ball pools, 24.85 mg xylene/kg in toys, and 118.29 mg styrene/kg in ball pools. From exposure levels of VOCs in the children's products HQs were calculated within a range of $5.71{\times}10^{-10}$ to $4.77{\times}10^{-4}$. The HQ of xylene was the highest for children aged 0-6 playing on the playmats. However, the HQ via inhalation exposure to VOCs in individual products did not exceed 1.00. Conclusion: Based on the results, it was concluded that the use of these children's products do not pose health risks to children.

• Korean Journal of Child Studies
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• v.33 no.1
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• pp.1-21
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• 2012

The purpose of this study was (1) to examine the impact of chronic diseases and emotional-behavioral problems on school-age children's self-perceived QOL, and (2) to investigate what factors were related to the QOL of children. Participants were 972 Korean 4th, 5th, & 6th grade students and 47 teachers. Children completed a questionnaire to evaluate their self-perceived well-being and subjective health. Also they reported their height/weight and physical health state indicating whether they have chronic diseases or not. Teachers reported each child's psychosocial health problems and also reported whether the child has chronic diseases or not. Major findings were as follows : 1. Physical and psychosocial health status had significant impact on school-age children's QOL. Moreover, physical and psychosocial health status were interrelated. 2. Presence of physical and psychosocial problems contributed to substantial declines in self-perceived QOL of school-age children. Children who have chronic diseases and emotional-behavioral problems reported significantly lower QOL compared with children in a normal state. 3. Peer relationship was found to be the significant factor that contribute to the QOL of all children.