• Journal of Nutrition and Health
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• v.25 no.5
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• pp.413-418
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• 1992

The prevalence of childhood and adolescents obesity at ages 6 to 17 in Seoul were investigated on 1992. The number of children and adolescents comprised of 3310 boys and 3270 girls. Obesity was defined as weight that exceeded the standard weighter for heigher and sex by more than 20%(relative weight>120%) The results were as follows : 1) The overall prevalence rate of childhood and adolescent obesity was 14.45% The prevalence rate of boys was 15.83% and that of girls was 13.06% on 1992. The overall difference of prevalence rate between boys and girls in significant(p<0.001) 2) The highest peak age is 11 years old. There were two peaks in the prevalence rate of obesity one is from 9 to 11 years old. the other is from 15 to 17 years old. 3) The prevalence rate of overweight that exceeded the standard weight by more than 20% to 29% was 8.62% by more than 30% to 49% was 5.58% and by more than 50% was 0.25% Our study suggests than the prevalence rate of obesity among the children and adolescent in Seoul, Korea is gradually increasing which will affect the future adult population. We feel it is needed further investigation to determine the causes of increasing rate of obesity and early establishment of preventive programs.

• Journal of Preventive Medicine and Public Health
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• v.16 no.1
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• pp.105-112
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• 1983

To characterize the diet and physical exercise patterns of bank personnel for the health maintenance, a questionnaire was administered to all the employess (1,249) of Daegu Bank in June 1983 among whick 78.1% (976) responded. Three quarters of the respondents were between 20 and 34 years old. About 30% of 20-24 years old group were male compared with 73.1% of 25-39 years old group. Major findings of the survey are as follows: 1) The most concerned chronic disease of the respondents were in the order of cancer (27.4%), psychiatric disease (15.1%), hypertension (14.1%), heart disease (13.7%) and tuberculosis (7.9%). 2) For the prevention of adulthood disease and obesity, 53.4% of the respondents were restricting sugar intake; 40.9%, salt: and 35.1%, fat-rich food. 3) Among all the respondents 36.9% were making effort to reduce body weight and 17.7% were trying to gain body weight. 4) The proportion of respondents who practice physical exercise for the health maintenance was 82.9% in male and 62.5% in female.

• Korean Journal of Soil Science and Fertilizer
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• v.12 no.1
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• pp.49-53
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• 1979

Effects of temperature and light intensity on photosynthesis, respiration and chlorophyll content of ginseng (Panax ginseng C. A. Meyer) were as follow. 1. Optimum light intensity for apparent photosynthesis at $25^{\circ}C$ was 25Klux($1.35mgCO_2/dm^2{\cdot}hr$) for two years old ginseng grown in pot and 30Klux($1.94mgCO_2/dm^2{\cdot}hr$) for the six years old palmate cut leaves. Optimum temperature at 25Klux was $15^{\circ}C$ ($1.40mgCO_2$) for the 2 years old and 20 to $22^{\circ}C$ ($2.03mgCO_2$) for the 6 years old. 2. Dark respiration increased almost linearly with the increase of air temperature till $25^{\circ}C$ (2.6times between $16^{\circ}C$ to $25^{\circ}C$ for the 6 years old and 1.8 times between $15^{\circ}C$ to $25^{\circ}C$ for the 2 years old). Dark respiration was 11.1 % of net photosynthesis at $16^{\circ}C$, 17.8% at $25^{\circ}C$ for the 6 years old and 40% at $15^{\circ}C$, 64.7% at $25^{\circ}C$ for 2 years old. 3. Stomata appeared only in abaxial surface (lower epidermis) and stomatal frequency was $37per\;mm^2$. 4. Above results together with other informations quoted here strongly suggest that air temperature is much better criteria than light intensity for the improvement of shading roof material and shading construction. That is to promise maximum light intensity unless air temperature is above $25^{\circ}C$.

• Journal of Preventive Medicine and Public Health
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• v.17 no.1
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• pp.145-172
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• 1984

In order to assess the physical growth pattern of Korean Youth, the authors measured the body height, body weight, chestgirth and sitting height of 40967 persons (24832 males and 16135 females) from primary schools, middle and high schools and colleges of metropolitan (urban) and rural areas, and calculated the mene, standard deviation, standard error and coefficient variance of the body weight chestgirth, sitting height and various pertinent index by body height to demonstrate the standard physical growth and development by body height of sex and age. The following conclusions were obtained. 1. Physical growth and development: Rapid growth of physical growth in terms of body height has been observed among males in the age $7{\sim}15$ and among female $7{\sim}13$. Growth in terms of body height turned out to be slower among students of higher age by both sexes. The age of cross over between to sexes is between 10 to 13 years where upon girls out grows boys. Maximum annual growth were upon girls out grows boys. Maximum annual growth were both of 6.16cm from 8 to 9 years old and 12 to 13 years old for boys and 7.2cm from 8 to 9 and 6.1cm from 9 to 10 for girls. This indicates that girls enter a rapidly growing stage 2 years earlier than boys. Meanwhile, prominent improvement in body height of national students over period of ten year was noticed. 2. The distribution status of body height by age: The distribution status of body height by age were as follows; 7 year of age: boys-30cm range of body height from 104.0cm to 133.9cm, girls-27cm from 104.0cm to 130.9cm 8 year of age: boys-30cm from 116.0 to 145.9cm girls-33cm from 113.0 to 145.9cm 9 year of age: boys-30cm from 116.0 to 145.9cm girls-33cm from 113.0 to 145.9cm 10 year of age: boys-39cm from 116.0 to 154.9cm girls-39cm from 119.0 to 157.9cm 11 year of age: boys-45cm from 119.0 to 163.9cm girls-39cm from 122.0 to 160.9cm 12 year of age: boys-45cm from 125.0 to 169.9cm girls-42cm from 125.0 to 166.9cm 13 year of age: boys-45cm from 128.0 to 172.9cm girls-42cm from 128.0 to 169.9cm 14 year of age: boys-48cm from 131.0 to 178.9cm girls-36cm from 134.0 to 169.9cm 15 year of age: boys-42cm from 137.0 to 181.9cm girls-33cm from 137.0 to 169.9cm 16 year of age: boys-39cm from 146.0 to 184.9cm girls-30cm from 143.0 to 172.9cm 17 year of age: boys-39cm from 146.0 to 184.9cm girls-27cm from 143.0 to 169.9cm 18 year of age: boys-36cm from 152.0 to 187.9cm girls-27cm from 146.0 to 172.9cm 19 year of age: boys-30cm from 155.0 to 184.9cm girls-24cm from 146.0 to 169.9cm 20 year of age: boys-24cm from 158.0 to 181.9cm girls-l8cm from 149.0 to 166.9cm 3. Standard values of body weight, chest-girth and sitting height by body height of age were found all age groups from 7 to 20 years old and listed in tables from3-a to 16-a. 4. Standard values of relative body weight, relative chestgirth and relative sitting height by body height of age were found all age groups from 7 to 20 years old and listed in tables from 3-b to 16-b. 5. Standard values of physical and nutritional indices (Rohrer index, Kaup index, Vervaeck index and Pelidisi index) by body height of age were found all age groups from 7 to 20 years old and listed in tables from 3-c to 16-c.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.20 no.3
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• pp.169-180
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• 2007

Objective : This study was to explore the change of new outpatients in ophthalmology, otolaryngology, dermatology. Methods : We did stastical analysis about 4638 new outpatients who had visited the department of ophthalmology, otolaryngology, dermatology in Kyunghee oriental medicine center from January 1, 2004 to December 31, 2006 and had ophthalmologic, otologic, rhinologic, laryngologic and dermatologic diseases. Results : The results were as follows. 1. Distribution of ophthalmology, otology, rhinology, laryngology and dermatology classification in new outpatients was 44.74% in dermatology the most, 26.50% in rhinology, 14.45% in otology, 8.78% in ophthalmology, 5.54% in laryngology. In all classifications except ophthalmology, outpatients increased, but the proportion of outpatients increased the most in dermatology. 2. The proportion of the new outpatients in ophthalmology was 20.15% in 51-60 years old the most. And 36.61% in dry eye the most, next 27.03% in visual disorder, 10.07% in strabismus. The proportion of the new outpatients in ophthalmology in strabismus decreased by 43.93 percent point but in dry eye increased by 32.17 percent point. 3. The proportion of the new outpatients in otology was 24.94% in 61+ years old the most. And 64.03% in tinnitus, hearing loss the most, next 17.46% in vertigo, dizziness. By 17.36 percent point, it in tinnitus, hearing loss decreased. But in vertigo, dizziness increased by 14.91 percent point. 4. The proportion of the new outpatients in rhinology was 40.93% in 0-10 years old the most. And it increased by 20.08 percent point. 69.30% in rhinitis the most but it decreased by 17.70 percent point. But 32.59% in sinusitis, that means it increased by 14.41 percent point. 5. The proportion of the new outpatients in laryngology was 68.09% in female, 23.35% in 51-60 years old the most. And it was 29.96% in laryngopharyngitis, 19.07% in stomatitis, 14.40% in the diseases of tongue. 6. The proportion of the new outpatients in dermatology was 37.21% in 21-30 years old the most.And it was 22.93% in atopic dermatitis the most, next 14.77% in urticaria. That means it increased by 8.19 percent point. But the proportion of the new outpatients in dermatology decreaed in acne, pruritus. Conclusions : We could know that there had been many changes of new outpatients in ophthalmology, otolaryngology, dermatology

• Proceedings of the KOSOMBE Conference
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• v.1993 no.11
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• pp.163-166
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• 1993

It has been shown that some of physiological systems have nonlinear dynamics. The evidences of these nonlinear behaviors make us analyze physiological systems in the new viewpoint. And, nonlinear dynamics can be represented by chaotic behaviors, which is studied by several methods - correlation dimension, return map, power spectrum analysis, etc. This study is on the analysis of nonlinear characteristics of ECG. Data have been acquired from the 20 children (10 - 13 years old). and 30 students (20 -24 years old). We have calculated parameters HR, PR, VAT, TD, TRD from data. and estimated correlation dimension, return map, power spectrum. Results show the nonlinear characteristics of ECG.

• Journal of Biomedical Engineering Research
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• v.15 no.2
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• pp.151-158
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• 1994

It has been shown that many of physiological systems have nonlinear dynamics. The evidences of these nonlinear behaviors make us analyze physiological systems in the new viewpoint. And, some of these nonlinear dynamics can be represented by chaotic behaviors, which is studied by several methods-correlation dimension, return map, power spectrum analysis, etc. This study is on the analysis of nonlinear characteristics of ECG. After data have been acquired from 20 children (10-13 years old), and 30 students (20-24 years old). We have calculated parameters HR, PR, VAT, TD, TRD, TPD from data, and estimated correlation dimension, return map, power spectrum, time series. Results show the nonlinear and chaotic characteristics of ECG.

• Journal of dental hygiene science
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• v.22 no.2
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• pp.90-98
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• 2022

Background: Integrated management of general, mental, and oral health is necessary to improve an individual's quality of life. This study aimed to identify the effects of mental and oral health behaviors on metabolic syndrome. Methods: A total of 4,227 Korean adults aged 20 years or older were selected as study subjects using raw data from the first year (2019) of the 8th period of the Korea National Health and Nutrition Examination Survey (KNHANES). A complex sample chi-square test and a complex sample logistic regression analysis were performed using the PASW Statistics ver. 18.0 program. Results: The effect on metabolic syndrome was significantly higher in male than in 1.833 times in male, 2.914 times in 30~49 years old, and 3.855 times in 50~64 years old, and 3.929 times in people over 65 years old compared to 20~29 years old, and compared to those with a college degree or higher, those with a middle school degree or lower are 2.116 times, those with lower income levels are 1.507 times higher, those with middle-lower are 1.359 times higher, those with middle-high are 1.401 times. Compared to non-smokers, smokers were 1.570 times higher than non-smokers and compared to those without speech problem and chewing difficulty, they were 1.717 times and 1.397 times higher, respectively and 1.973 times higher in those with 0~1 brushing times per day. Mental health did not affect prevalence of metabolic syndrome. Conclusion: It is necessary to improve maintain a healthy lifestyle to lower the risk of metabolic syndrome. It is necessary to establish effective dental hygiene customized education and an efficient health management system at the national level that can induce improvement of oral health behavior for the prevention and management of metabolic syndrome.

• Journal of Oral Medicine and Pain
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• v.33 no.2
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• pp.167-176
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• 2008

We analyzed 121 age estimation clients who had visited oral medicine clinic, Chonbuk National University Hospital, from January 2000 to December 2007 to evaluate its characters in Jeonllabuk-do. The obtained results were as follows : 1. There was distinct difference in sex distribution(Male : 58.7%, Female : 41.3%) and more than half percent(55.4%) was over 50's. 2. The difference between registered and alleged age was the most in more than 5 years, and most of them were over 50's. 3. There were more clients who wanted to increase their age than to decrease and was no prominent difference in sex. Age estimation clients who wanted to decrease their age were predominant under 10 years old and in 20's, and those wanted to increase were predominant in 10's and over 30's. 4. The most reasons to correct age were related to welfare benefit. The purpose of age estimation was different according to each age groups; welfare benefit was the most over 50's, occupation in 40's and 50's, friendship in 30's and 40's, sibling-related in 50's, employment in 10's and 20's. 5. Age was estimated by the attrition of permanent tooth and pulp/tooth ratio from 20 years, root apex closure for 10's and calcification of permanent tooth under 10 years old. In cases that were difficult to estimate by use of the attrition of permanent tooth and pulp/tooth ratio, age was estimated by missing time of permanent tooth and the change of mandibular angle with age. 6. The estimated ages were close to alleged age in 77.7% of clients but the rest(22.3%) was close to registered age.

• Journal of Digital Convergence
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• v.16 no.2
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• pp.261-267
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• 2018

This investigated 205 dental personnel in Daegu and Gyeongsangbuk-do to find out the effects of Dental Hygienist(Nurse's Aide)'s coaching leadership on job satisfaction, motivational self-concept and quality of life. the entire average of coaching leadership was 2.67 On 5 point scale, development coaching 2.61, relationship coaching 2.61. "my boss fully provides me with training opportunities for my development' had the lowest 2.50. As for coaching leadership according to general characteristics, had the highest average those aged of 20-25years old, work experience of 1-5years, single, salary less than 20 million, female immediate superior, immediate superior aged 20-30years old, position of immediate superior is team head, senior dental hygienists(p<.05). The three criteria had positive correlation with coaching leadership(p<.05). Therefore, Right coaching leadership increases job satisfaction, improves motivational self-concept for increasing individual development, raises quality of life.