• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제27권2호
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• pp.139-145
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• 2016

Objectives: As a preliminary study on the prevalence of mental disorders in Korean children and adolescents, we investigated the diagnosis distribution of mental disorders in people under 19 years of age using the health insurance data. Methods: From the 2011 health insurance data of 1,375,842 people, the data of 286,465 people under 19 years old were extracted. Among them, we selected 10,778 with psychiatric diagnoses; male 6,453 (59.9%) and female 4,325 (40.1%). The frequency of psychiatric diagnoses in the males was 10,140 (62.7%) cases, which was significantly higher than that (6,031; 37.3%) in the females. We categorized the groups into 3 year intervals. Results: In the males under 3 years old, F80 was the most prevalent diagnosis, followed by F98. F90 and F41 were the most prevalent in the 4-15 and above 16 years old groups, respectively. In the females, F98 was the most prevalent in the children up to 3 years old, while F80 was the second most prevalent. In the 4-6 years of age group, F98 was the most prevalent, followed by F93. F90 and F41 were predominant in the 7-12 and above 12 years old groups, respectively. Conclusion: In the analysis of the frequency of diagnosis of mental disorders in the population under 19 years old, there were significant differences in the distribution based on age and gender.

• 한국농촌건축학회논문집
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• 제23권2호
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• pp.33-44
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• 2021

In this study, we investigated and analyzed changes about the landscape consciousness of Yeongam-gun residents, in chronological order. As a result, the landscape consciousness of 10 years ago and the present has not changed significantly. Also, the residents' consciousness of the Yeongam-gun landscape image has not changed from 10 years ago, and we recognize that it is necessary to preserve and form the natural landscape. As for the problem of urban landscape, the needs of residents for the development of urban infrastructure facilities and the development of tourist spots are higher than 10 years ago, and the problem of each landscape element is found as the formation and management of a road environment. It was found that the degree of satisfaction with the Yeongam landscape is generally below average, compared to 10 years ago. Residents' willingness to participate in landscape projects has changed as the number of respondents who do not want to participate has increased compared to 10 years ago, and the project method must be promoted by residents / administration / experts as one. The awareness is judged as administrative agencies need to change from the role of regulation-oriented in the past to the role of resident support and cooperation.

• 한국약용작물학회지
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• 제20권3호
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• pp.195-201
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• 2012

The management and the use of major mineral nutriments such as nitrogen, phosphorous, and potassium, etc have been practiced and improved in various cultivating methods of Panax ginseng C. A. Meyer. The purposes of this study were to examine the content of major mineral nutrients on different ginseng aging from 1 to 6 years old, to analyze their uptake and utilization in tissues of ginseng, and to find out their proper managing techniques throughout the cultivation of ginseng. In case of the leaves, the N content was not clearly different from 1 to 6 years old, while the content of P and K was generally decreased throughout the cultivating years. In case of the roots, the content of N and K was gradually decreased from 1 to 6 years old, while the P content was increased until 3 years old, decreased at 4 years old, increased again at 5 years old, and decreased again at 6 years old. The uptake amount of N was increased in root of ginseng from 1 to 6 years old, 0.02 to 2.79kg/10a based on dry weight, respectively. Other minerals of P, K, Ca, and Mg were increased for the cultivating year. Comparing the uptake amounts of N, P, K with different cultivating year, they were the highest uptake amount at 4 years old and then were decreased. The management techniques of major mineral in cultivation of ginseng would be studied and evaluated more in order to have better ginseng production.

• The Journal of Advanced Prosthodontics
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• 제14권3호
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• pp.133-142
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• 2022

PURPOSE. A large number of studies have suggested the practicability and predictability of immediate implant function, but few studies have reported marginal bone level changes during sequential loading periods. The purpose of this study was to evaluate the marginal bone remodeling of immediately loaded self-tapping implants both at each time point and during each loading period between two time points. MATERIALS AND METHODS. The patients included in this retrospective study were treated with immediately loaded NobelSpeedy Replace implants between August 2008 and July 2009. Differences in the marginal bone level (MBL) at each time point and the marginal bone level change (ΔMBL) between two time points were analyzed with Bonferroni correction (P < .05). RESULTS. Overall, 24 patients (mean age, 47.3 ± 12.8 years) with 42 immediately loaded implants and a median follow-up of 6.5 years (IQR, 67.8 months) were included. The cumulative survival rate after 10 - 12 years was 95.2%. Continuous but slow marginal bone loss was observed during long-term follow-up. MBL at both 7.5 years and 11 years was significantly lower than that at loading, 6 months, 2 years and 4 years (P < .05). No bone loss difference was found in any period before 4 years of follow up (P > .05). The loading period of 4 years to 7.5 years showed the largest ΔMBL compared to those of other time periods (P < .05). CONCLUSION. Slight bone loss occurred continuously, and more radical changes of marginal bone can be observed during the period of 4-7.5 years. Thus, long-term effective follow-up of immediately loaded implants is needed.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제18권1호
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• pp.10-16
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• 2015

Purpose: The aim of this study is to investigate the changing prevalence rate of Helicobacter pylori infection in children, of different age groups, with recurrent abdominal pain over a 10-year period. Methods: Children with recurrent abdominal pain who visited the pediatric outpatient clinic at university hospital were screened for H. pylori. Children were divided into 3 age categories of 4-5, 6-11, and 12-16 years. To study the changes in the annual prevalence rates of H. pylori infection, the study period was divided into 3 time periods: 2004-2007, 2008-2010, and 2011-2014. Urea breath test was performed for all children aged 4-16 years, with a cut-off value of 4.0‰ for children aged ${\geq}6$ years and 7‰ for children aged <6 years. Results: A total of 2,530 children (1,191 boys) with a mean age of $10.0{\pm}3.0years$ (range, 4.0-16.9 years) were included in the study. The total prevalence of H. pylori infection was 7.4% (187/2,530). The prevalence rate of H. pylori infection in children with recurrent abdominal pain was 8.0% (70/873) in 2004-2007, 7.7% (51/666) in 2008-2010, and 6.7% (66/991) in the 2011-2014. Nevertheless, a significant difference was observed in the prevalence rate between children <12 years old and ${\geq}12$ years of age (p=0.018). Conclusion: The prevalence of H. pylori infection in Korean children with recurrent abdominal pain was 7.4%, showing no significant decrease in the last 11 years; however, the prevalence rate in children <12 years old was significantly lower than that in those ${\geq}12$ years old.

• 한방안이비인후피부과학회지
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• 제8권1호
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• pp.163-176
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• 1995

The cilinical study was done in 340 patients with allergic rhinitis who had been dosed with HYUNG GAE YUN GYO TANG GAMI. The results were summarized as follows 1. Distridution by Sex and Age $64\%\;of\;them\;were\;man,\;and\;36\%$ of them were women(It was common to men than to women) Of those who were attacted(very diverse), $25.0\%$ of them were between 10 and 19 years of age(most frequent), $23.8\%$ were between 30 and 39, $18.2\%$ between 20 and 29, $14.1\%$ between birth and 9, $12.6\%$ between 40 and 49, and $6.2\%$ of them were 50 years and over. 2. Duration $47.6\%$ of them suffered from this disease for 1 to 5 years, $13.8\%$ for 10 years or longer, $24.1\%$ for both 5 to 10 years and $7.4\%$ for 6 months to 1 years, and $6.5\%$ shorter than 6 months. 3. Symptom that appeared to them were nasal obstruction($91.5\%$,top), sneezing($90\%$), rhinorrhagir($77.4\%$), headache ($30.9\%$), itch($26.8\%$), nasal discharge through gullet($15.3\%$), and pharyngitis($15.3\%$). 4. Other diseases that occured with it were sinusitis(most often), Atopic keratoconjunctivitis, allergic dermatitis, asthma, otitis media, tonsillitis, hepertropic rhinitis, nasal polyp, and atropic rhinitis(most unusual). 5. Time and Improvement After 6 months 2 cases($20\%$) were improved excellently, 3 cases($30\%$) considerablely, after 6 months to 1 year 5 case($38.5\%$) considerably, after 1 year to 5 year 10 cases($13\%$) excellently, 20 cases ($26\%$) considerably, after 5 year to 10 years 4 cases($8.7\%$) excellently, 13 cases($28.3\%$) considerable, and after 10 years 2 cases($10\%$) improved excellently, 2 cases($10\%$) considerab. 6. Dosage and Improvemont With 10 papers 6 cases($7.8\%$) were improved excellently, 22 cases($27.8\%$) considerably, with 20 papers 4 cases($10.3\%$) were improved excellently, 6 cases($15.4\%$) considerably, with 30 papers 3 cases($15.8\%$) excellently, 2 ($10.5\%$) considerably, with 40 papers 3 cases($23.1\%$) excellently, 5($38.5\%$) considerably, with 50 papers 1 cases($10\%$) excellently, 4($40\%$) considerably, with 60and 70 papers one cases($33.3\%,\;100\%$) for each was improved considerable, with 80 papers 1 cases($100\%$) excellently, and 90 papers 2 cases($66.6\%$) considerable. 7. Improvement with additional outward application With external application 8 cases($16.6\%$) were improved excellently, 9 cases($18.7\%$) considerably without external application 10 cases($8.4\%$) were improved excellently, 34 cases($28.8\%$) considerably. 8. General Improvement 18 cases($10.8\%$) were improved excellently, 43 cases($25.9\%$) improved considerably, and 40 cases($24.0\%$) improved quite a little.thus has improvement shown in 60.8 per cent of case, and proved its efficacy.

• 대한한방소아과학회지
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• 제27권3호
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• pp.65-73
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• 2013

The subjects were composed of 308 children who visited the department of pediatrics, ${\bigcirc}{\bigcirc}$ korean medicine hospital from January 2010 to May 2013. Results 1. Among 308 patients, there were 188 boys and 120 girls; their ratio was 1.57:1. The age distribution showed that 38.3% were in the age less than 1 years, 38.0% in 1 years, 7.8% in 2 years, 5.2% in 3 years, 3.3% in 4~5 years, 4.5% in 6~10 years, 2.9% in 19~21 years. 2. It was found that 36.7% of the sleep disorder was caused without motivation, 17.2% caused by negligent accidents, 13.9% by traffic accidents, 10.4% by the unfamiliar environment, 8.1% by separation from parents, 7.5% after suffering disease, and 6.2% by irritating sound. 3. The sleep onset insomnia accounts for 17.2% of sleep disorder, sleep maintenance insomnia for 67.5%, poor sleep quality 24.4%, and daytime sleep disorder takes 19.8%. The ratio of sleep onset insomnia in adolescence comprises larger proportion (44.4%) than it of any other age groups. 4. The symptoms complicated with sleep disorder are the respiratory infection which takes 25.3%, being easily startled 18.2%, anorexia 14.6%, soft stools frequency 13.0%, greenish stools 10.7%, and skin rash 10.7%. Conclusions The causes of sleep disorders, changes of sleeping patterns, and complicated diseases show diversity in children and adolescence. Further study of sleep disorders in children and adolescence should be progressed as well.

• Asian Pacific Journal of Cancer Prevention
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• 제13권5호
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• pp.1761-1766
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• 2012

Background: The appropriate interval between negative colonoscopy screenings is uncertain, but the numbers of advanced neoplasms 10 years after a negative result are generally low. We aimed to evaluate the cost-effectiveness of colorectal neoplasm screening and management based on repeat screening colonoscopy every 10 years or single colonoscopy, compared with no screening in the general population. Methods and materials: A state-transition Markov model simulated 100,000 individuals aged 50-80 years accepting repeat screening colonoscopy every 10 years or single colonoscopy, offered to every subject. Colorectal adenomas found during colonoscopy were removed by polypectomy, and the subjects were followed with surveillance every three years. For subjects with a normal result, colonoscopy was resumed within ten years in the repeat screening strategy. In single screening strategy, screening process was terminated. Direct costs such as screening tests, cancer treatment and costs of complications were included. Indirect costs were excluded from the model. The incremental cost-effectiveness ratio was used to evaluate the cost-effectiveness of the different screening strategies. Results: Assuming a first-time compliance rate of 90%, repeat screening colonoscopy and single colonoscopy can reduce the incidence of colorectal cancer by 65.8% and 67.2% respectively. The incremental cost-effectiveness ratio for single colonoscopy (49 Renminbi Yuan [RMB]) was much lower than that for repeat screening colonoscopy (474 RMB). Single colonoscopy was a more cost-effective strategy, which was not sensitive to the compliance rate of colonoscopy and the cost of advanced colorectal cancer. Conclusion: Single colonoscopy is suggested to be the more cost-effective strategy for screening and management of colorectal neoplasms and may be recommended in China clinical practice.

• 상하수도학회지
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• 제30권2호
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• pp.155-165
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• 2016

Pipe Deterioration Prediction (PDP) and Pipe Failure Risk Prediction (PFRP) models were developed in an attempt to predict the deterioration and failure risk in water mains using fuzzy technique and the markov process. These two models were used to determine the priority in repair and replacement, by predicting the deterioration degree, deterioration rate, failure possibility and remaining life in a study sample comprising 32 water mains. From an analysis approach based on conservative risk with a medium policy risk, the remaining life for 30 of the 32 water mains was less than 5 years for 2 mains (7%), 5-10 years for 8 (27%), 10-15 years for 7 (23%), 15-20 years for 5 (17%), 20-25 years for 5 (17%), and 25 years or more for 2 (7%).

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 추계학술대회 논문집 전기물성,응용부문
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• pp.19-21
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• 2003

In this paper, we studied on life-decision of underground cable of live-lines state. As all equipments have been wear, underground cables decided design-life on the whole 30 years because underground cable have been occurred aging as time goes. CV cable has been become about 30 years after installation in the South Korea, is come to a important point of time with estimation about life. Study target cable is 22 kV CV cables in this point of view and installation cable is about 10 years before and behind. Measurement method used dc leakage method of live-lines state that applied voltage of 50V in neutral point and data is analyzing result that is measured during 5 years. In this result, insulation resistance could confirm that change according to season and cause is effect of humidity, seasons and load current. Also, according as data is gone aging, insulation resistance by Weibull distribution could confirm functionally its decrease. As a result, the aging speed of cable that water tree is gone could confirm fastness very. Numerical analysis result, cable that water tree is not gone could confirm that life of cable that has passed 10 years remains about $10{\sim}20$ years.