• Electronics and Telecommunications Trends
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• v.14 no.5 s.59
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• pp.1-15
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• 1999

본 고에서는 B-ISDN 망의 NNI 프로토콜로 B-ISUP과 PNNI가 동시에 수용되는 공중 망에서 ITU-T E.164 주소체계 사용에 따른 장.단점을 살펴보고, 공중망 교환기에 ATM Forum 신호 권고안을 수용하면서 지금까지 주로 사설 ATM 망에서 사용되어 온 AESA DCC, ICD/IOTA 주소체계를 공중망에 수용하기 위한 검토사항, 필요성, 수용방법을 기술하고, 국내에서 구축중인 B-ISDN 망의 AESA DCC, ICD 주소형태(address format) 및 각 주소계위(address hierarchy)의 의미, 이를 지원하기 위한 공중망 교환기의 기능에 대하여 기술하고자 한다.

• Cement
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• s.143
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• pp.34-37
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• 1996

• Cement
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• s.145
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• pp.36-38
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• 1996

• The Journal of Korean Society of Virology
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• v.26 no.2
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• pp.259-267
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• 1996

In order to evaluate the effect of viral load on the prognosis of human immunodeficiency virus-1 (HIV-1)-infected individuals, immune complex dissociated (ICD) serum p24 antigen (p24) by acid treatment was retrospectively measured for 50 HIV-infected patients for 60 months. Among them, 27 patients were p24 positive (p24+) above 25pg/ml for $40.4{\pm}12$ months and 23 patients were negative (p24-). Follow-up periods from HIV diagnosis were $63.0{\pm}19$ months (range; 40-112) for the p24+ and $68.4{\pm}19$ months (range; 38-106) for the p24-, respectively (P>0.05)Mean CD4+T cell counts in the p24+ group decreased from $473{\pm}$277/ul (median;373) to $157{\pm}150/ul$ (median; 111) for $60{\pm}16$ months (5.3/month P280/ul (median; 476) to $432{\pm}285/ul$ (median;382) for $63{\pm}19$ months (2.5/month, P<0.01). From CD4+T cell count >200/ul, the patient who progressed to AIDS of <200/ul were 13 of 23 (56%) in the p24+ and 4 of 22 (18%) in p24-, respectively (p<0.01). And the number of death in two groups were 6 (22%) and 1 (4%), respectively (p<0.01). Presumed survival in two groups were about 12 and 24.5 years. These data suggest that viral load itself be very important for the prognosis of HIV-infected patients.

• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.273-279
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• 2017

Purpose: This study was conducted to identify factors associated with cataract and age-related macular degeneration in elders. Methods: In total, 341,588 men(44.18%,) and women(61.887%), aged over 60, were recruited from Korean National Health Insurance Service-Senior(2002-2013). We also analysed the factors which determine the prevalence of contract (ICD-10: H25) and age-related macular degeneration(ICD-10: H353) using Cox proportional hazard regression model Results: The subjects who were women, in older age, the group of higher income level, with hypertension, with heart disease, and with diabetes, the prevalence of both contract and age-related macular were increased(p<0.0001). Conclusion: The prevalence of contract and age-related macular degeneration were higher in old age of Korean who has chronic diseases such as hypertension, heart disease, and diabetes. The management of chronic diseases are essentially required in elderly for more healthy eye in aged society.

• Journal of Cancer Prevention
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• v.23 no.4
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• pp.183-190
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• 2018

Background: As the number of big-cohort studies increases, validation becomes increasingly more important. We aimed to validate administrative database categorized as colorectal cancer (CRC) by the International Classification of Disease (ICD) 10th code. Methods: Big-cohort was collected from Clinical Data Warehouse using ICD 10th codes from May 1, 2003 to November 30, 2016 at Seoul National University Bundang Hospital. The patients in the study group had been diagnosed with cancer and were recorded in the ICD 10th code of CRC by the National Health Insurance Service. Subjects with codes of inflammatory bowel disease or tuberculosis colitis were selected for the control group. For the accuracy of registered CRC codes (C18-21), the chart, imaging results, and pathologic findings were examined by two reviewers. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for CRC were calculated. Results: A total of 6,780 subjects with CRC and 1,899 control subjects were enrolled. Of these patients, 22 subjects did not have evidence of CRC by colonoscopy, computed tomography, magnetic resonance imaging, or positron emission tomography. The sensitivity and specificity of hospitalization data for identifying CRC were 100.00% and 98.86%, respectively. PPV and NPV were 99.68% and 100.00%, respectively. Conclusions: The big-cohort database using the ICD 10th code for CRC appears to be accurate.

• Journal of Convergence for Information Technology
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• v.9 no.9
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• pp.195-200
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• 2019

The purpose of this study is to analyze the characteristics of National Health Insurance claim data and to construct a pilot medical episode data considering it. In this study, the trends of respiratory disease (ICD10: J00-J99) cardiovascular disease (ICD10: I00-I99) from the day of onset of treatment to re-admission after admission were confirmed in Seoul, and the largest decrease was observed when the no-treatment period was 0 day. The data reduction rate when the no-treatment period is 0 day is judged to be due to the monthly separation claim of the health insurance claim data. Also, the result that there is a tendency of monthly separation request according to the type of medical treatment. Through this study, we constructed epidemic data for the pilot medical treatment considering the characteristics of the claim data of health insurance, and based on this, it can be used as a data processing method for calculating basic epidemiological information.

• Korean Circulation Journal
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• v.53 no.9
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• pp.621-631
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• 2023

Background and Objectives: The morphology-voltage-P-wave duration (MVP) electrocardiography (ECG) risk score is a newly defined scoring system that has recently been used for atrial fibrillation (AF) prediction. The aim of this study was to evaluate the ability of the MVP ECG risk score to predict AF in patients with an implantable cardioverter defibrillator (ICD) and heart failure with reduced ejection fraction in long-term follow-up. Methods: The study used a single-center, and retrospective design. The study included 328 patients who underwent ICD implantation in our hospital between January 2010 and April 2021, diagnosed with heart failure. The patients were divided into low, intermediate and high-risk categories according to the MVP ECG risk scores. The long-term development of atrial fibrillation was compared among these 3 groups. Results: The low-risk group included 191 patients, the intermediate-risk group 114 patients, and the high-risk group 23 patients. The long-term AF development rate was 12.0% in the low-risk group, 21.9% in the intermediate risk group, and 78.3% in the high-risk group. Patients in the high-risk group were found to have 5.2 times higher rates of long-term AF occurrence compared to low-risk group. Conclusions: The MVP ECG risk score, which is an inexpensive, simple and easily accessible tool, was found to be a significant predictor of the development of AF in the long-term follow-up of patients with an ICD with heart failure with reduced ejection fraction. This risk score may be used to identify patients who require close follow-up for development and management of AF.

• The Journal of Internal Korean Medicine
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• v.31 no.3
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• pp.688-692
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• 2010

The aim of this study was to report eight patients with dizziness, diagnosed as Qi-dizziness. The cause of Qi-dizziness is seven emotions(七情), and seven emotions induce liver qi depression(肝氣鬱結), spleen deficiency(肝脾不和) and dual deficiency of the heart-spleen(心脾兩虛). Guibisoyo-san($Gu\={i}p\'{\i}xi\={a}oy\'{a}o-s\`{a}n$) modified formula, which can treat the above diagnosis, was given to patients three times a day. To evaluate the therapeutic effect, visual analog scale(VAS) and inconvenience degree (ICD) were examined. After treatment, the VAS score decreased 7.37 points on average and ICD score decreased 1.62 points on average in patients with both peripheral vestibular dizziness and nonvestibular dizziness. This study shows that herbal therapy by traditional Korean medicine has considerable effects on dizziness, regardless of the etiological cause.

• Journal of Korea Game Society
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• v.20 no.1
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• pp.107-120
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• 2020

Since the revision of the ICD-11 of the WHO, the level of social discourse on internet game use disorders has been increasing. However, existing studies have mixed terms and causal relationships with game use disorder or game addiction. This study was conducted with high school students aged 16 to 18, focusing on internet game addiction. As a result of the analysis, the greater the obstacles to daily life and self-regulation, the higher the risk of falling into internet game addiction. This study has a significance in reestablishing the causal relationship of Internet game addiction.