• Journal of Trauma and Injury
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• 제19권1호
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• pp.74-80
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• 2006

Purpose: For prevention and suitable administration, the effect of age on the severity of injuries in traffic accidents should be considered when evaluating a patient, but there have not been enough epidemiological studies that evaluate the age factor in traffic accidents. For that reason, we investigated old-aged patients who were involved in traffic accidents (65 years old or more) and who were admitted to the emergency department of a college hospital in an urban city of Korea. Methods: We collected data from traffic-accident patients who came to the emergency room of a university hospital in Seoul from Jan.1, 2004 to Dec.31, 2005. We compared their abilities to ambulate and the RTSs (Revised trauma scores) by using a LSD (least significant difference), linear regression. Results: A total of 1460 patients were included. The mean RTS of all traffic-accident patients was $7.77{\pm}0.280$. The scores for drivers and passengers, motor-cycle drivers and passengers, bicycle drivers and passengers, and pedestrians were $7.79{\pm}0.21$, $7.78{\pm}0.22$, $7.54{\pm}0.25$, $7.77{\pm}0.20$, and $7.80{\pm}0.21$ respectively (p=0.000). There was no statistically significant difference between the RTS of patients over 65 years and that of other patients. In a regression analysis, the number of patients over 45 ages who were able to ambulate was lower than that of younger people, independently of other influencing factors (B=-0.330, R-square = 0.243, p=0.000). Conclusion: We expected that RTS of old age group more than 65 years old will significantly lower than that of others, but there was no statistically significant difference.

• Journal of Korean Neurosurgical Society
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• 제40권5호
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• pp.357-362
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• 2006

Objective : The incidence of aneurysmal subarachnoid hemorrhage has been increasing. At the same time, surgical results for elderly patients are unsatisfactory and no guidelines of treatment are available. We carried out a study comparing variable factors and surgical results between young and old age groups to find ways to improve prognosis. Methods : A retrospective study was carried out on 754 patients who were operated on between 1990 and 2004 by the same surgeon in our hospital. The patients were divided into seven groups according to age : 93 patients below 40 years of age [Group I], 419 patients aged $40{\sim}59$ [Group II], 115 patients aged $60{\sim}64$ [Group III], 82 patients aged $65{\sim}69$ [Group IV], 28 patients aged $70{\sim}74$ [Group V], 12 patients aged $75{\sim}79$ [Group VI] and 5 patients over the age of 80 [Group VII]. We then checked their medical history, Fisher's grade, Hunt-Hess grade, postoperative complications, and Glasgow Outcome Scale. Results : Age was not a statistically significant factor among patients below 70 years of age [P $value{\ge}0.05$]. But for those aged 70 and older, the age factor had a statistical value [P $value{\le}0.001$]. In addition, there was a close correlation between Hunt-Hess grade IV and V patients, and those with vasospasm, and hydrocephalus after surgery, with poor prognosis in elderly patients as well as young patients [P $value{\le}0.001$]. Conclusion : Advanced age [under the age of 70] dose not precluded adequate surgical treatment in patient with AN SAH, and we should be also alert to preventable causes of delayed neurological deterioration for improving the outcome in all elderly groups.

• 종양간호연구
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• 제12권1호
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• pp.52-60
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• 2012

Purpose: This study is to determine knowledge about early detection and risk perception of cancer according to taking cancer screening tests in the general population. Methods: The participants were 151 people aged 40 years or older. A questionnaire consisted of knowledge about early detection (warning signs, cancer screening methods, general knowledge for early detection), cancer risk perception and history of cancer screening during past 2 years. Results: The percentages of correct answers were 64.7% in knowledge about warning signs, 73.7% in knowledge of cancer screening tests and 80.1% in general knowledge for early detection. Participants had the highest knowledge about screening methods for stomach cancer and the lowest for liver and colon cancer. The level of risk perception was medium. The participants who participated in cancer screening showed lower risk perception than those who did not. There was no significant relationship between knowledge and performance of cancer screening. The primary reason for not participating in cancer screening was patient's perception of their own health. Conclusion: These results suggest that cancer risk perception can affect the performance of cancer screening and we need to study how to handle this problem. Additionally screening programs should focus on liver cancer and colon cancer.

• 혜화의학회지
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• 제14권2호
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• pp.93-105
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• 2005

Objective : We investigated the actual condition of oriental medical office in a public health center. Methods : We classified patients who visited an oriental medical office iin a public pealth center of Dalseong-gun, Daegu Metropolitan City during recent 3 years by KCPJMAIN(data processing system), according to location, age, time(month, year), sex, disease, insurance, etc. Results : As a local category, the residents in Hyeunpung-Myeon higher than 80% of the patients who visited the public health center. The patients aged over 60 occupied 80% of the patients. The frequency of the treatment was more than 10 in those patients aged over 60. The number of the patients was the highest in May when there was a change for the past 36months, whereafter the number has sustained decline for 3-5 months and repeated decreasing. As a gender category, the female inpatients were 10732(82%). This statistics shows that these musculoskeletal system disease occupied large part in them. As a heath insurance category, the patients who were insured by health care were 12454(96.30%). Conclusion : It should need to enable the rural residents who have difficulty benefitting from medical service to reach the service by making their access to the oriental medical office in public health center easier. Most of all, the support from both government and municipality should be urged to accomplish it. plus, it should be included not only boosting doctors' reliance but also improving the capability and services of doctors in public heath center. In conclusion, the treatment service in public health center should be diversified beyond musculoskeletal system disease and the identity transform of public health center should be needed to appeal to young generation.

• 한국조사연구학회지:조사연구
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• 제12권2호
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• pp.1-26
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• 2011

초고령(80세 이상) 사망률에 대한 양적, 질적 자료의 결여는 한국의 초고령 사망률에 대한 체계적인 연구의 최대 걸림돌이 되어 왔다. 그러나 세계가 경험해 보지 못한 한국의 급속한 고령화는 미래의 인구구조의 근본적인 변화를 초래하게 되어 초고령 사망률의 수준, 패턴, 그리고 추이분석은 더 이상 미룰 수 없는 과제가 되었다. 사망률 추이는 80세 이상(80+) 또는 85세 이상(85+)로 절단된 형태의 과거 사망률 자료를 115세까지의 각 세별 사망률로 확장하여 분석될 수 있다. 이러한 확장은 한국형 표준사망률의 작성이 우선되어야 가능하며 이 표준사망률을 통해 한국의 초고령 사망률의 수준과 패턴의 파악이 가능해진다. 한국형 표준 사망률의 작성은 하나의 관계모형과 11개의 함수로부터 도출되며, 성별로 최적의 모형은 적합도를 측정하는 세 가지의 통계량과 사망률의 세 가지 일치성을 기준으로 선택되었다. 본 논문에서는 작성된 표준사망률을 이용하여 과거의 절단된 사망률을 확장하였고 이 확장 과정에서 필연적으로 발생하는 종단면적인 사망률의 일치성을 해결하는 방안을 제시하였다.

• 한국산학기술학회논문지
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• 제22권5호
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• pp.60-70
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• 2021

본 연구의 목적은 한국 성인의 생애주기별 자살생각에 대한 이해를 도모하고 자살생각에 영향을 미치는 요인을 확인하기 위한 것으로, 한국의료패널 2016년도 자료를 이용한 2차분석 연구이다. 만 19세 이상 성인 중 자살생각, 신체적 요인, 정신적 요인 등의 주요 자료에 결측치가 없는 14,538명을 대상으로 연령에 따라 청·장년기(19~39세), 중년기(40~64세), 노년기(65세 이상)로 구분하고 χ²-test와 t-test, multiple logistic regression으로 자료를 분석하였다. 연구결과, 청·장년기 2.9%(108명), 중년기 3.2%(181명), 노년기 3.7%(80명)의 대상자가 지난 1년간 자살생각을 한 것으로 나타났다. 생애주기별 자살생각에 영향을 미치는 요인은 청·장년기 대상자는 불안, 우울, 약물 복용과 삶의 질이고, 중년기 대상자는 주관적 건강상태, 스트레스, 불안, 우울, 약물 복용과 삶의 질이며, 노년기 대상자는 체질량지수, 스트레스, 불안, 우울과 삶의 질이었다. 따라서 생애주기별 자살생각에 영향을 미치는 요인은 생애주기에 따른 자살 위험집단을 선별하기 위한 주요 요인으로 고려하고, 위험집단의 자살을 예방 및 관리하기 위한 차별화된 중재 프로그램이 개발 및 제공되어야 할 것이다.

• Physical Therapy Rehabilitation Science
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• 제8권1호
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• pp.32-39
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• 2019

Objective: The aim of this study is to investigate the effects of whole body vibratory stimulation on muscle strength, balance, and fall efficacy among super-aged women. Design: Randomized controlled trial. Methods: Twenty-eight super-aged women over 80 years of age were assigned to either the experimental group (n=14) and control group (n=14). The experimental group received an exercise program that used the whole body vibratory stimulation with a frequency of 30 Hz and amplitude of 3 mm, and the control group received an exercise program without vibratory stimulation. Intervention was provided for 4 weeks, 3 sessions per week, and 30 minutes per session. In order to measure lower extremity muscle strength the 30-second chair stand test (CST) was used. The Berg Balance Scale (BBS) was used to measure dynamic balance. Static balance was measured by tracking the path length, velocity, and area of the center of pressure (CoP). The Falls Efficacy Scale (FES) was used to measure the subjects' fear of falling. Results: Both the experimental and control group demonstrated statistically significant increase in muscle strength, dynamic balance, and fall efficacy (p<0.05). Only the experimental group showed significant improvements in static balance before and after the intervention (p<0.05). The experimental group showed significantly greater improvements in CST, BBS, and CoP (path length, velocity) than control group (p<0.05). Conclusions: Whole body vibratory stimulation exercise is shown to be a safe and appropriate physical therapy intervention method to enhance muscle strength, balance, and fall efficacy of super-aged women.

• 한국콘텐츠학회논문지
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• 제13권5호
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• pp.354-365
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• 2013

본 연구는 재가노인의 낙상환경위험평가 도구를 개발하고, 신뢰도와 타당도를 검정하는 방법론적 연구이다. 예비문항은 20인의 관련 전문가에 의한 CVI(내용타당도 지수)를 사용한 내용타당도 검정을 실시하여 최종 52문항을 선정하였다. 최종도구의 타당도 및 신뢰도 검정을 위해 65세 이상 재가노인 299명에게 자료수집을 실시하여 분석하였다. 그 결과 조사자간 신뢰도는 1개 문항을 제외한 51개 문항에서 모두 kappa 값이 0.80 이상으로 나타나 신뢰도가 인정되었고, 재조사방법을 통하여 나타난 일치율은 45개 문항에서 모두 80.0% 이상으로 나타났다. 구성타당도도 낙상군과 비낙상군간에 낙상환경위험평가 점수가 통계적으로 유의한 차이를 나타내 입증되었다(t=3.50, p=.001). 본 도구는 타당도와 신뢰도가 검증되었고, 낙상예방을 위한 더 안전한 환경의 개발과 관련된 추후연구에 기여할 것이다.

• Nuclear Engineering and Technology
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• 제54권2호
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• pp.709-731
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• 2022

Loss of fracture resistance due to thermal aging degradation is a potential limiting factor affecting the long-term (80+ year) viability of nuclear reactors. To evaluate the effects of decades of aging in a practical time frame, accelerated aging must be employed prior to mechanical characterization. In this study, a variety of chemically and microstructurally diverse austenitic stainless steels were aged between 0 and 30,000 h at 290-400 ℃ to simulate 0-80+ years of operation. Over 600 static fracture tests were carried out between room temperature and 400 ℃. The results presented include selected J-R curves of each material as well as K_0.2mm fracture toughness values mapped against aging condition and ferrite content in order to display any trends related to those variables. Results regarding differences in processing, optimal ferrite content under light aging, and the relationship between test temperature and Mo content were observed. Overall, it was found that both the ferrite volume fraction and molybdenum content had significant effects on thermal degradation susceptibility. It was determined that materials with >25 vol% ferrite are unlikely to be viable for 80 years, particularly if they have high Mo contents (>2 wt%), while materials less than 15 vol% ferrite are viable regardless of Mo content.

• 대한통합의학회지
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• 제9권4호
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• pp.91-103
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• 2021

Purpose : This study aimed to evaluate the effects of a cognitive enhancement brain yoga program on short-term memory and serum brain-derived neurotrophic factor (BDNF) levels according to the cognitive state in men aged 20-29 years. Methods : Thirty healthy volunteers aged 20-29 years were divided into four groups: brain yoga group, yoga group, combined exercise group, and control group. Seven people were assigned randomly per group. A single-session intervention was conducted over 50 min and consisted of three parts: warm-up, main exercise (brain yoga, yoga, combined exercise, or non-exercise), and cool-down. Serum BDNF levels were measured using enzyme-linked immunosorbent assay, and short-term memory was evaluated using the forward number span test before and after the intervention. Results : BDNF levels significantly increased within the brain yoga group after the intervention (from 28874.37±5185.57 to 34074.80±7321.12, p=.003), whereas there were no significant differences pre-and post-intervention in the other groups. The inter-group comparison showed a significant interaction between the brain yoga group and the combined exercise group (p=.036) but no significant interaction between any of the other groups. Forward number span scores were significantly increased in the brain yoga group (from 9.43±9.83 to 23±7.92, p=.012) and theyoga group after the intervention (from 13.43±9.41 to 24.14±8.45, p=.011), whereas there were no significant changes after the intervention in any other groups. Conclusion : Our findings showed that a single-session, 50-minute brain yoga exercise improved short-term memory and increased serum BDNF levels in healthy men aged 20-29 years and that yoga improved only short-term memory in healthy men of this age group.