• 전자공학회논문지SC
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• 제49권1호
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• pp.94-102
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• 2012

최근 고령 사회에 들어섬에 따라 고령 운전자의 수가 증가하는 추세이다. 고령 운전자의 교통사고 대부분이 차량 운전자의 부주의로 인해 발생한다. 이러한 부주의들에는 노화에 따른 느린 몸의 움직임으로 차량 조작 미숙, 노안으로 인한 좁은 시야로 낮은 시각정보 검색 문제 그리고 낮은 대비감도로 인한 물체 식별 문제 등으로 기인한다. 본 연구에서는 고령 운전자의 안전 운전 지원을 위해 도로 영상에서 시각적 주의를 가져야 하는 관심물체 영역들을 실시간으로 자동 검출하는 방법을 제안한다. 제안한 방법은 입력 영상으로부터 선택적 시각 주의를 갖는 관심물체후보 영역들을 실시간으로 검출하기 위해 칼라, 기울기, 그리고 밝기 특징정보들의 대비 변화 정도를 3차원으로 표현한 현저함 맵(Saliency map)을 생성하고, 동시에 입력 영상으로부터 물체들의 경계선 획득을 위해 mean-shift 알고리즘을 적용하여 영상을 분할한다. 그리고 분할된 영역에 속한 현저함 픽셀의 유무에 따른 선택적 시각 주의 영역을 검출한다. 제안한 방법을 다양한 실외 환경 조건에서 실험한 결과, 도로 상의 다양한 물체에 빠른 검출율과 함께 비교적 복잡한 도로 환경에서도 강임함을 알 수 있다.

• 한국산학기술학회논문지
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• 제14권1호
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• pp.109-115
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• 2013

이 연구는 대구광역시와 경상북도에 소재하는 각각 3곳의 노인복지관 및 노인대학의 65세 이상 노인 501명을 대상으로 구강보건진료 관리 항목이 자가인식구강상태에 미치는 영향력을 조사함으로써 효과적인 구강보건관리 방안을 모색하기 위해 연구를 실시하였다. 연령에 따른 구강보건진료 관리 항목의 선호도를 조사한 결과, 65~69세는 불소도포, 65~74세는 치석제거, 칫솔질 교습, 70~74세는 틀니 세정 및 관리, 75세 이상은 틀니 제작을 선호하였다. 구강보건진료 관리 항목이 노인의 자가인식구강상태에 미치는 영향력은 현 구강상태가 좋지 않고, 저작지장이 많으며, 구강건조가 있을수록 틀니 제작을 가장 선호하는 것으로 나타났다. 치아수가 적고, 틀니를 가지고 있을수록 틀니 세정 및 관리를 가장 선호하였으며, 흔들리는 치아가 있고, 치통이 자주 있을수록 발치를 가장 선호하는 것으로 나타났다. 연령과 구강상태에 따라 구강보건진료 관리 항목의 선호도에 차이가 있으므로 각 개인에게 맞는 구강보건관리를 적용해야 할 것이다.

• 문화기술의 융합
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• 제5권2호
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• pp.189-194
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• 2019

본 연구는 중 장년을 대상으로 노후준비에 대한 실태조사를 한 연구이다. 중장년을 대상으로 설문조사를 의뢰한 후 회수하는 방법으로 실시하였다. 총 350부를 배포하여 응답이 부실하거나 누락된 문항이 많은 설문지를 제외한 39부를 제외하고 총 311부를 SPSS 21.0을 시용하여 빈도분석, t-test, oneway ANOVA를 실시하였다. 중장년층을 대상으로 지역적인 특색과 노인이 될 계층의 노후생활인지의 차이점을 파악하였으며, 본 연구의 목적은 다음과 같다. 첫째, 중 장년 사회인구학적 특성에 따른 노후생활인지의 차이점 도출, 둘째 중 장년 사회인구학적 경제적 노후생활인지, 신체적 노후생활인지, 사회적 노후생활인지의 차이점을 파악하여 노후준비를 위한 기초자료의 제공이다.

• Journal of Nutrition and Health
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• 제54권1호
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• pp.95-103
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• 2021

Purpose: High intake of cholesterol leads to cardiovascular disruption. Estimating the actual intake of cholesterol can be beneficial for nutrition intervention. This research aimed to develop Semi-Quantitative Food Frequency Questionnaire (SQ-FFQ) to estimate cholesterol intake and analyze its reliability and validity. Methods: SQ-FFQ was developed by sorting high cholesterol food items in Indonesian food database and food items' availability. A total of 30 older adults were randomly chosen from Public Health Center in Jagir District, Surabaya, Indonesia to test its validity. Reliability test was done by measuring the same developed SQ-FFQ in one-month period, while validity test was done by comparing SQ-FFQ results with 6-days food record. Statistical analysis used for reliability test was paired t-test, the Intra-class Correlation Coefficient (ICC), and Cronbach's α to measure the internal consistency. Meanwhile, validity of developed SQ-FFQ was analyzed using paired t-test and Bland-Altman. Results: Reliability of 2 administered SQ-FFQs showed a good agreement based on paired t-test analysis (p = 0.200), ICC (0.609), and Cronbach's α (0.757). Strong agreement was found in most of food items, but agreements for egg yolk and fried duck were poor. Significant difference was found between those food items (p = 0.001 vs. p < 0.001, respectively) with mean difference were -25.3 mg and 46.2 mg. Validity of developed SQ-FFQ2 compared to 6-days food diary records also found a strong agreement based on paired t-test and the Bland-Altman analysis. Conclusion: This baseline research provides a reasonably valid and repeatable measure of cholesterol intake estimation that can be widely used in nutrition and public health study, especially in Indonesia. No study has been conducted in Indonesia on the development of tools to estimate the cholesterol intake.

• 한국노년학
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• 제30권3호
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• pp.895-910
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• 2010

본 연구는 지역사회에 거주하고 있는 65세 이상 빈곤노인의 사회적 고립이 생활만족도에 어떠한 영향을 미치는지 살펴보고자 하였고, 사회적 고립이 생활만족도에 미치는 영향에서 사회적 인식이 매개효과를 가지는지를 검증하였다. 이를 위해 기장복지네트워크 조사연구(2009) 자료를 활용하였고, 이 자료중 부산시 기장군에 거주하고 있는 기초생활 수급대상자 또는 1,2종의 의료보호 대상자이면서 65세 이상 노인 256명의 자료를 분석대상으로 하였다. 자료 분석을 위해 상관관계 분석과 구조방정식에 의한 매개효과검증을 하였다. 연구결과에 의하면 조사대상노인의 5.5%는 극도의 사회적 고립을 경험하였고, 조사대상의 31%가 사회적 고립을 경험하고 있는 것으로 나타났다. 그리고 지역사회인식은 사회적 고립과 생활만족도와의 관계에서 매개효과를 가지는 것으로 나타났다. 이러한 연구결과들을 바탕으로 노인의 사회적 고립을 예방하기 위한 지역사회개입과 노인들의 사회참여 및 사회관계를 강조한 사회적고립 예방프로그램의 개발이 필요하다고 제안하였다.

• Hip & pelvis
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• 제35권3호
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• pp.157-163
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• 2023

Purpose: This study examined the methods for treatment of femoral neck fracture (FNF) preferred by members of the Korean Hip Society (KHS) and identified factors that influence decisions regarding the surgical intervention of choice. Materials and Methods: A total of 97 members of the KHS responded to the 16-question survey which included questions about the mean number of surgeries performed each month for treatment of femoral neck fractures, the cut-off age for deciding between internal fixation and arthroplasty, the implant used most often, usage of cement, and factors influencing each decision. Results: The mean cut-off age used when deciding between internal fixation and arthroplasty was 64 years old. Hemiarthroplasty (HA) (70%) was the most preferred option for treatment of displaced FNFs in cases where arthroplasty was indicated (total hip arthroplasty [THA] 19% and dual mobility THA 11%). The main reasons for selection of arthroplasty over reduction with internal fixation were age and pre-fracture ambulatory status. Pre-trauma ambulatory status and/or sports activity were the main factors in selection of HA over THA. Cement was used by 33% of responders. Poor bone quality and a broad femoral canal were factors that influenced the usage of cement. Conclusion: Management of FNFs in the elderly is a major health problem worldwide; thus, remaining alert to current trends in treatment is essential for surgeons. The mean cut-off age used in deciding between internal fixation and arthroplasty was 64 years old. HA is the preferred method for treatment of displaced FNFs for members of the KHS.

• Journal of Gastric Cancer
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• 제20권3호
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• pp.328-336
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• 2020

Purpose: The standard treatment for stage IB gastric cancer is curative surgery alone, but some patients show poor survival with disease recurrence after curative surgery. The aim of this study was to identify prognostic factors of recurrence and long-term survival in patients with stage IB gastric cancer after surgery. Materials and Methods: We retrospectively reviewed data from 253 patients with stage IB gastric cancer who underwent gastrectomy between 2011 and 2016 at Kyungpook National University Chilgok Hospital and analyzed the clinicopathological characteristics associated with recurrence and survival. Results: Fourteen patients experienced recurrence with a mean follow-up of 54.1 months. Two of these patients had locoregional recurrence and 12 patients had systemic recurrence. The median interval between the operation day and the day of recurrence was 11 months (range 4-56 months). Multivariate analysis revealed that lymphatic vessel invasion (LVI) (hazard ratio [HR], 3.851; 95% confidence interval [CI], 1.264-11.732) and the elderly (age≥65) (HR, 3.850; 95% CI, 1.157-12.809) were independent risk factors for recurrence after surgery. The LVI (HR, 3.630; 95% CI, 1.105-11.923) was the independent prognostic factors for disease-specific survival (DSS). The 5-year DSS rates were 96.8% in patients who did not have LVI, and 89.3% in patients who had LVI. Conclusions: This study shows that LVI was associated with recurrence and poor survival in patients with stage IB gastric cancer after curative gastrectomy. Patients diagnosed with LVI require careful attention for systemic recurrence during the follow-up period.

• 생물정신의학
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• 제16권4호
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• pp.238-245
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• 2009

Objectives : Mild Alzheimer's disease(AD) is uncertain to be related to visuospatial working memory subsystem dysfunction. We used the self ordered pointing test(SOPT) to find the characteristics of visuospatial working memory in mild AD. Methods : We compared the visuospatial working memory abilities of 20 patients with mild AD and 20 normal elderly controls(NC) using SOPT, of which stimuli consisted of two stimuli types(A : abstract, C : concrete) and two stimuli numbers(8 and 12). Therefore, working memory was tested using C8, C12, A8, and A12 stimuli conditions in SOPT. Mixed-model ANOVA was conducted with the AD and NC groups as between-subjects factor, with stimuli types and stimuli numbers as the within-subjects factors and with SOPT error rates as the dependent variable. Results : The AD group showed higher error rates in SOPT than the NC group. The NC group showed low error rates in concrete stimuli than in abstract stimuli and in small stimuli numbers than in large stimuli numbers. And the AD group showed no differences between stimuli types or stimuli numbers. Conclusion : AD patients showed a poor performance in visuospatial working memory using concrete stimuli. The result suggests that there is a non-transformation from visual input to phonological working memory in AD. Patients with AD showed a poor performance although in small stimuli number condition of SOPT. It suggests that in AD, visuospatial working memory is not working well although in low central executive loads.

• 보건교육건강증진학회지
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• 제33권5호
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• pp.23-36
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• 2016

Objectives: This study aims to define the relationships between the sensory, cognitive and physical functions of young-old and old-old individuals. Methods: Participants were 10,451 elderly individuals aged 65 and above, raw data of a 2014 National Survey on Korean Older Persons was used. To investigate the relationships among the sensory, cognitive, and physical functions, a structural equation model was used. Results: The key analysis results are summarized as follows; 5% had poor vision function(young-old 3.5%, old-old 7.1%), 3.8% had poor auditory function(young-old 1.7%, old-old 6.7%), 33.0% had decline in cognitive function(young-old 30.9%, old-old 35.7%), 3.6% were disabled(young-old 1.6%, old-old 6.3%) and cognitive function influences physical function more greatly than does sensory function. Additionally, in the young-old groups, vision among sensory functions, attention among cognitive functions, and IADL among physical functions, turned out to be the most influential. However, in the old-old groups, auditory function among sensory functions, orientation among cognitive functions, and IADL among physical functions, turned out to be the most influential. Conclusions: This study implies that functions in the young-old and old-old individuals must be considered with all three functions-sensory, cognitive, and physical-together at the same time and that this comprehensive approach is necessary in national policy making.

• Journal of Preventive Medicine and Public Health
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• 제40권5호
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• pp.381-387
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• 2007

Objectives: This study was conducted in order to determine how the association between socioeconomic position(SEP) and health status changes with age among Seoul residents aged 25 and over. Methods: We utilized the 2001 and 2005 Seoul Citizens Health Indicators Surveys. We used self-rated 'poor' health status as an outcome variable, and family income as an indicator of SEP. In order to characterize the differential effects of socioeconomic position on health by age, we conducted separate multivariate analyses by 10-year age groups, controlling for sociodemographic covariates. In order to assess the relative health inequality across socioeconomic groups, we estimated the Relative Index of Inequality (RII). Results: The risk of 'poor health' is significantly high in low family income groups, and this increased risk is seen at all ages. However, the magnitude of relative socioeconomic inequality in health, as measured by the odds ratio and RII, is not identical across age groups. The difference in health across income groups is small in early adulthood (ages 25-34), but increases with age until relatively late in life (ages 35-64). It then decreases among the elderly population (ages more than 65). When the RII reported in 2005 is compared to that reported in 2001, RII can be seen to have increased across all ages, with the exception of individuals aged 25-34. Conclusions: The magnitude of health inequality is the greatest during mid- to late adulthood (ages 45-64). In addition, health inequalities have worsened between 2001 and 2005 across all age groups after economic crisis.