• 제목/요약/키워드: Statistic Examination

검색결과 36건 처리시간 0.024초

통계적 고찰과 수목분포에 따른 열량분석을 통한 산림화재 위험성 평가에 관한 연구 (A study on the assessment of wildland fire hazard through statistic examination and calorie analysis according to the geographical distribution of vegetation)

  • 김광일;김동현
    • 한국화재소방학회논문지
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    • 제14권3호
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    • pp.27-32
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    • 2000
  • 산림에 대한 화재 위험성 평가는 산불의 예방, 진화 및 관리에 있어서 우선적으로 고려되어야 할 부분이다. 단일 화재로서는 축내 최대 규모인 1997년 4월에 발생한 강원도 고성산불과 2000년 4월에 발생한 강원도 영동지방 산불은 이러한 화재위험성 평가의 필요성을 절실히 요구하고 있다. 현재 국내에서의 사용하고 있는 위험도의 표현은 기상인자에 의해 연료가 화재에 노출될 수 있는 위험을 나타낸 것으로 습도측정봉 무게 환산식을 통해 산불 발생 위험지수 산정하여 산불경보시스템을 사용하며 나타내고 있다. 앞으로, 지역별 종합적인 산림화재 위험성 평가를 위해서는 주요 인자들의 위험성을 측정하고 통계적 고찰을 통한 위험성 평가를 표현할 필요성이 있다. 이에 본 연구에서는 먼저 통계적 고찰을 통해 발생 빈도와 피해의 심각성을 분석하여 위험성을 평가하였고 수목의 열량적 가치를 시차주사열량계 실험을 통해 분석하여 수목분포도에 따를 열적 상대 위험성을 평가하였다

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The Validity and Reliability of a Screening Questionnaire for Parkinson's Disease in a Community

  • Kim, Jong-Hun;Cheong, Hae-Kwan;Lee, Chong-Sik;Yi, Sung-Eun;Park, Kun-Woo
    • Journal of Preventive Medicine and Public Health
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    • 제43권1호
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    • pp.9-17
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    • 2010
  • Objectives: Parkinson's disease is one of the most common neurodegenerative diseases in the elderly population. In order to estimate the prevalence of Parkinson's disease in the community, the application of a good screening tool is essential. We evaluated the validity and reliability of a Parkinson's disease screening questionnaire and propose an alternative measure to improve its validity for use in community surveys. Methods: We designed the study in a three-phase approach consisting of a screening questionnaire, neurologic examination, and confirmatory examination. A repeated survey was administered to patients with disease detected in the community and on 150 subjects. We examined internal consistency using Cronbach's alpha test, test-retest reliability using the kappa statistic, and validity using sensitivity, specificity, and ROC curves. Unadjusted odds ratios were utilized for the estimation of weights for each questionnaire item. Results: The Cronbach's alpha of the questionnaire was 0.708. The kappa statistic for test-retest reliability was good to generally fair in most of the items. When newly proposed weighting scores were used, the optimum cut-off value was 7/8. When cut-off value was 5/6 for surveying prevalence in a community, the sensitivity was 0.98, and the specificity was 0.61, with simultaneous improvement in reliability. Conclusions: We recommend 5/6 as the ideal cut-off value for the survey of PD prevalence in community. This questionnaire designed for the Korean community could help future epidemiologic studies of PD.

적외선 체열진단을 이용한 구안와사 환자(Bell's palsy)의 호전기간에 대한 임상연구 (Clinical study on the improving period of the bell's palsy patients with D.I.T,I)

  • 박용호;유미경;박윤희;박수연;최정화;김종한;김대수
    • 한방안이비인후피부과학회지
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    • 제19권2호
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    • pp.202-211
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    • 2006
  • Objectives : This study is designed to evaluate correlation between the data of D.I.T,I examination in Bell's palsy and the improving period. Methods : This study researched into the clinical statistics for 50 patients who are in Bell's palsy and they are treated with oriental medical care of Dongshin university during 18months from January 1, 2005 to June 1, 2006. The data which examinated by D.I.T.I, are the thermal difference of normal and abnormal site of acupuncture int Gl4 BL2 GB3 S3 S4 S6 TE17 in Bell's palsy. Result : There was statistic significance between thermal difference of normal, abnormal site and the improving period. The period was shorter in normal thermal pattern than hypothermal pattern, hyperthermal pattern. Conclusion : According to the result, there was a statistic significance that more thermal difference and more difficult to recover in Bell's palsy.

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당뇨병성 발궤양 발생 위험 예측모형과 노모그램 개발 (Development of a Diabetic Foot Ulceration Prediction Model and Nomogram)

  • 이은주;정인숙;우승훈;정혁재;한은진;강창완;현수경
    • 대한간호학회지
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    • 제51권3호
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    • pp.280-293
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    • 2021
  • Purpose: This study aimed to identify the risk factors for diabetic foot ulceration (DFU) to develop and evaluate the performance of a DFU prediction model and nomogram among people with diabetes mellitus (DM). Methods: This unmatched case-control study was conducted with 379 adult patients (118 patients with DM and 261 controls) from four general hospitals in South Korea. Data were collected through a structured questionnaire, foot examination, and review of patients' electronic health records. Multiple logistic regression analysis was performed to build the DFU prediction model and nomogram. Further, their performance was analyzed using the Lemeshow-Hosmer test, concordance statistic (C-statistic), and sensitivity/specificity analyses in training and test samples. Results: The prediction model was based on risk factors including previous foot ulcer or amputation, peripheral vascular disease, peripheral neuropathy, current smoking, and chronic kidney disease. The calibration of the DFU nomogram was appropriate (χ2 = 5.85, p = .321). The C-statistic of the DFU nomogram was .95 (95% confidence interval .93~.97) for both the training and test samples. For clinical usefulness, the sensitivity and specificity obtained were 88.5% and 85.7%, respectively at 110 points in the training sample. The performance of the nomogram was better in male patients or those having DM for more than 10 years. Conclusion: The nomogram of the DFU prediction model shows good performance, and is thereby recommended for monitoring the risk of DFU and preventing the occurrence of DFU in people with DM.

한국 30세 이상 성인의 심혈관계 질환의 위험 요인 (Risk Factors for Cardiovascular Disease in Adults Aged 30 Years and Older)

  • 배연희;이고운
    • 대한통합의학회지
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    • 제4권2호
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    • pp.97-107
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    • 2016
  • Purpose : Cardiovascular disease is major factor of mortality in worldwide. Previous studies shown that the socioeconomic factors, nutrition factors, health behavior factors, biological factors and co-morbidity are increasing a prevalence of cardiovascular disease. Method : This study examined the risk factors for cardiovascular disease among adults aged 30 years and older using the data from the 2012 to 2014 Korean National Health and Nutrition Examination Survey (KNHANES). The study participants were 7,555 Cardiovascular disease includes hypertension, stroke, angina pactoris, and myocardial infarction. Descriptive statistic and multivariates logistic regression were calculated. Result : The overall prevalence of cardiovascular disease was 31.16% in the participants. Cardiovascular disease was significantly associated with gender, age, income, education, marital status as socioeconomic factors in unadjusted model. After adjusting socioeconomic status variables, past smoker (OR 1.27, 95% CI 1.05-1.55), obesity (OR 7.14, 95% CI 4.21-12.11), skipping a meal (OR 2.79, 95% CI 2.46-3.16), HDL-C (OR 0.99, 95% CI 0.98-0.99) and WC (OR 1.06, 95% CI 1.05-1.07) were associated with cardiovascular disease. Conclusion : The results marked the importance of finding high risk groups and an early management of cardiovascular disease.

관상동맥질환자의 주관적 건강이 우울에 미치는 영향: 스트레스 인지 매개효과 (The Influence of Subjective Health on Depression in Patients with Coronary Artery Disease: Mediating Effects of Perceived Stress)

  • 진혜경
    • 근관절건강학회지
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    • 제28권1호
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    • pp.61-69
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    • 2021
  • Purpose: This study investigated the mediating effect of perceived stress in the relationship between subjective health and depression in patients with coronary artery disease. Methods: This secondary analysis study used data from the 2016-2018 Korea National Health and Nutrition Examination Survey (KNHANES). Study participants included 466 patients over 20 years of age with coronary artery disease. Measures included questions about general characteristics, subjective health, perceived stress, and depression. The data were analyzed using complex sample design, descriptive analysis, Rao-Scott ��2 statistic, and multivariate logistic regression analysis with the SPSS 24.0 program. Results: Subjective health influenced depression, and perceived stress partially mediated it. Conclusion: To prevent depression in patients with coronary artery disease, it is necessary to develop effective stress management strategies.

보건관리대행기관 산업보건간호사의 업무에 관한 조사 (A Study on the Activity of Occupational Health Nurses in Occupational Group Health Service)

  • 김자희
    • 한국직업건강간호학회지
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    • 제3권호
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    • pp.5-20
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    • 1993
  • This study was aimed to investigate the actual condition of the performance of the occupational health nursing services, and to analyze a main cause which affects on the execution of its duties for occupational health nurses in occupational group health service. It had been surveyed by responsed data from the 105 respondents out of 180 persons. The results were as follows : 1. In performance of occupational health nursing services by the number of assigned plant, participation rate of health examination tended to significantly increase with decreasing the number of assigned and it was observed that the visiting rate of every month was also significantly higher on touring inspection of work plant, recommendation of facility improvement for work environment, understanding the modification of manufacturing process, and inspection of welfare and sanitation facilities. 2. While they executed their nursing services according to duration of service, the more, their duration of service was, the higher, participation rate of health examination, health check in returning to work for injured workers, talk with other health managers on promoting welfare, service evaluation for a year plan, record of health statistic, and experience of first aid service were. And it was found out that the visiting rate of every month was also significantly higher on touring inspection of work plant. 3. In regard to occupational health nursing services by age, the participation rate of health examination and the experience of first aid service were significantly higher as the age increased. And also the visiting rate of every month was significantly higher on touring inspection of work plant, compared with young ones. 4. In performance of occupational health nursing services by the time required visiting plant, The shorter, the time required visiting plant was, the higher, the visiting rate of every month was, on time of health consultation for diseased workers, and inspection of welfare and sanitation facilities. 5. The subjects of health education were mostly liver disease and occupational hearing loss and video tape was used mostly in health education, monthly health education was the highest in 1-3 times(74.5%) and its duration was the highest in about 60 minutes(33.3%). 6. Vaccination of hepatitis among the specific health services was the highest accounting for 64.7%.

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전산화단층촬영검사와 일반촬영검사의 방사선 선량에 대한 인식도 조사 (The Survey for Awareness of Radiation Dose of CT and General X-ray Examination)

  • 주영철;임청환;정홍량;유인규;조한별;양오남;김민철;윤준
    • 대한방사선기술학회지:방사선기술과학
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    • 제35권1호
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    • pp.35-44
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    • 2012
  • 서울소재 'S'병원에서 근무중인 방사선사를 대상으로 병원 근무경력 및 CT검사실 근무 경험 유 무, 현재 사용하고 있는 방사선 선원의 종류에 따른 CT검사와 일반촬영검사의 방사선 선량과 위험성에 관한 인식도 조사를 통해 CT검사의 위험성에 대한 각성을 위한 기초자료로 활용하고자 한다. 영상의학과에 근무하는 방사선사 중 131명을 대상으로 설문지를 통해 연구가설 검정을 위한 자료를 수집하였고, 설문문항의 Cronbach @계수는0.825988과0.767161로 나타났으며, p-value의 기각률은<0.05로 하였다. 연구가설검정을 위해 SAS 9.1(SAS Institute Inc., Cary, NC, USA.)통계패키지를 이용하여 Mann-Whitney test와 Kruskai-Wallis test, Two sample T-test, Two sample T-test with Bonferroni's Correction, One-way ANOVA 통계분석방법 등을 이용하였다. CT검사와 일반촬영의 선량에 관한 가설의 각 p-value 값은 0.2291~0.9663의 범위로 나타났고, CT검사와 일반촬영검사의 위험성에 관한 가설의 각 p-value 값은 0.1924~1.0000의 범위로 나타났다. 모든 연구가설의 p-value값이 기각률(<0.05)을 상위하여 나타났으며, 현재 'S'병원에 근무중인 방사선사들은 근무경력 및 CT검사실 근무경력 유무, 현재 사용하는 방사선 선원의 종류에 관계없이 일반촬영 보다 CT검사가 선량이 많으며, 위험하다고 인식하고 있는 것으로 나타났다.

국민건강보험공단 건강검진에 대한 만족도 연구 -부산시의 건강검진수검자를 대상- (A study on the satisfaction of Health Examination for National Health Insurance service -Target of medical examinee in Busan-)

  • 김원;김민호;심규범;신문주
    • 한국융합학회논문지
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    • 제4권2호
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    • pp.1-8
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    • 2013
  • 이 연구는 최근 들어 국민소득이 늘어나고 생활수준이 향상됨에 따라 국민들의 의료에 따른 기대와 욕구의 증가로 인한 건강검진의 확실한 서비스가 필요로 되었으며 국민 입장에서 본 건강보험 공단의 건강검진에 대한 만족도를 알아보기 위해서 시행하였다. 2013년 3월부터 6월까지 부산시의 건강검진 수검자를 대상으로 건강검진에 대한 만족도와 인식조사를 자기기입식 설문조사로 시행했으며, 총 300부중 221부를 SPSS를 사용하여 교차분석, T-test, Anova 분석을 시행하였다. 결과로는 일반적 특성에 따른 건강검진 이용유무, 1개월전 의료기관의 이용유무, 하루 담배 흡연량의 차이, 술을 마시는 횟수에서 통계적으로 유의하였다. 또한 검진기관 만족도는 $3.22{\pm}0.52$, 검진서비스에 대한 의견은 $3.31{\pm}0.55$(5점 척도), 건강검진 태도는 $3.73{\pm}0.54$로 나타났다.

관상동맥질환자의 규칙적 운동이행 영향요인의 성별 비교: 국민건강영양조사 자료(2013~2015년) 활용 (Gender Comparison Factors Influencing Regular Exercise Adherence in Patients with Coronary Artery Disease: Data from the 6th Korea National Health and Nutrition Examination Survey (2013~2015))

  • 진혜경;김민주
    • 기본간호학회지
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    • 제25권2호
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    • pp.134-145
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    • 2018
  • Purpose: The purpose of this study was to investigate gender related factors that influence regular exercise adherence in patients with coronary artery disease. Methods: This secondary analysis study used data from the 2013~2015 Korea National Health and Nutrition Examination Survey (KNHANES). Three hundred and eighty patients over 20 years of age and having coronary artery disease were selected for this study. Measures included questions about regular exercise, general characteristics, health behaviors, and health status. Data were analyzed using descriptive analysis, Rao-Scott $x^2$ statistic, and multiple logistic regression analysis with the SPSS 21.0 program. Results: The results were as follows. Men did more regular exercise than women (58.8% vs 40.1%). The multivariate-adjusted Odds Ratios (OR) for regular exercise adherence in men were 2.93 (95% CI: 1.39~6.17) for non smokers and 3.06 (95% CI: 1.53~6.13) for men with 0 to 1 comorbidities. Women had a high odds ratios of 0.38 (95% CI: 0.18~0.82) for not using alcohol and 2.10 (95% CI: 1.03~4.29) for no back pain. Conclusion: To improve regular exercise adherence in patients with coronary artery disease, it is necessary to develop different approaches considering gender.