• Title/Summary/Keyword: 코호트연구

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Incidence of Obesity-related Diabetes Mellitus in Adults with Prediabetes: Use of Data from a Prospective Cohort Study (당뇨전단계 성인의 비만이 당뇨병 발생 위험에 미치는 영향: 전향적 코호트 자료의 활용)

  • Han, Nara;Cho, HyangSoon;Ju, Jeong Suk;Lee, Kyoung Mee
    • Journal of East-West Nursing Research
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    • v.29 no.2
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    • pp.106-116
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    • 2023
  • Purpose: The purpose of this study was to identify the impact of obesity on the incidence of diabetes mellitus in adults with pre-diabetes. Methods: This study employed a longitudinal study design and utilized secondary data drawn from the Korean Genome and Epidemiology Study. This study used data from a sample of 3,693 adults with prediabetes who were followed every two years from 2001 to 2018. Statistical data analysis for frequency, number of cases per 1,000 person-years, log-rank test, Kaplan-Meier curve, and Cox's proportional hazards regression analysis was performed using IBM SPSS statistics version 26. Results: During the observation period, there were 1,309 (35.4%) patients with diabetes, and the total number of person-years was 35,342. The incidence of diabetes was higher in the obese group compared to the normal weight group (body mass index [BMI]: hazard ratio=1.57, 95% confidence interval [CI]=1.40~1.77, waist: hazard ratio=1.55, 95% CI=1.38~1.76, waist to hip ratio [WHR]: hazard ratio=1.53, 95% CI=1.24~1.89, body fat [BF] (%): hazard ratio=1.42, 95% CI=1.27~1.61). Conclusion: An increase in BMI, waist circumference, and WHR, which are indicators of obesity, can exacerbate the risk factors for diabetes. Thus, a decrease in BMI, waist circumference, and WHR is necessary to prevent pre-diabetes. In particular, health care professionals should provide individualized weight management program interventions, including adult obesity programs and obesity counseling in partnership with local health departments, to reduce BMI and waist circumference in people at high risk for diabetes.

Intergenerational Transmission of Poverty in Korea (한국에서의 빈곤의 세대간 이전)

  • Lee, Sang-Eun
    • Korean Journal of Social Welfare
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    • v.60 no.2
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    • pp.53-76
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    • 2008
  • This study analyze the intergenerational transmission of poverty in Korea, using the first wave of Korea Welfare Panel Study. For this analysis, I produced poverty transition tables across generation and estimated logistic models to explore the effects of parent's poverty on the children's adulthood poverty. As the results, I found that parent's poverty reduced children's education level and then the low education level increased the likelihood that children experience poverty in their adulthood. In other words, parent's poverty might increase children's adulthood poverty through the mediating effects of education level. This mediating effects were also identified in the analyses by group and cohort. From the analyses by group, daughters rather than sons, those from urban rather than rural area, and the older cohort rather than younger cohort showed greater intergenerational transmission of poverty.

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Incidence of Colon Cancer Related to Cigarette Smoking and Alcohol Consumption in Adults with Metabolic Syndrome: Prospective Cohort Study (대사증후군 성인의 흡연 및 음주 상태가 대장암 발생 위험에 미치는 영향: 전향적 코호트 연구)

  • Jo, Ahra;Oh, Heeyoung
    • Journal of Korean Academy of Nursing
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    • v.49 no.6
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    • pp.713-723
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    • 2019
  • Purpose: The purpose of this study was to identify the impact of cigarette smoking and alcohol consumption on the incidence of colon cancer in adults with metabolic syndrome. Methods: This study employed a longitudinal study design and utilized secondary data drawn from the Korean Genome and Epidemiology Study (KoGES). The data of a sample of 2,327 adults with metabolic syndrome tracked every two years from 2001 to 2014 were used in this study. Statistical data analyses of the frequency, number of cases per 100,000 person-years, log-rank test, Kaplan-Meier curve, and Cox's proportional hazards regression were performed using IBM SPSS statistics version 24. Results: During the observation period, the number of colon cancer cases was 46, and the total person-years were 252,444. The incidence of colon cancer was higher in current, over 10 pack-year smokers when compared to non-smokers (hazard ratio=3.38, 95% confidence interval=1.09~8.42). Conclusion: Excessive and long-term smoking should be avoided to prevent colon cancer, especially in adults with metabolic syndrome, since it might exacerbate the risk factors of colon cancer. Particularly, health professionals need to provide individualized smoking cessation interventions to those at high risk of colon cancer.

Factors affecting antibiotic prescription in dental outpatients - A nation-wide cohort study in Korea - (치과 외래 치료에서 항생제 처방에 영향을 주는 요인 - 한국 국민건강보험 표본코호트 연구 -)

  • Lee, Kyeong-Hee;Choi, Yoon-Young
    • Journal of Korean society of Dental Hygiene
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    • v.19 no.3
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    • pp.409-419
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    • 2019
  • Objectives: The purpose of this study was to analyze the factors affecting antibiotic prescription in dental outpatients. Methods: The present study was conducted using data from the National Health Insurance Service - National Sample Cohort. We analyzed prescriptions issued in the dental outpatient department in 2015, for adults over 19 years of age. Antibiotic prescription rates and mean prescription days were analyzed by sex, age, insurance type, presence of diabetes mellitus and hypertension, season in treatment, type of dental institution, and location of dental institution. Multivariate logistic regression was also performed to analyze the factors affecting antibiotic prescription in dental outpatients. Results: A total of 257,038 prescriptions were analyzed. The mean prescription days of antibiotics in dental outpatients were $3.04{\pm}1.08days$, and the prescription rate was 93.0%. Two variables (presence of diabetes mellitus and insurance type) were excluded from the multivariate logistic regression analysis model because they did not significantly affect antibiotic prescription. The possibility of antibiotic prescription was higher in men ${\geq}61years$ of age and those with hypertension. Furthermore, antibiotics were most frequently prescribed in dental clinics rather than dental hospitals, and more frequently in Busan compared to other areas (p<0.001). Conclusions: Several factors were determined to affect antibiotic prescription, and detailed guidelines for consistent antibiotic prescription are needed.

Financial Projection for National Health Insurance using NHIS Sample Cohort Data Base (국민건강보험 표본코호트 DB를 이용한 건강보험 재정추계)

  • Park, Yousung;Park, Haemin;Kwon, Tae Yeon
    • The Korean Journal of Applied Statistics
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    • v.28 no.4
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    • pp.663-683
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    • 2015
  • The change of the population pyramid due to low fertility and rapid aging threatens the financial sustainability of National Health Insurance. We construct statistical models for prevalence rates and medical expenses using National Health Insurance Service (NHIS) sample cohort data from 2002-2013. We then project yearly expenditures and income of national health insurance until 2060 that considers various assumptions in regards to future population structure and economic conditions. We adopt a VECM-LC model for prevalence rates and the double exponentially smoothing method for the per capita co-payment of healthcare expense (in which the two models are institution-disease-sex-age specific) to project of national health insurance expenditures. We accommodate various assumptions of economic situations provided by the national assembly and government to produce a financial projection for national health insurance. Two assumptions of dependents ratios are used for the projection of national health insurance income to conduct two future population structures by the two assumptions of aging progresses and various assumptions on economic circumstances as in the expenditure projection. The health care deficit is projected to be 20-30 trillion won by 2030 and 40-70 trillion won by 2060 in 2015 constant price.

Regional Characteristics of Medical Service Users and Medical Institutions in Korea (한국 의료서비스 이용과 제공의 공간적 특성)

  • Yang, Homin
    • Journal of the Economic Geographical Society of Korea
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    • v.21 no.1
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    • pp.1-19
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    • 2018
  • This study aims to analyze the regional patterns of user-provider in medical services for spatial improvement of national health care delivery system in south Korea. By using the National Health Insurance Service National Sample Cohort DB, the characteristics and changes in the medical service cases served outside of residing regions are found. In 2013 the rate of the cases served outside of residing regions was declined slightly and users of medical institutions outside of their residing area tended to have high income level relatively and to visit hospitals than clinics. And departments visited have changed from 2002.