• Journal of health informatics and statistics
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• 제43권4호
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• pp.344-351
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• 2018

Objectives: The purpose of this study is to investigate the impact of health behaviors of male workers without diabetes such as smoking, drinking and physical activities on HbA1c using 2015 and 2016 data from Korea National Health and Nutrition Examination Survey (KNHANES). Methods: The final study subjects of KNHANES were a total of 1,703 male workers in their 30s-50s who had normal levels of fasting blood sugar level, HbA1c, and hemoglobin. For the study variables, age, household income, educational level and occupation were included as socio-demographic characteristics; smoking behavior, drinking behavior, and physical activity behavior as characteristics of health behavior; and waist circumference, body mass index, systolic and diastolic blood pressures, total cholesterol, triglyceride and HDL cholesterol as medical examination characteristics were included. The analysis was conducted using independent variables t-test, one-way ANOVA, Pearson's correlation analysis and multiple regression analysis. Results: Socio-demographic factors that affect HbA1c were age, educational level, and occupation. As for HbA1c according to the status of current smoking, it was higher in order of the present, past and nonsmoking and HbA1c according to smoking amount pack-year increased linearly in between less than 1 pack-year and over 30 pack-year (p<0.001). Muscular exercises affected the reduction of HbA1c (p<0.05). In the multiple regression analysis with independent variables of the socio-demographic characteristics and health behavior, factors affecting HbA1c were age, occupation and smoking amount pack-year (p<0.05). In the multiple regression analysis where the characteristics of physical examination were added, factors affecting HbA1c were age, occupation, smoking amount pack-year, waist circumference and total cholesterol (p<0.001). Conclusions: As a result, the health behavior that had the most effect on HbA1c management for male workers without diabetes was the total lifetime smoking amount. Therefore, it is essential to prevent smoking as well as control, cholesterol to prevent diabetes for male workers.

• Asian Pacific Journal of Cancer Prevention
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• 제14권12호
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• pp.7127-7131
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• 2013

The primary aim of this study was to evaluate the relationship of single nucleotide polymorphisms (SNPs) in ribosomal protein SA (RPSA) gene with colorectal cancer (CRC). A case-control study including 388 controls and 387 patients with CRC was conducted in a Chinese population. Information about socio-demography and living behavior factors was collected by a structured questionnaire. Three SNPs (rs2133579, rs2269349, rs7641291) in RPSA gene were genotyped by Illumina SnapShot method. Multiple logistic regression models were used for assessing the joint effects between tea consumption and SNPs on CRC. The subjects with rs2269349 CC genotype had a decreased risk for CRC (OR=0.60; 95%CI = 0.37-0.99), compared with TT/CT genotype after adjustment for covariates. A similar association of rs2269349 with rectal cancer was observed (OR=0.49; 95%CI=0.24-1.00). Further analyses indicated that this SNP could modify the protective effect of tea drinking on CRC. Among the subjects with rs2269349 TT/CT or rs2133579 AA/GA, there was a marginal significantly lower risk of CRC (OR and 95%CI: 0.63 and 0.39-1.01 for rs2269349; 0.64 and 0.40-1.02 for rs2133579) in tea-drinking subjects in comparison to non-tea-drinking subjects. Mutants in the RPSA gene might be associated with genetic susceptibility to CRC and influence the protective effect of tea consumption in the Chinese population.

• 응용통계연구
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• 제22권2호
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• pp.365-373
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• 2009

1990년대에 접어들면서 우리나라는 남아선호사상, 사회경제적 발전, 인구정책 등으로 인해 태아 성감별이나 불법 낙태가 사회적으로 확산되어 출생 성비의 불균형 현상이 초래되었다. 이러한 출생 성비의 불균형 현상을 모니터링 하기 위해서 시계열 분석 또는 지역 차이 분석 등의 많은 연구들이 있었지만 시간과 공판을 동시에 분석에 포함시키지 못했다는 단점이 있다. 본 연구는 시간과 지역성을 동시에 고려하여 출생 성비의 불균형 현상을 분석하였다. 행정구역상으로 구분된 234개의 구, 시, 군 지역에 대하여 2000년과 2001년도의 각 지역별 셋째 자녀 이상의 남녀 출생아 수 자료를 이질적 모집단을 가정하여 이항분포의 혼합모형에 적용시키는 방법을 제안한다. 혼합모형의 위치모수와 가중치, 상관계수 추정은 EM 알고리즘을 통해 수행되었고, ArcView GIS를 이용하여 지역의 이질성을 그림을 통해 표현하였다.

• Asian Journal of Business Environment
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• 제13권2호
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• pp.9-20
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• 2023

Purpose: This study aims to map the spatial distribution of poverty using nighttime light satellite images as a proxy indicator of economic activities and infrastructure distribution in D.I Yogyakarta, Indonesia. Research design, data, and methodology: This study uses official poverty statistics (National Socio-economic Survey (SUSENAS) and Poverty Database 2015) to compare satellite imagery's ability to identify poor urban areas in D.I Yogyakarta. National Socioeconomic Survey (SUSENAS), as poverty statistics at the macro level, uses expenditure to determine the poor in a region. Poverty Database 2015 (BDT 2015), as poverty statistics at the micro-level, uses asset ownership to determine the poor population in an area. Pearson correlation is used to identify the correlation among variables and construct a Support Vector Regression (SVR) model to estimate the poverty level at a granular level of 1 km x 1 km. Results: It is found that macro poverty level and moderate annual nighttime light intensity have a Pearson correlation of 74 percent. It is more significant than micro poverty, with the Pearson correlation being 49 percent in 2015. The SVR prediction model can achieve the root mean squared error (RMSE) of up to 8.48 percent on SUSENAS 2020 poverty data.Conclusion: Nighttime light satellite imagery data has potential benefits as alternative data to support regional poverty mapping, especially in urban areas. Using satellite imagery data is better at predicting regional poverty based on expenditure than asset ownership at the micro-level. Light intensity at night can better describe the use of electricity consumption for economic activities at night, which is captured in spending on electricity financing compared to asset ownership.

• 한국인구학
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• 제31권2호
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• pp.157-189
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• 2008

본 연구는 외국인과 이민자를 비롯한 인구 구성의 다원화 현상에 대한 통계적인 측면을 파악하기 위한 기초연구이다. 지속적으로 증가하는 다양성에 대한 사회적인 관심 속에서 단일 사례로서 프랑스의 외국인 관련 통계와 통계제도에 대해 인구센서스를 중심으로 고찰을 하였다. 구체적으로 인구센서스와 이민통계에 대한 통계적 정책 의사결정에 영향을 미치는 요인, 즉 역사적 배경, 법령, 주관 기관에 대해 알아보고 이민자와 외국인에 대한 통계작성 절차에 대해 고찰하였다. 아울러, 이민통계에 대한 국내 통계작성에 대한 시사점에 대해 논의하였다.

• 보건의료산업학회지
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• 제10권4호
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• pp.97-107
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• 2016

Objectives : This study aims to : (i) characterize and differentiate between two different periods of baby boomers, (ii) study the utilization of their health care services, and (iii) establish effective ways of providing better health service utilization and preventive policy strategies for upcoming and older generations. Methods : A multiple regression analysis using descriptive statistics, frequency analysis, and dummy variables was utilized to access the presence of correlations between socio-demographic factors and health care service utilization. Results : Medical insurance type, marital status, and chronic disease were factors that influenced health care service utilization. Furthermore, the factors that influenced individual medical expenses were cohabitation, inpatient days, and chronic disease. Conclusions : Primary findings and exploratory statistics revealed that there were strong correlations and interaction among some of the predictor variables. Because of the chronologically limited nature of the sample data set gathered in 2012, it would be helpful to continue to develop or research related constructs that may capture relationships more effectively among extended populations.

• Communications for Statistical Applications and Methods
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• 제30권4호
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• pp.389-402
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• 2023

Multivariate or clustered failure time data often occur in many medical, epidemiological, and socio-economic studies when survival data are collected from several research centers. If the data are periodically observed as in a longitudinal study, survival times are often subject to various types of interval-censoring, creating multivariate interval-censored data. Then, the event times of interest may be correlated among individuals who come from the same cluster. In this article, we propose a unified linear regression method for analyzing multivariate interval-censored data. We consider a semiparametric multivariate accelerated failure time model as a statistical analysis tool and develop a generalized Buckley-James method to make inferences by imputing interval-censored observations with their conditional mean values. Since the study population consists of several heterogeneous clusters, where the subjects in the same cluster may be related, we propose a generalized estimating equations approach to accommodate potential dependence in clusters. Our simulation results confirm that the proposed estimator is robust to misspecification of working covariance matrix and statistical efficiency can increase when the working covariance structure is close to the truth. The proposed method is applied to the dataset from a diabetic retinopathy study.

• 치위생과학회지
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• 제14권2호
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• pp.132-139
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• 2014

본 연구는 경상남도 통합 창원시와 진주시에 거주하는 20세 이상 70세 미만의 기혼 성인 남성들을 대상으로 주관적 치주건강상태가 성기능에 미치는 영향을 파악하고자 하였다. 설문대상자를 편의표본추출법으로 선정한 후 연구의 취지와 목적을 설명하고 최종 330부를 최종 분석에 이용하였다. 수집된 자료를 바탕으로 대상자의 인구사회학적 특성분포와 인구사회학적 특성에 따른 주관적 치주건강상태와 스트레스 및 성기능의 차이를 파악하고 주관적 치주건강상태와 스트레스 및 성기능간의 상관관계, 그리고 인구사회학적 특성 및 스트레스 요인을 보정한 후 주관적 치주건강상태가 성기능에 미치는 영향력을 평가한 결과는 다음과 같다. 대상자의 주관적 치주건강상태는 평균 2.17점이었다. 연령이 증가할수록, 학력수준이 낮을수록, 월수입이 낮을수록 그리고 전신질환이 없는 군의 주관적 치주건강상태 점수가 높아 통계적으로 유의한 차이가 있었다(p<0.05). 대상자의 스트레스 점수는 평균 15.68점이었고, 고려된 인구사회학적 특성에 따른 스트레스의 차이는 모두 통계적으로 유의하지 않았다(p>0.05). 또한 대상자의 성기능 점수는 평균 51.56점이었고, 연령이 '60세 이상'인 군, 학력수준이 '고졸이하'인 군, 월수입이 '300만원 미만'인 군, 현재 흡연군 그리고 전신질환이 있는 군의 성기능이 다른 군에 비해 낮아 통계적으로 유의한 차이가 있었다(p<0.05). 주관적 치주건강상태(r=-0.228)와 스트레스(r=-0.257)는 성기능과 유의한 음의 상관이 있어, 주관적 치주건강상태가 나쁠수록 그리고 스트레스가 많을수록 성기능이 낮은 경향이 있었다. 대상자의 인구사회학적 특성과 스트레스를 보정한 후 주관적 치주건강상태가 성기능에 미치는 영향력은 통계적으로 유의하여 주관적 치주건강상태가 1단위 나빠질수록 성기능도 0.889점 감소하였다(b=-0.889, p=0.030). 이상의 결과를 종합해 보면 주관적 치주건강상태와 성기능은 통계적으로 유의한 관련성이 있으므로, 치주상태를 효과적으로 관리할 수 있는 구강건강관리프로그램이 건강한 성생활을 유지하는 데 도움이 될 수 있겠다.

• 지역사회간호학회지
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• 제14권1호
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• pp.144-156
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• 2003

This study was conducted to investigate the relationship between the self-esteem, social support and health promoting lifestyle of the elderly in a community. The sample consisted of 147 elderly, and data were collected from September 1 to October 15, 2001. The instrument of this study was a structured questionnaire including Health Promoting Lifestyle (47 items), Social Support(18 items), Self-Esteem(10 items), Socio-demographic Characteristics. Analysis of the data was done by use of descriptive statistics, ANOVA, Pearson Correlation Coefficient. The results of this study are as follows: 1. The degrees of self-esteem of the elderly were mean score $25{\pm}2.98$ points, socio-demographic characteristics containing meaningful difference with self-esteem was not significant. 2. The degrees of social support by elderly were mean score $55.03{\pm}9.60$ points and social support according to the socio-demographic characteristics showed meaning difference in family structure $\ulcorner$with off spring$\lrcorner$ (F=8.50, p=.000), health status $\ulcorner$good$\lrcorner$ (t=2.19, p=.030), smoking $\ulcorner$below 1 packet daily$\lrcorner$ (F=4.88 p=.009). 3. The degrees of health enhancing lifestyle by elderly were mean score $113.61{\pm}20.12$ points and health enhancing lifestyle according to the socio-demographic characteristics showed meaning difference in education level $\ulcorner$middle school and above$\lrcorner$ (F=6.37 p=.002), occupation before retirement $\ulcorner$profession, technician, employee of company, education$\lrcorner$ (F=5.00, p=.003), health status $\ulcorner$good$\lrcorner$ (t=3.14, p=0.002), exercise $\ulcorner$weekly 2-3$\lrcorner$ (F=4.31, p=.006), drinking $\ulcorner$weekly 1$\lrcorner$ (F=2.74, p= .046). 4. The item mean score of personal relationship support field in health enhancing lifestyle were $2.90{\pm}.60$ points. item mean scores of exercise and nutrition were $2.26{\pm}.39$ points, item mean scores of stress managing field were $2.25{\pm}.49$ points, item mean scores of health responsible field were $2.14{\pm}.61$ points. 5. The relationship between self-esteem and health enhancing lifestyle revealed a significant correlation(r=.169. p=.041), but self-esteem and social support, showed no significant correlation, and health enhancing lifestyle and social support, revealed a significant correlation(r=.654, p=.001).

• 응용통계연구
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• 제23권5호
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• pp.857-870
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• 2010

국립축산과학원에서는 2006년 부터 2008년 까지 전국 소비자들을 대상으로 한우 거세우 표본 시료에 대한 관능 평가 조사를 실시하여 데이터를 수집하였으며 본 연구에서는 한우 관능 평가 데이터에 대해 사회 인구학적 요인과 한국 소비자들의 맛 평가에 대한 연관성을 탐구하고자 한다. 소비자 거주지역, 연령, 성별, 직업, 월수입과 쇠고기 부위를 설명변수로 맛등급 평가를 반응변수로 이항 다중 로지스틱 모형과 다항 다중 로지스틱 모형을 적합하고 회귀계수별 유의성 검정과 적합도 검정을 실시한다. 단계별 변수 선택으로 최종 모형을 선택하고 반응변수 범주에 대한 오즈비를 계산하여 맛등급과 설명변수들 간의 관련성을 파악한다. 또한 맛과 관련 있는 연속형 변수를 설명변수로 포함한 경우에 대해서도 이항 다중 로지스틱 모형과 다항 다중 로지스틱 모형을 적합하고 비교한다. 그 결과 거주 지역, 연령, 월수입과 쇠고기 부위 변수들이 선택되었으며 영남지역에서 맛에 대한 오즈가 큰 편이며 수입이 많고 연령이 높을수록 맛에 대한 오즈가 작은 편이었다. 요리법으로는 탕에 대한 구이의 오즈비가 큰 편이며 쇠고기 부위별로는 우둔에 비해서 등심이 다른 부위들 보다 맛에 대한 차이가 크다고 볼 수 있다. 연속형 변수로는 연도가 맛등급에 큰 영향을 미치는 변수로 나타났다.