• Title/Summary/Keyword: Cohort Analysis

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A Study on Nutrition and Health Evaluation of Osteoarthritis Elderly in Community (지역사회 골관절염 노인의 영양위험도 및 건강상태 평가)

  • Yang, Sook-Ja
    • Research in Community and Public Health Nursing
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    • v.17 no.2
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    • pp.186-194
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    • 2006
  • Purpose: This study was to evaluate the nutritional risk and health status of osteoarthritis elderly comparing with that of non-osteoarthritis elderly in urban areas. Methods: A cross-sectional analysis was conducted. The subjects were 132 osteoarthritis elderly, 154 non-osteoarthritis elderly. Data were collected by using a questionnaire including Nutritional Screening Initiatives, blood test and measurement of weight & height. Collected data were analyzed through descriptive statistics and $x^2-test$ by using SPSS 12.0. Results: The percentage of high nutritional risk among osteoarthritis elderly were higher than those among non-osteoarthritis elderly(p<0.01). When comparing the main nutritional risk factors such as 'I eat alone most of the time', 'I don't always have enough money to buy', 'I have tooth or mouth Problems that make it hard for me to eat' between osteoarthritis elderly and non-osteoarthritis elderly, significantly differences were found(p<0.05). There were no statistically significant difference in ADL, BMI, Lymphocyte, Hemoglobin, Hematocrit, Albumin and total-Cholesterol between osteoarthritis elderly and non-osteoarthritis elderly. Conclusion: On the basis of this study, it is necessary to figure out the main factors of nutritional risk in arthritis elderly through the cohort study for effective prevention & control in nutritional risk.

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Survival Rates of Breast Cancer: A Hospital-Based Study from Northeast of Thailand

  • Poum, Amornsak;Kamsa-Ard, Supot;Promthet, Supannee
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.3
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    • pp.791-794
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    • 2012
  • A retrospective cohort study was carried out with 340 female breast cancer at a teaching university in northeast of Thailand recruited and followed-up until the end of 2006. Survival probabilities were estimated using the Kaplan-Meier method. 161 cases were alive after five years and 58 patients were lost to follow-up. The overall observed survival rates at 1, 3 and 5 years were 83.3%, 59.9% and 42.9%, respectively. When analysis was conducted for stage combined into 2 groups, early (stage I, II and unknown) and late (stage III and IV), the 5-year survival rate for early stage (60%; 95%CI: 0.51-0.67), was higher than for late stage (27%; 95%CI: 0.19-0.34) with high statistical significance (p<0.001). The hazard ratio of patients with stage IV was 11.6 times greater than for stage I (p=0.03). The findings indicate that the different stages of breast cancer markedly effect the overall survival rate.

Effects of Antenatal Depression and Antenatal Characteristics of Pregnant Women on Birth Outcomes: A Prospective Cohort Study (산전우울과 임부의 산전특성이 출산 결과에 미치는 영향: 전향적 코호트 연구)

  • Kim, Hae-Won;Jung, Yeon-Yi
    • Journal of Korean Academy of Nursing
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    • v.42 no.4
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    • pp.477-485
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    • 2012
  • Purpose: This study was done to evaluate the effects of antenatal depression on birth outcomes. Methods: The participants were 255 pregnant women who were followed in a prospective study. Of these, 197 cases were examined included birth weight, Apgar scores at 5 minute, premature contraction, complication of labor, delivery types and laboratory data. Descriptive statistics, ANOVA, Chi square test of linear by linear association, Kruskal Wallis test, Relative Risk, univariate and adjusted multiple logistic regression were used for data analysis with SPSS/Win. Results: Level of antenatal depression was associated with low birth weight ($x^2$=7.69, p=.010). High risk pregnancy was a predictor of low birth weight (OR=6.98 [1.21-40.30]) and baby's weight (OR=2.12, [1.05-4.28]). Prepregnancy body mass index (BMI) was a predictor of complications in labor (OR=3.59, [1.03-12.48]). But there were no significant effects of antenatal depression on other birth outcomes. Conclusion: The results of this study indicate that women with antenatal depression, high risk pregnancy, prepregnancy $BMI{\geq}23kg/M^2$ should be monitored and managed to ensure favorable birth outcomes.

Coffee Consumption as a Risk Factor of Ischemic Cerebral Infarction in Koreans

  • Sun, Seung-Ho
    • The Journal of Korean Medicine
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    • v.28 no.4
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    • pp.42-51
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    • 2007
  • Background and Purpose : To prevent ischemic cerebral infarction, it is very important to reduce risk factors which might cause stroke. However, the relationship of coffee consumption with ischemic cerebral infarction still remains unclear. The purpose of this study was to investigate the effects of coffee consumption on the risk of ischemic cerebral infarction in Koreans. Methods : A case-control study was conducted from April 1, 2001 to July 31, 2004. Cases (n=435) of first incident ischemic cerebral infarction were enrolled and were mostly matched by age to stroke-free hospital controls (n=407). All subjects were interviewed, examined and had anthropometric measurements by using an organized questionnaire. The coffee consumption was classified by the average frequency of intake, being none, 1 cup/day, 2-4 cups/day, more than 5 cups/day. Odds ratios (ORs) of ischemic cerebral infarction were proved multivariate analysis after adjustment for demographic factors, diet factors, and vascular risk factors. Results : When adjusted for sex, age, and other factors, coffee consumption and stroke do not have a significant association. (${\leq}$ cup/day OR=1.035, 95% CI=0.880-2.756; 2-4cups/day OR=1.452, 95% CI=0.864-2.440; ${\geq}$ 5 cups/day OR=1.557, 95% CI=0.705-3.435) Conclusions : In this study, we conclude that coffee consumption is not an important risk factor of ischemic cerebral infarction in Koreans. Prospective and cohort study on the relation between coffee consumption and the possibility of inducing ischemic cerebral infarctions in Koreans will be required in the future.

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Socioeconomic Status and Number of Children Among Korean Women: The Healthy Twin Study

  • Kim, Jinseob;Sung, Joohon
    • Journal of Preventive Medicine and Public Health
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    • v.46 no.1
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    • pp.50-60
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    • 2013
  • Objectives: This study aimed to evaluate whether the birth rate is associated with socioeconomic status in the women of the Republic of Korea, where the birth rate is rapidly decreasing. Methods: This study included 732 females from the Healthy Twin Study, a family-twin cohort. The participants were classified into 3 socioeconomic groups according to their average income, education, and occupation. The association between socioeconomic status and number of children was assessed using gamma regression analysis with a generalized linear mixed model, adjusting for the age group, smoking/alcohol status, and family relationships. Results: The group with the highest education level had significantly fewer children compared with the group with the lowest education level (p=0.004). However, no significant associations were found according to household income level. The non-manual labor group had significantly fewer children compared with those working as homemakers (p=0.008). Conclusions: This study aimed to explain the causal relationship between socioeconomic status and number of children. Associations between some socioeconomic status and number of children were found in Korea.

The associations between dietary behavior and subjective measurements of serious dental diseases in nursing home staff (일부 병원종사자의 식행동과 주관적 중대 구강병과의 연관성)

  • Shim, Youn-Soo;An, So-Youn;Park, So-Young
    • Journal of Korean society of Dental Hygiene
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    • v.13 no.3
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    • pp.377-385
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    • 2013
  • Objectives : The objective of this study is to determine the associations between dietary behaviour and subjective measurements of dental caries and periodontal disease in a cohort of nursing home staff. Methods : A self-reported survey was carried out in 280 nursing home staff in Jeollabukdo Province, Korea. The collected data were analyzed using SPSS Version 19.0 program. Multiple regression analysis was conducted to examine the effects of dietary behavior and food intake on subjective measurements of the two serious dental diseases. Results : The irregular meal tended to increase dietary imbalance and periodontal diseases in the nursing staff. For example, it had influences on the imbalance of sugar, vegetable, and safood intake. Conclusions : It is important to take regular meal because irregular eating behavior tended to increase dietary imbalance and periodontal diseases in the nursing staff.

Cancer Incidence by Occupation in Korea: Longitudinal Analysis of a Nationwide Cohort

  • Lee, Hye-Eun;Zaitsu, Masayoshi;Kim, Eun-A;Kawachi, Ichiro
    • Safety and Health at Work
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    • v.11 no.1
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    • pp.41-49
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    • 2020
  • Background: We performed this study to investigate the inequalities in site-specific cancer incidences among workers across different occupations in Korea. Methods: Subjects included members of the national employment insurance. Incident cancers among 8,744,603 workers were followed from 1995 to 2007. Occupational groups were classified according to the Korean Standard Occupational Classification. Age-standardized incidence rate ratios were calculated. Results: We found that men in service/sales and blue-collar occupations had elevated rates of esophageal, liver, laryngeal, and lung cancer. Among women, service/sales workers had elevated incidences of cervical cancer. Male prostate cancer, female breast, corpus uteri, and ovarian cancers, as well as male and female colorectal, kidney, and thyroid cancer showed lower incidences among workers in lower socioeconomic occupations. Conclusions: Substantial differences in cancer incidences were found depending on occupation reflecting socioeconomic position, in the Korean working population. Cancer prevention policy should focus on addressing these socioeconomic inequalities.

CGHscape: A Software Framework for the Detection and Visualization of Copy Number Alterations

  • Jeong, Yong-Bok;Kim, Tae-Min;Chung, Yeun-Jun
    • Genomics & Informatics
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    • v.6 no.3
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    • pp.126-129
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    • 2008
  • The robust identification and comprehensive profiling of copy number alterations (CNAs) is highly challenging. The amount of data obtained from high-throughput technologies such as array-based comparative genomic hybridization is often too large and it is required to develop a comprehensive and versatile tool for the detection and visualization of CNAs in a genome-wide scale. With this respective, we introduce a software framework, CGHscape that was originally developed to explore the CNAs for the study of copy number variation (CNV) or tumor biology. As a standalone program, CGHscape can be easily installed and run in Microsoft Windows platform. With a user-friendly interface, CGHscape provides a method for data smoothing to cope with the intrinsic noise of array data and CNA detection based on SW-ARRAY algorithm. The analysis results can be demonstrated as log2 plots for individual chromosomes or genomic distribution of identified CNAs. With extended applicability, CGHscape can be used for the initial screening and visualization of CNAs facilitating the cataloguing and characterizing chromosomal alterations of a cohort of samples.

Association Analysis between Genes' Variants for Regulating Mitochondrial Dynamics and Fasting Blood Glucose Level

  • Jung, Dongju;Jin, Hyun-Seok
    • Biomedical Science Letters
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    • v.22 no.3
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    • pp.107-114
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    • 2016
  • Maintenance of fasting blood glucose levels is important for glucose homeostasis. Disruption of feedback mechanisms are a major reason for elevations of glucose level in blood, which is a risk factor for type 2 diabetes mellitus that is mainly caused by malfunction of pancreatic beta-cell and insulin. The fasting blood glucose level has been known to be influenced by genetic and environmental factors. Mitochondria have many functions for cell survival and death: glucose metabolism, fatty acid oxidation, ATP generation, reactive oxygen species (ROS) metabolism, calcium handling, and apoptosis regulation. In addition to these functions, mitochondria change their morphology dynamically in response to multiple signals resulting in fusion and fission. In this study, we aimed to examine association between fasting blood glucose levels and variants of the genes that are reported to have functions in mitochondrial dynamics, fusion and fission, using a cohort study. A total 416 SNPs from 36 mitochondrial dynamics genes were selected to analyze the quantitative association with fasting glucose level. Among the 416 SNPs, 4 SNPs of PRKACB, 13 SNPs of PPP3CA, 6 SNPs of PARK2, and 3 SNPs of GDAP1 were significantly associated. In this study, we were able to confirm an association of mitochondrial dynamics genes with glucose levels. To our knowledge our study is the first to identify specific SNPs related to fasting blood glucose level.

Five Year's Follow-up of the Cardiovascular Disease Risk Factors among the Low Level Organic Solvent Exposure Workers (저농도 유기용제 노출 사업장 근로자의 심혈관질환 위험인자 변화 추적(2008~2012))

  • Kim, Mi-Ae
    • Korean Journal of Occupational Health Nursing
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    • v.24 no.2
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    • pp.67-75
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    • 2015
  • Purpose: The objective of the present study was to evaluate the effects of occupational exposure to low dose organic solvents on the prevalence of cardiovascular risk factors. Methods: Study design was retrospective cohort study subjected on 191 exposures and 118 controls working in a petrochemical manufacture company. The eight indicators related to CVD risk were followed up for five years from 2008 to 2012. The risk level was compared during the follow up years and subject's characteristics, and the change of risk level were analyzed with repeated measures ANOVA and multiple logistic regression analysis. Results: At the start year 2008, the rate over cutoff value (ROCV) of BS (p<.001) and mean systolic BP (p=.017) were higher in organic solvent exposure group and the others showed no difference. And by the subject's characteristics, odds ratio of the ROCV of BS were higher in organic solvent exposure group and work shift group as 2.51 and 3.07. Comparing the results in 2012 to those of 2008, cardiovascular disease risk in organic solvent exposure group was about 1.5 times higher than that of in the control group. Conclusion: Gradual increase in the CVD risk was identified in organic solvent exposure group. However, the risk might be influenced by shift work and bad behaviors rather than organic solvent exposure.