• Title/Summary/Keyword: Cohort Analysis

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Citrus Fruits Intake and Prostate Cancer Risk: A Quantitative Systematic Review

  • Bae, Jong-Myon;Lee, Eun-Ja;Guyatt, Gordon
    • Journal of Preventive Medicine and Public Health
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    • v.41 no.3
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    • pp.159-164
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    • 2008
  • Objectives : The purpose of this systematic review was to investigate the association between dietary intake of citrus fruits and prostate cancer risk. Methods : Authors searched electronic databases and the reference lists of publications of diet and prostate cancer studies until August 2007. All of the epidemiological studies that obtained individual data on dietary intake of citrus fruits and presented risk estimates of the association between intake of citrus fruits and risk of prostate cancer were identified and included. Using general variance-based methods, study-specific odds ratios (OR)/ relative risk (RR) and associated confidence interval (CI)/ standard error (SE) for highest versus lowest intake of citrus fruits level were extracted from each paper. Results : Eleven articles including six case-control studies, one nested case-control study and four cohort studies, proved eligible. Overall summary OR using random effect model did not show an association in risk of prostate caner with intake of citrus fruits (summary OR=1.03, 95% CI=0.89-1.19) with large heterogeneity across studies that we were unable to explain ($I^2$=67.88%). The summary ORs in case-control studies and cohort studies were 1.10 (95% CI=0.97-1.22) and 1.05 (95% CI=0.96-1.14), respectively. Conclusions : Pooled results from observational studies did not show an association between intake of citrus fruits and the risk of prostate cancer, although results vary substantially across studies.

Relationship between Type A Behavior Pattern and Diabetes According to Sasang Constitution (사상체질에서 A형 행동유형과 당뇨병에 관한 연구)

  • Lee, Sang-Jun;Yoo, Jun-Sang;Koh, Sang-Baek;Park, Jong-Ku
    • Journal of Sasang Constitutional Medicine
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    • v.21 no.1
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    • pp.197-216
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    • 2009
  • 1. Objectives This study is to investigate the relationship between type A behavior pattern(TABP) and diabetes according to Sasang Constitution. 2. Methods 162 persons(81 IGM persons vs 81 normal persons) out of 666 persons, more than 40 years old, who participated the community based cohort in Wonju City of South Korea from July 2nd to August 30th in 2006, were randomly selected and analyzed. Framingham Type A score, Social Support index, glucose related laboratory results were measured and analyzed according to Sasang Constitution. 3. Results Soeumin in IGM group had significantly high scores in FTA scales compared with Soyangin and Taeeumin, bur in female IGM group and normal group there was no significant difference in FTA scales and TABP frequency by Sasang Constitution. There was no significant difference in social support index in IGM and normal group by Sasang Constitution. There was no significant difference in glucose-related values between TABP/TBBP in IGM group and normal group. Soyangin in female IGM group had significantly high values in insulin(fasting) and HOMA-IR in TABP group, Soeumin group had significantly high values in FBS in TABP group. According to binary logistic regression analysis for IGM, Sasang Constitution was a significant risk factor and the ORs of Taeeumin and Soyangin were significantly higher than that of Soeumin. Social Support index was significantly higher only in female group. 4. Conclusions Adequate questionnaire of TABP for our country or a research of another subjects are needed. And Sasang Constitution is thought to be the reasonable intervention to control diabetes in terms of prevention, treatment and regimen.

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Effects of the Continuity of Care on Hospital Utilization : Convergence A Propensity Score Matching Analysis (진료지속성이 의료이용에 미치는 영향 : 융복합 성향점수매칭 방법 적용)

  • Ahn, Lee-Su
    • Journal of Digital Convergence
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    • v.13 no.9
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    • pp.323-332
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    • 2015
  • This paper examines the level of the primary care continuity for patients with high blood pressure and the effects of the primary care continuity on their convergence health outcomes. We conducted a retrospective cohort study. A total of 315,791 patients who had received new diagnoses of hypertension. We determined standard indices of continuity of care-MFPC, MMCI, and COC and evaluated their association with study outcomes over three years of follow-up. Outcome measures included hospitalization and emergency room visits. The result of the primary care continuity levels and hazard ratios of health outcome showed that, comparing continuity group, non-continuity group had higher rates of hospitalization by 1.655(95% CI: 1.547-1.771) and emergency room visits by 1.669(95% CI: 1.465-1.903). This paper argues that medical costs of chronic diseases will reduce if low continuity of care turns into high continuity of care.

Association of dietary patterns with overweight risk and all-cause mortality in children with cancer

  • So, Eunjin;Kim, Jeeyeon;Joo, Sehwa;Lee, Jisun;Joung, Hyojee
    • Nutrition Research and Practice
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    • v.11 no.6
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    • pp.492-499
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    • 2017
  • BACKGROUND/OBJECTIVES: This study aimed to investigate the association of dietary patterns with overweight risk and all-cause mortality in pediatric cancer patients. SUBJECTS/METHODS: Prospective cohort study was undertaken; 83 cancer patients admitted to the pediatric cancer ward at a university hospital in Seoul were included and followed for obesity and death over 24 months. Food consumption data were collected from patients using validated meal order sheets for breakfast, lunch, and dinner at the pediatric cancer ward over 3 days. Using principal component analysis, three dietary patterns were derived from 29 food groups. RESULTS: Eighteen deaths occurred among the patient cohort during the follow-up period. The "spicy & fried meat and fish" dietary pattern was positively associated with overweight risk at both baseline [odds ratio (OR) = 4.396, 95% confidence interval (CI) = 1.111-17.385, P for trend = 0.023] and after 6 months (OR = 4.088, 95% CI = 1.122-14.896, P for trend = 0.025) as well as all-cause mortality (hazard ratios = 5.124, 95% CI = 1.080-24.320, P for trend = 0.042), when comparing the highest and lowest tertiles after adjusting for covariates. The "fish, egg, meat, and fruits & vegetables" dietary pattern was associated with lower overweight risk after 24 months (OR = 0.157, 95% CI = 0.046-0.982, P for trend = 0.084). CONCLUSION: The results imply that dietary patterns might be associated with weight gain and premature death among pediatric cancer patients.

Association of Fatty Acid Ethyl Esters in Meconium of Neonates with Growth Deficits at Birth: a Prospective, Single-Centre Cohort Study

  • Lee, Hyun-Seung;Kim, Yeon Hee;Kwak, Ho-Seok;Han, Jung-Yeol;Jo, Sun-Jin;Lee, Hae Kook
    • Journal of Korean Medical Science
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    • v.33 no.50
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    • pp.318.1-318.10
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    • 2018
  • Background: In this prospective cohort study, we investigated the association between fatty acid ethyl esters (FAEEs) in meconium as biomarkers of prenatal ethanol exposure and growth deficits, as birth outcomes, that constitute several of the key cardinal features of fetal alcohol syndrome. Methods: A total of 157 meconium samples were collected from enrolled infants within 24 hours of birth, and nine FAEEs were quantified using liquid chromatography/tandem mass spectrometry. The relationships between cumulative concentrations of nine species of FAEEs in meconium and birth parameters of growth (age-sex-specific centiles of head circumference [HC], weight, and length) and respective and combined birth outcomes of growth deficits (HC ${\leq}10th$ centile, weight ${\leq}10th$ centile, and length ${\leq}10th$ centile) were determined. Results: Multivariate logistic regression analysis demonstrated that higher cumulative concentrations of meconium FAEEs correlated with elevated risks for HC and length, both, 10th percentile or less (adjusted odds ratio [aOR], 2.94; 95% confidence interval [CI], 1.12-7.74; P = 0.029) and HC and weight and length, all of them, 10th percentile or less (aOR, 3.27; 95% CI, 1.12-9.59; P = 0.031). Conclusion: The elevated cumulative FAEEs in meconium were associated with combined growth deficits at birth, specifically HC and length, both, 10th percentile or less, which might be correlated with detrimental alcohol effects on fetal brain and bone development, suggesting a plausible alcohol-specific pattern of intrauterine growth restriction.

Lifestyle factors related to glucose control for diabetes management strategies: Nested case control design using KNHANES data (당뇨병 관리전략을 위한 혈당조절 관련 생활습관 요인: 국민건강영양조사 활용 코호트내 환자-대조군 연구)

  • Kim, Yunjung;Cho, Eunhee
    • Journal of the Korea Convergence Society
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    • v.10 no.11
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    • pp.501-510
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    • 2019
  • This study aimed to find health related lifestyle factors that influence glycemic control for diabetes mellitus (DM) management strategies. This study used nested case-control design with matching variables that were not controlled by individuals such as age, sex, insulin or oral hypoglycemic agent (OHA) use, disease duration, education level and household income. This study analyzed 983 subjects with type 2 DM who enrolled in the $7^{th}$ (2016-2017) Korean National Health and Nutrition Examination Survey (KNHANES). The target HbA1c level of controlled glucose was defined as less than 6.5%, and 289 (30%) were achieved. Conditional multivariable logistic regression analysis was performed to find self-control factors associated with HbA1c levels. The results statistically significant for variables such as duration of diabetes, insulin or OHA use in overall cohort and body mass index (BMI), smoking and fundus Examination in matched cohort. These results are expected to provide as evidence for the intensive care criteria(disease duration, drug use) and lifestyle management strategy(BMI, smoking, fundus examination).

A Prospective Study on Ginseng Intake and Cancer for Population -Preliminary Report- (인삼복용과 암에 관한 전향성 역학적 연구 - 1차 보고 -)

  • Yun, Taik-Koo;Choi, Soo-Yong;Lee, Yun-Sil
    • Journal of Ginseng Research
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    • v.19 no.2
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    • pp.87-92
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    • 1995
  • We conducted a prospective cohort study to evaluate the preventive effect of ginseng on the development of cancer in the population over 40 years old residing in Kangwha-eup from August 1987 to December 1992. Alnong 4, 634 persons (2, 362 men, 2, 272 women), 335 (7.6%) persons had died. Cancer accounted for 79 (22.8%) of the total death. Of 4, 634 persons eligible for analysis, 70.475 (3, 263) were ginseng intakes. Ginseng intakes had a decreased risk (RR=0.48, 95% Cl : 0.34~0.67) compared with non-intakes. The relative risk of cancer according to the kind of ginseng was 0.23 (95% Cl : 0.08~ 0.63) for fresh ginseng extract intakes. There was a decrease in risk with rising the frequency of ginseng intake, showing statistically significant dose-response relationship. The longer the duration of ginseng intake or the greater the total number of ginseng consumed, the lower the risk. Newly diagnosed cancer cases have been identified: 42 stomach, 24 lung, 14 liver and 57 at other sites. The relative risks of ginseng intakes were 0.34 (95% Cl 0.19~0.60) in gastric cancer and 0.27 (95% Cl : 0.12-0.60) in lung cancer. Among ginseng preparations, fresh ginseng intakes were significantly associated with the decreased risk of gastric cancer (RR: 0.19, 95% Cl : 0.04~0.98). These results strongly revealed that Panax Ginseng C.A. Meyer (Korean ginseng) has preventive effect against cancer.

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Differences in Nutrient Intake with Homemade versus Chef-Prepared Specific Carbohydrate Diet Therapy in Inflammatory Bowel Disease: Insights into Dietary Research

  • Morrison, Alex;Braly, Kimberly;Singh, Namita;Suskind, David L.;Lee, Dale
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.24 no.5
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    • pp.432-442
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    • 2021
  • Purpose: The aim of this study was to evaluate the nutrient content consumed by children and adolescents on home-prepared versus chef-prepared specific carbohydrate diets (SCD) as therapy for inflammatory bowel disease (IBD). Methods: Dietary intake of two cohorts with active IBD initiating the SCD over 12 weeks was assessed. The home-prepared cohort received detailed guidance from dietitians on implementation of the SCD. The chef in the other cohort was knowledgeable in the SCD and prepared meals from a fixed set of recipes. Data from 3-day diet diaries at 4 different time points were collected. US Recommended Daily Allowances (RDA) were calculated for macronutrients, vitamins, and minerals. Results: Eight participants on the homemade SCD and 5 participants on the chef-prepared SCD were included in analysis. Mean % RDA for energy intake was 115% and 87% for homemade and chef-prepared groups (p<0.01). Mean % RDA for protein intake was 337% for homemade SCD and 216% for chef-prepared SCD (p<0.01). The homemade SCD group had higher mean % RDA values for vitamin A and iron, while the chef-prepared SCD group had higher intake of vitamins B1, B2, D, phosphorus and zinc (p<0.01 for all). Conclusion: The SCD implemented homemade versus chef-prepared can result in significantly different intake of nutrients and this may influence efficacy of this dietary therapy. Meal preparation dynamics and the motivation of families who pursue dietary treatment may play an important role on the foods consumed and the outcomes on dietary therapy with the SCD.

The using practices of antipsychotics for people with intellectual disabilities in Japan (일본의 지적장애인에 대한 항정신약의 사용 실태)

  • Kim, Mi-SuK
    • Journal of the Korea Convergence Society
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    • v.9 no.12
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    • pp.207-216
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    • 2018
  • In Korea, there has been no national research on the use of antipsychotics for people with intellectual disabilities(I.D); therefore, it is difficult to identify the problems or to find solutions for problems in using antipsychotics. So, the purpose of this study analyze research findings on the use of antipsychotics for people with I.D in Japan. This research method compared and analyzed the results of research published in the journal J-STAGE and Medical Online and studied a cohort results using data. The results of the analysis are as follows. First, many antipsychotic drugs are prescribed to people with I.D, but it is difficult to accurately assess the effectiveness of the treatments. Second, it is not easy to detect side effects. Third, the potential side effects of drug interactions have been raised. The results was emphasized the need of research that accurately evaluate the drugs in survey of actual situation to ensure more safe use of antipsychotics to peoples with I.D in Korea.

Cancer Risk in Patients with Type 2 Diabetes on Antidiabetic Monotherapy: A Population Based Cohort Study Using National Insurance Health Service Database (혈당강하제 단독요법 투여 당뇨병환자에서 암발생률 평가: 후향적 코호트 연구)

  • Jung, Han Yeong;Lee, Sukhyang
    • Korean Journal of Clinical Pharmacy
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    • v.29 no.3
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    • pp.186-192
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    • 2019
  • Background: Diabetes is associated with cancer risk in the aging population. Observational studies have indicated the beneficial effects of metformin against breast cancer, making studies on the anticancer potential of antidiabetic drugs worthwhile. This study investigated cancer incidence in patients on antidiabetic monotherapy. Methods: Using National Health Insurance Service data (2002-2013), a retrospective cohort study that included type 2 diabetes mellitus (T2DM) patients was conducted. Study subjects were enrolled if they were ${\geq}30$ years old, on monotherapy for diabetes, and cancer-free. They were followed up for cancer occurrence or death, until December 31st, 2013. A Cox proportional hazard model analysis was conducted between metformin and sulfonylurea (including meglitinide) users, to determine cancer risk, with adjustment for age, gender, comorbidity index, dyslipidemia, hypertension, and T2DM duration. Results: The number of antidiabetic monotherapy-treated T2DM patients without a history of cancer was 9,554 (metformin, n = 5,825; sulfonylurea, n = 3,225; others, n = 504). During the follow-up period (mean, 2.04; IQR, 3.18 years), the cancer incidence rate was 5.48/100 and 5.45/100 patient-years for metformin and sulfonylurea, respectively. The hazard ratio (HR) for risk of cancer incidence in the metformin group was 0.74 (95% confidence interval [CI], 0.66-0.83; p < 0.0001), compared with sulfonylurea. Additionally, the HRs for risks of lung, liver, and stomach cancer were respectively 0.46 (95% CI, 0.31-0.66; p < 0.0001), 0.41 (95% CI, 0.31-0.54; p < 0.0001), and 0.51 (95% CI, 0.35-0.73; p = 0.0003). Conclusion: Antidiabetic therapy with metformin reduces cancer risk by 26%, specifically for lung, liver, and stomach cancer.