• Asian Pacific Journal of Cancer Prevention
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• 제14권9호
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• pp.5219-5223
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• 2013

The number of axillary lymph nodes involved and retrieved are important prognostic factors in breast cancer. The purpose of our study was to investigate whether the lymph node ratio (LNR) is a better prognostic factor in predicting disease-free survival (DFS) for breast cancer patients as compared with pN staging. The analysis was based on 804 breast cancer patients who had underwent axillary lymph node dissection between 1999 and 2008 in Sun Yat-Sen University Cancer Center. Optimal cutoff points of LNR were calculated using X-tile software and validated by bootstrapping. Patients were then divided into three groups (low-, intermediate-, and high-risk) according to the cutoff points. Predicting risk factors for relapse were performed according to Cox proportional hazards analysis. DFS was estimated using the Kaplan-Meier method and compared by the log-rank test. The 5-year DFS rate decreased significantly with increasing LNRs and pN. Univariate analysis found that the pT, pN, LNR, molecule type, HER2, pTNM stage and radiotherapy well classified patients with significantly different prognosis. By multivariate analysis, only LNR classification was retained as an independent prognostic factor. Furthermore, there was a significant prognostic difference among different LNR categories for pN2 category, but no apparent prognostic difference was seen between different pN categories in any LNR category. Therefore, LNR rather than pN staging is preferable in predicting DFS in node positive breast cancer patients, and routine clinical decision-making should take the LNR into consideration.

• Journal of Preventive Medicine and Public Health
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• 제42권3호
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• pp.160-164
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• 2009

Objectives : The objective of this study was to determine the relationship between past smoking and the risk factors for metabolic syndrome. Methods : From January 2007 to December 2007, a total of 3,916 over thirty years old male health screen examinees were divided into the nonsmoking, smoking, ex-smoking groups. The diagnosis of metabolic syndrome was based on the criteria of the NCEP ATP III(Executive Summary of The Third Report of The National Cholesterol Education Program). Metabolic syndrome was defined as the presence of three or more of the following: a blood pressure $\geq$ 130/85 mmHg, a fasting glucose level $\geq$ 110 mg/dL, a HDL-C (High Density Lipoprotein Cholesterol) level < 40 mg/dL, a triglyceride level $\geq$ 150 mg/dL and, a waist circumference men $\geq$ 102 cm, but a waist to hip ratio > 0.90 was used as a surrogate for the waist circumference. Results : After adjustment for age, alcohol consumption and, exercise in the smokers, for the ex-smokers compared with the nonsmokers, the odds ratio (OR) of a lower HDL cholesterol level (<40 mg/dL) was 1.29 (95% CI=1.03-1.61) in the smokers, the ORs of a higher triglyceride level were 1.35 (95% CI=1.09-1.66) in the ex-smokers and, 2.12 (95% CI=1.75-2.57) in the smokers, and the OR of a waist to hip ratio was 1.25 (95% CI=1.03-1.52) in the ex-smokers. When there were over three components of metabolic syndrome in the ex-smokers and smokers as compared with the nonsmokers, the odds ratio against the risk of metabolic syndrome were 2.39 (95% CI=1.00-6.63) and 2.37 (95% CI=1.02-6.46), respectively. Conclusions : The present study suggested that there is an association of smoking with metabolic syndrome in men.

• 지역사회간호학회지
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• 제6권2호
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• pp.319-334
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• 1995

To investigate the risk factors of low back pain, an epidemiological study was carried out among male workers aged 20-55 employed in an automobile industry in Korea during the time period from February 1993 to October 1995. Workers participated to this study were divided into low back pain group(LBP) and control group, according to the self-reports by written questionnaires. General characteristics, medical history, work related factors, fatigue, and MMPI were compared between two groups. To clarify the relationship between job related low back pain and radiologic features of lumbar spine, radiographic study was carried out. The resultant data were processed for $x^2-test$, t-test, and stepwise logistic regression to confirm the adjusted odds ratios. The results were as follows: 1. History of back disease, lifting and carrying work, excessive physical fatigue, and weakend back strength of individual workers were directly associated with low back pain. Odd ratios of these 4 risk factors of low back pain were 5.07, 3.34, 1.49, and 1.22 respectively. 2. The frequency of low back pain history was significantly higher in LBP group. 3. Back muscle strength of lumbar spine of LBP group were significantly lower than control group. 4. The workers in LBP group revealed high fatigue symptoms. 5. In MMPI test LBP group showed higher scales in hypochondriasis, depression, hysteria, psychopathic deviate, paranoia, psychasthenia, schizophrenia, and hypomania. 6. LBP group were more frequently involved in lifting and carrying, working in awkward position, bending, twisting and using lower extremities. 7. LBP group were exposed more to vibration during working. 8. In the Analysis of radiographs of lumbar spine, Jacob's line not crossing fourth lumhar disc space, transitional vertebrae and lumbar displacement more than 4.4mm in standing lateral view were more frequently observed in LBP group than control group. Through these results, it is concluded that identification of previous history of back problem, change of work or working environment for workers with previous back problem and measures to relieve both physical and psychological fatigue of the workers are required for optimal management of work-related back problems among workers. In the present study, several results were different from the previous reports: Jacob's line not corssing fourth lumbar disc space, lumbarization, and vertebral slipping (spondylolisthesis) more than 4.4mm are related to backache. Meticulous studies are required to elucidate the difference.

• 대한한의진단학회지
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• 제14권2호
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• pp.85-100
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• 2010

Objectives: The purpose of this study was to evaluate diagnostic value of Transcranial Doppler Ultrasound about risk factor of stroke by comparing blood flow between patients with metabolic syndrome(MS group) and Normal group. Methods: 62 metabolic syndrome patients and 106 healthy adults were selected who had no cerebrovascular diseases, cardiovascular diseases and other systemic diseases. We measured the mean velocity(Vm), peak systolic velocity(Vs) and pulsatility index(PI) of MCA, ACA, PCA, VA, ICA in two groups using TCD. All subjects were divided by gender and age. Results: In comparing Ms group with normal group, Vm in the MCA, ACA, PCA, ICA and Vs in the MCA, ICA were lower in MS group. In all vessels, PI of MS group were higher than that of Normal group. In all vessels, Vm and Vs revealed negative correlation with age and PI revealed positive correlation with age. In 20-39 year olds, there was decrease in the Vs and Vm and increase of PI of MS group in comparison with normal group. There was significant difference in the Vm of PCA, ICA, Vs of MCA, PCA, ICA and PI of MCA, ACA. In 40-59 year olds, Vm in the MCA, ACA, ICA and Vs in the MCA, ACA were lower in MS group. PI in the MCA, ACA, PCA, ICA were higher in MS group. In 60-79 year olds, Vm of MCA, PCA, ICA was decreased in MS group than Normal group with no statistical signification. Vs in the MCA was lower and PI in the PCA was higher in MS group. In male, Vm of PCA and Vs of MCA were lower and PI of MCA, ACA, PCA, ICA were higher in MS group. In female, Vm of MCA, PCA, ICA and Vs of MCA, ICA were lower and PI of ACA, PCA, VA, ICA were higher in MS group. Conclusions: The significant difference in Vm, Vs, PI between MS group and normal group suggests hemodynamic disorder. Screening and prognosing high risk group can be done through TCD and this can be used to prevent stroke. More detailed study will be needed.

• 한국학교ㆍ지역보건교육학회지
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• 제15권1호
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• pp.105-119
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• 2014

Objectives: This study investigates the factors influencing values on life-respect among middle school students. Methods: The participants in this study were 126 students from S middle school and Y middle school, both located in Gyeongnam province. The experimental group consisted of 40 students from S middle school, Control group-Iconsisted of 39 students from S middle school, and Control group-II consisted of 47 students from Y middle school. The experimental group was provided with 12 incidences of the life-respect education program from April 1st to June 29th. One period took 45 minutes and proceeded according to a structure of introduction, development, and consolidation. The experimental group received a life-respect education program, Control group-I received health teaching, but Control group-II didn't receive any special education except what was regularly part of their curriculum. The content of the life-respect education program included the following topics: value of life-respect, respect for human life and ethics, life-respect campaign, having a healthy mind, suicide prevention, dealing with crisis, prevention of school violence, abortion and life-respect, social weak minority consideration, death, brain death, euthanasia, life cycle and task, and forest activities. Questionnaires were administered as pre and post-tests which consisted of questions regarding death anxiety, suicide risk, and values on life-respect. The pre and post-tests were analyzed with t-tests, paired t-tests, ANOVAs, and factor analyses using SPSS 18.0. Results: 1. There was a statistically significant increase in the experimental group(p<.0001) and control group-I(p<0.05) in value and attitude about life-respect. On the other hand, it was shown that there was no difference between pre and post-test in control group-II. 2. The result of examining the differences between pre and post-tests after education on values and attitudes toward life-respect using ANCOVA showed, there was a statistically significant difference (p<0.001) among the three groups. Conclusion: the life-respect education program which was conducted over 12 meeting with middle school students had an positive effect, which can be used as basic data for fostering values on life-respect. These findings indicate that the life-respect education program this study used is effective for fostering value of life-respect and decreasing suicide risk.

• 한국노년학
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• 제25권2호
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• pp.127-141
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• 2005

치매노인을 부양하는 배우자와 성인자녀가 접하는 어려움이 다름에도 불구하고, 선행 연구들은 이들을 한 집단으로 묶어 요양시설로의 입소에 미치는 요소를 분석하였다. 미국 뉴저지(New Jersey)와 오하이오(Ohio)주에 거주하는 치매 노인 부양자 456명을 대상으로 사건사 분석(Event History Analysis)을 실시한 결과, 배우자 부양자가 성인자녀 부양자에 비해 치매노인을 더 빨리 요양시설로 보내는 경향을 보여주었다. 치매노인의 연령과 역할 구속감(Role Captivity)은 두 집단 모두에게 유의미한 변수였는데, 치매노인의 연령과 부양자의 역할 구속감(Role Captivity)이 높을수록 요양시설로의 입소가 빨라지는 경향을 보였다. 교육수준과 소득은 성인자녀 부양자에게만 유의미한 변수로, 교육수준이 높을수록 시설로의 입소가 지연되었던 반면, 소득이 높을수록 시설로의 입소는 빨라지는 경향을 보였다. 한편 탁노소(Adult Day Care) 이용과 피부양자의 문제행동(Behavioral Problems)은 배우자 부양자에게만 유의미한 변수였으며, 탁노소를 이용할 경우와 피부양자의 문제행동이 증가할수록 요양시설로의 입소가 빨라지는 경향을 보였다.

• 한방재활의학과학회지
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• 제33권4호
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• pp.45-59
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• 2023

Objectives The aim of this study was to analyze the trends of researches on oriental medicine treatments for supraspinatus tendinopathy. Methods We used five databases for searching researches; Korean studies Information Service System, Oriental Medicine Advanced Searching Integrated System, Research Information Sharing Service, PubMed, and China National Knowledge Infrastructure. Only randomized controlled trials suitable for the subject were selected. The methodological quality of included randomized controlled trials (RCTs) was assessed by the Cochrane risk of bias tool. Results Twenty randomized controlled trials were analyzed. There were 9 types of treatment interventions; acupuncture, acupotomy, pharmacopuncture, electroacupuncture, fire needling, warming needle, catgut-embedding therapy, herbal medicine, cupping. The most frequently used treatment intervention was acupuncture and acupotomy. There were 9 outcome measurements including visual analog scale (VAS), Constant-Murley Score (CMS), and range of motion. The most used measurement was VAS. As a result of meta-analysis, acupuncture was more effective than control group in VAS. Additionally, acupotomy was clinically significant compared to control groups in VAS and CMS. Conclusions In this review, we analyzed researches on effectiveness of oriental medicine for supraspinatus tendinopathy. A provisional conclusion can be produced that acupuncture and acupotomy showed beneficial effect to supraspinatus tendinopathy. Although there were some RCT studies, many of them had a high risk of bias, so it is hard to conclude that our study can include overall clinical status. Further well-designed trials are needed.

• Korean Journal of Radiology
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• 제22권2호
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• pp.213-224
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• 2021

Objective: Clinical outcomes of patients who undergo transarterial chemoembolization (TACE) for single small hepatocellular carcinoma (HCC) are not consistent, and may differ based on certain imaging findings. This retrospective study was aimed at determining the efficacy of pre-TACE CT or MR imaging findings in predicting survival outcomes in patients with small HCC upon being treated with TACE. Besides, the study proposed to build a risk prediction model for these patients. Materials and Methods: Altogether, 750 patients with functionally good hepatic reserve who received TACE as the first-line treatment for single small HCC between 2004 and 2014 were included in the study. These patients were randomly assigned into training (n = 525) and validation (n = 225) sets. Results: According to the results of a multivariable Cox analysis, three pre-TACE imaging findings (tumor margin, tumor location, enhancement pattern) and two clinical factors (age, serum albumin level) were selected and scored to create predictive models for overall, local tumor progression (LTP)-free, and progression-free survival in the training set. The median overall survival time in the validation set were 137.5 months, 76.1 months, and 44.0 months for low-, intermediate-, and high-risk groups, respectively (p < 0.001). Time-dependent receiver operating characteristic curves of the predictive models for overall, LTP-free, and progression-free survival applied to the validation cohort showed acceptable areas under the curve values (0.734, 0.802, and 0.775 for overall survival; 0.738, 0.789, and 0.791 for LTP-free survival; and 0.671, 0.733, and 0.694 for progression-free survival at 3, 5, and 10 years, respectively). Conclusion: Pre-TACE CT or MR imaging findings could predict survival outcomes in patients with small HCC upon treatment with TACE. Our predictive models including three imaging predictors could be helpful in prognostication, identification, and selection of suitable candidates for TACE in patients with single small HCC.

• Annals of Occupational and Environmental Medicine
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• 제34권
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• pp.4.1-4.11
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• 2022

Background: Long working hours are known to account for approximately one-third of the total expected work-related diseases, and much interest and research on long working hours have recently been conducted. Additionally, as the prevalence of prediabetes and the high-risk group for diabetes are increasing worldwide, interest in prediabetes is also rising. However, few studies have addressed the development of type 2 diabetes and long working hours in prediabetes. Therefore, the aim of this longitudinal study was to evaluate the relationship between long working hours and the development of diabetes in prediabetes. Methods: We included 14,258 prediabetes participants with hemoglobinA1c (HbA1c) level of 5.7 to 6.4 in the Kangbuk Samsung Cohort Study. According to a self-reported questionnaire, we evaluated weekly working hours, which were categorized into 35-40, 41-52, and > 52 hours. Development of diabetes was defined as an HbA1c level ≥ 6.5%. Hazard ratios (HRs) and 95% confidence intervals (CIs) for the development of diabetes were estimated using Cox proportional hazards analyses with weekly working 35-40 hours as the reference. Results: During a median follow-up of 3.0 years, 776 participants developed diabetes (incidence density, 1.66 per 100 person-years). Multivariable-adjusted HRs of development of diabetes for weekly working > 52 hours compared with working 35-40 hours were 2.00 (95% CI: 1.50-2.67). In subgroup analyses by age (< 40 years old, ≥ 40 years old), sex (men, women), and household income (< 6 million KRW, ≥ 6 million KRW), consistent and significant positive associations were observed in all groups. Conclusions: In our large-scale longitudinal study, long working hours increases the risk of developing diabetes in prediabetes patients.

• Neonatal Medicine
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• 제16권2호
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• pp.205-212
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• 2009

목 적 : 적절한 산전관리는 미숙아의 생존율과 예후에 매우 중요한 요소로서 선진국에서는 산전관리에 영향을 미치는 산전관리 횟수, 산모의 산과력, 산전 관리기관의 인자들에 대한 연구가 일찍부터 이루어지고 있다. 그러나 국내에서는 산전관리에 영향을 및는 인자들에 대한 연구가 미흡하고, 이중에서 특히 산전관리와 이로 인한 미숙아의 예후에 대한 연구는 더욱 부족한 실정이다. 이에 저자들은 산전 관리기관의 차이가 극소 저체중 출생아의 예후에 영향을 미칠 수 있는 지를 알아보고자 본 연구를 시행하였다. 방 법 : 2007년 3월부터 2009년 2월까지 동국대학교 일산병원에서 출생하여 신생아 중환자실에 입원한 37주 미만의 미숙아 중에서 출생체중 1,500 g 미만의 극소 저체중 출생아 91명을 대상으로 하였다. 산모의 산전 관리기관은 2차 이하 신생아 집중 치료실을 가진 병원을 1차 산전관리 기관으로, 3차 이상의 집중 치료실을 가진 기관을 2차 산전관리 기관으로 구분하였으며, 두 군의 출생 환자들의 임상적 특징과 합병증을 후향적으로 분석하였다. 또한 산모가 2차 산전관리 기관으로 이송된 후 출산까지의 시간을 24시간 전후로 구분하여 출생환자들의 임상적 특징과 합병증을 비교 분석하였다. 결 과 : 전체 91명의 환자 중 2차 의료기관에서 산전관리를 받은 산모는 10명(11.0%)이었다. 두 군 산모의 특징으로 나이, 조기 양막 파수, 조직학적 융모 양막염, 산전 스테로이드, 총 백혈구 수를 비교하였으나 유의한 차이는 없었다. 산전 관리 기관별 환자 군을 대상으로 재태연령, 출생체중, Apgar 점수, CRIB II (clinical risk index for babies), 총 백혈구 수, 혈소판 수, 호흡곤란증후군, 기관지폐 이형성증, 사망률 등을 비교 하였을 때 유의한 차이는 없었다. 다시 이송 후 출산까지의 시간을 기준으로 분석했을 때 24시간 이내 출생 군에서 재태연령이 더 짧았고(P=0.04), 1분 Apgar 점수(P=0.01) 및 5분 Apgar 점수(P=0.02)점수가 더 낮았다. 재태연령을 보정하여 다중회귀 분석을 실시하였을 때 I군이 D군과 비교하여 3점 이하 1분 Apgar 점수의 비교위험도가 2.85로 95%신뢰구간에서 유의한 값을 보였다. 결 론 : 산전관리 기관의 차이가 극소 저체중 출생아의 예후에 영향을 주지는 않았으나 임신의 유지시간이 짧을수록 Apgar 점수는 낮았다. 이로써 1차 산전관리기관과 2차 산전관리 기관사이의 긴밀한 협조와 조기이송 체계를 통하여 더 나은 미숙아의 예후를 기대 할 수 있으리라 본다.