• 제목/요약/키워드: Cohort Studies

검색결과 630건 처리시간 0.033초

Pyogenic Liver Abscess as a Warning Sign for Primary Liver Cancer: A Nationwide Population-based Study

  • Huang, Wen-Kuan;Lin, Yung-Chang;Chiou, Meng-Jiun;Yang, Tsai-Sheng;Chang, John Wen-Cheng;Yu, Kuang-Hui;Kuo, Chang-Fu;See, Lai-Chu
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권8호
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    • pp.4727-4731
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    • 2013
  • Background: There have been no large-scale population-based studies to estimate the subsequent risk of primary liver cancer (PLC) among patients with pyogenic liver abscess (PLA). This study aimed to provide relevant data. Materials and Methods: The Taiwan Longitudinal Health Insurance Database for the years 2000 and 2005 was used. The PLA group were adult inpatients who were newly diagnosed with PLA from 2000 to 2008. The control group was randomly selected and matched with the PLA group in terms of age, sex, and date in which medical treatment was sought other than for PLA. Results: There were 1,987 patients each in the PLA and control groups. In total, 56 had PLC, 48 (2.4%, 601.5 per 100,000 person-years) from the PLA group, and 8 from the control group. After adjusting for potential covariates, the hazard ratio of PLC for the PLA group was 3.4 times that of the control group (95% confidence interval = 1.6-7.3, p <0.001). The PLC risk for the PLA group was significantly higher within the first year after PLA diagnosis (hazard ratio: 35.4) as compared with the control group and became insignificant (hazard ratio: 2.0, 95% confidence interval = 0.8-4.9) more than one year after PLA diagnosis. Conclusions: Patients with PLA have a higher rate of PLC than matched controls, especially within the first year after the diagnosis of PLA, suggesting PLA is a warning sign for PLC.

한 농촌 지역 성인들의 10년 간 비만도 변화(1990~1999) (Trends in Obesity in a Rural Korean Adults (1990~1999))

  • 김유미;전정옥;김미경;최보율
    • 농촌의학ㆍ지역보건
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    • 제30권1호
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    • pp.113-120
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    • 2005
  • 이 연구는 경기도 한 농촌지역 주민 1,663명을 대상으로 10년 간의 6차례 조사를 시행하여 체질량지수와 과체중의 변화를 파악하였다. 그 결과 체질량지수는 성별과 연령을 보정한 후에도 조사 시기에 따라 증가하는 경향을 보였다. 과체중 이상의 유병률도 각 연령군 내에서 시기별로 증가하는 경향을 나타내었고, 이는 여자에게서 뚜렷하였다. 연령별 층화한 과체중의 유병률은 남자에게서 40대와 50대에서 시간의 경과에 따른 증가가 유의하게 나타났으며, 여자에게서는 40대, 50대, 60대에서 유의한 증가를 보였다. 남자와 여자 모두 1990년에서 1999년까지의 증가폭은 40대에서 가장 높았으며, 남자의 전체 증가폭이 여자의 경우 보다 높았으나 여자의 과체중 유병률이 더욱 높았다. 전체 인구의 1990년에서 1999년까지의 과체중 유병률은 통계적으로 유의하지는 않았으나 34.1%에서 63.9%로 29.8%의 증가폭을 보였으며 시간의 증가에 따라 유의한 증가의 경향을 보였다. 농촌 지역 남자의 체질량지수와 과체중의 유병률은 다른 집단과 비슷한 양상을 띄었으나 여자에게서 유병률이 높은 것을 알 수 있었다. 그러므로 이에 대한 원인을 규명하는 연구가 시행되어야 할 것이다.

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Maternal and fetal outcomes of pregnancies in kidney donors: A 30-year comparative analysis of matched non-donors in a single center

  • Yoo, Kyung Don;Lee, Hajeong;Kim, Yaerim;Park, Sehoon;Park, Joong Shin;Hong, Joon Seok;Jeong, Chang Wook;Kim, Hyeon Hoe;Lee, Jung Pyo;Kim, Dong Ki;Oh, Kook-Hwan;Joo, Kwon Wook;Kim, Yon Su
    • Kidney Research and Clinical Practice
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    • 제37권4호
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    • pp.356-365
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    • 2018
  • Background: Woman kidney donors face obstetric complication risks after kidney donation, such as gestational hypertension and preeclampsia. Studies on childbirth-related complications among Asian women donors are scarce. Methods: This retrospective cohort study included woman donors aged 45 years or younger at the time of kidney donation in a single tertiary hospital between 1985 and 2014. Pregnancy associated complications were investigated using medical records and telephone questionnaires for 426 pregnancies among 225 donors. Matched non-donor controls were selected by propensity score and the maternal and fetal outcomes were compared with those of donors. Primary outcomes were differences in maternal complications, and secondary outcomes were fetal outcomes in pregnancies of the donor and control groups. Results: A total of 56 cases had post-donation pregnancies. The post-donation pregnancies group was younger at the time of donation and older at the time of delivery than the pre-donation pregnancies group, and there were no differences in primary outcomes between the groups except the proportion receiving cesarean section. Comparison of the complication risk between post-donation pregnancies and non-donor matched controls showed no significant differences in gestational hypertension, preeclampsia, or composite outcomes after propensity score matching including age at delivery, era at pregnancy, systolic blood pressure, body weight, and estimated glomerular filtration ratio (odds ratio, 0.63; 95% confidence interval, 0.19-2.14; P = 0.724). Conclusion: This study revealed that maternal and fetal outcomes between woman kidney donors and non-donor matched controls were comparable. Studies with general population pregnancy controls are warranted to compare pregnancy outcomes for donors.

농촌 노인의 사회적 고립이 치매에 미치는 영향 : 전기노인과 후기노인 비교 분석 (The Effect of Social Isolation on Dementia in rural elderly: Comparison Between Young-old and Old-old Group)

  • 이상철
    • 사회복지연구
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    • 제48권2호
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    • pp.143-171
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    • 2017
  • 다차원적인 사회적 고립은 신체적 정신적 건강 및 조기사망률과 밀접한 관계가 존재한다. 본 연구에서는 농촌 노인의 연령집단별 건강의 이슈 중 급속한 고령화로 인해 사회문제로 대두되고 있는 치매 발병과 객관적 주관적 사회적 고립의 상대적 영향력을 나타내는 주효과와 상호작용효과를 이항로지스틱회귀분석을 통해 살펴보았다. 분석자료는 다차원적인 사회적 고립 개념의 특성과 치매발병의 다양한 위험요인들을 충실히 반영하고 있는 KSHAP 1차년도 자료를 활용하였다(N=814). 분석결과, 선행연구에서 지적되어 온 다양한 치매발병 위험요인(심리사회적 병리적 건강행동 스트레스 및 인구사회적 변수 등)을 통제한 상태에서 전기노인의 경우 치매 발병에 객관적 사회적 고립의 주효과가 유의미한 영향이 존재한 반면, 후기노인의 경우 주관적 사회적 고립의 주효과가 치매 발병 확률을 높이는 것으로 나타났다. 정리하자면 치매발병과 관련한 객관적 주관적 사회적 고립의 상대적인 영향력은 전기노인과 후기노인에 따라 다르게 나타났다. 한편 치매발병에 대한 객관적 주관적 사회적 고립의 상호작용효과는 전기노인과 후기노인 모두 유의미하게 나타나지 않았다. 본 연구결과에 기초하여 농촌 노인 대상 객관적 주관적 사회적 고립 완화를 통한 치매 예방 및 최근 관심이 고조되고 있는 치매친화지역사회(dementia-friendly communities) 조성과 관련한 시사점에 대해 논의하였다.

Trends and Costs of External Electrical Bone Stimulators and Grafting Materials in Anterior Lumbar Interbody Fusion

  • D'Oro, Anthony;Buser, Zorica;Brodke, Darrel Scott;Park, Jong-Beom;Yoon, Sangwook Tim;Youssef, Jim Aimen;Meisel, Hans-Joerg;Radcliff, Kristen Emmanuel;Hsieh, Patrick;Wang, Jeffrey Chun
    • Asian Spine Journal
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    • 제12권6호
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    • pp.973-980
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    • 2018
  • Study Design: Retrospective review. Purpose: To identify the trends in stimulator use, pair those trends with various grafting materials, and determine the influence of stimulators on the risk of revision surgery. Overview of Literature: A large number of studies has reported beneficial effects of electromagnetic energy in healing long bone fractures. However, there are few clinical studies regarding the use of electrical stimulators in spinal fusion. Methods: We used insurance billing codes to identify patients with lumbar disc degeneration who underwent anterior lumbar interbody fusion (ALIF). Comparisons between patients who did and did not receive electrical stimulators following surgery were performed using logistic regression analysis, chi-square test, and odds ratio (OR) analysis. Results: Approximately 19% of the patients (495/2,613) received external stimulators following ALIF surgery. There was a slight increase in stimulator use from 2008 to 2014 (multi-level $R^2=0.08$, single-level $R^2=0.05$). Patients who underwent multi-level procedures were more likely to receive stimulators than patients who underwent single-level procedures (p<0.05; OR, 3.72; 95% confidence interval, 3.02-4.57). Grafting options associated with most frequent stimulator use were bone marrow aspirates (BMA) plus autograft or allograft for single-level and allograft alone for multi-level procedures. In both cohorts, patients treated with bone morphogenetic proteins were least likely to receive electrical stimulators (p<0.05). Patients who received stimulation generally had higher reimbursements. Concurrent posterior lumbar fusion (PLF) (ALIF+PLF) increased the likelihood of receiving stimulators (p<0.05). Patients who received electrical stimulators had similar revision rates as those who did not receive stimulation (p>0.05), except those in the multilevel ALIF+PLF cohort, wherein the patients who underwent stimulation had higher rates of revision surgery. Conclusions: Concurrent PLF or multi-level procedures increased patients' likelihood of receiving stimulators, however, the presence of comorbidities did not. Patients who received BMA plus autograft or allograft were more likely to receive stimulation. Patients with and without bone stimulators had similar rates of revision surgery.

파킨슨병 환자의 통증에 대한 한의치료의 효과 : 후향적 연구 (Effects of Korean Medicine on Pain in Patients with Parkinson's Disease: A Retrospective Study)

  • 정혜선;김하리;김서영;임태빈;진철;권승원;조승연;정우상;문상관;박정미;고창남;박성욱
    • 대한한방내과학회지
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    • 제41권6호
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    • pp.947-958
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    • 2020
  • Objectives: To investigate efficacy of Korean medicine for patients with Parkinson's Disease (PD) with pain. Methods: We performed a retrospective review of the medical records for patients diagnosed with PD between 2012 and 2019 at Gangdong Kyung Hee University Korean Medicine Hospital in South Korea. Results: Twenty-two patients with King's Parkinson's Disease Pain Scale(KPPS) scores at least twice were analyzed for evaluating the efficacy of Korean medicine for pain treatment in PD. The mean total scores before and after Korean medicine treatment were 15.23±1 .01 and 9.2±8.7, respectively, and the mean difference between the before/after total scores was 6.0±5.8 (P<0.001). Specifically, the score of radicular pain was significantly decreased (P=0.048). Conclusions: These findings suggest that Korean medicine could be beneficial for reducing pain associated with PD. Clinical efficacy should be confirmed by further studies, such as large-sample cohort studies and randomized controlled trials to clarify the pathological pain relief mechanism and the analgesic effect of Korean medicine.

인지기능 감퇴가 있는 노인의 이중 과제 보행과 인지기능과의 상관성에 대한 체계적 문헌 고찰 (The Correlation between Gait and Cognitive Function in Dual-task Walking of the Elderly with Cognitive Impairment: A Systematic Literature Review)

  • 신재연;김예진;김지수;민수빈;박재니;배재한;서희은;신희선;유영은;임주영;장지수;조영우;이한숙
    • 대한물리의학회지
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    • 제17권1호
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    • pp.93-108
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    • 2022
  • PURPOSE: This review sought to confirm the correlation between dual-task gait and cognitive function in cognitively impaired and healthy older adults. METHOD: We used four databases (DBs), Pubmed, Cochrane library, Kmbase, and Koreamed. Searches were carried out according to the PICOS method, P (participants) were the elderly (above 65 years) with cognitive decline, I (intervention) was walking with dual tasks, C (control group) comprised the elderly without cognitive decline, O (outcome) was the correlation between gait and cognitive function and S (study) was the cross-sectional study. For the methodological quality assessment of each study, we used the Quality Assessment Tool for Observation Cohort and Cross-Sectional Studies provided by the National Institutes of Health (NIH). RESULTS: A total of 10 articles were included in this systematic review. For the components of gait, we used pace, rhythm, and variability and we observed that mild cognitive impairment mostly causes low gait performance while performing dual tasks. Among the 10 articles, 9 articles studied pace, of which 7 showed significant results. However, 2 were not significant. Also, 1 article that studied rhythm and 3 articles that studied variability showed significant results. The methodological quality of the 10 studies was fair. CONCLUSION: Gait pace was found to have a high correlation between memory, which is a cognitive ability, and overall cognitive function. It was observed that older adults with mild cognitive impairment have reduced gait pace in single-task walking, and further decrease in dual-task gait pace shows the correlation between memory and gait pace during walking.

Association of Pre- and Perinatal Risk Factors With Tourette Syndrome or Chronic Tic Disorders in a Korean School-Age Population

  • Wooseok Choi;Soon-beom Hong;Johanna Inhynag Kim;Jung Lee;Soomin Jang;Yebin D Ahn;You Bin Lim;Sumin Kim;Mee Rim Oh;Bung-Nyun Kim
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제34권1호
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    • pp.37-44
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    • 2023
  • Objectives: Tic disorders are highly heritable; however, growing evidence suggests that environmental factors play a significant role in their pathogenesis. Studies on these factors have been inconsistent, with conflicting results. Therefore, this study aimed to examine the associations of pre- and perinatal exposure to Tourette syndrome (TS) or chronic tic disorders (CTD) in Korean school-aged children. Methods: This case-control study used data from a large prospective cohort study. The primary outcome was TS/CTD diagnosis according to the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5) criteria and Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version-Korean Version. Demographic, pre-, and perinatal information was obtained from the maternal questionnaires. Data between the TS/CTD and control groups were compared using the chi-squared or Student's t-test, as appropriate. Two-step logistic regression analyses were used to test the association between TS/CTD and pre- and perinatal risk factors. Results: We included of 223 children (78 with TS/CTD and 145 controls). Significant differences in the demographic data between the two groups were observed. The male sex ratio, mean parental age, parental final education level, and family history of tics were included as confounders. In the final adjusted multivariable model, TS/CTD was significantly associated with antiemetic exposure during pregnancy (odds ratio [OR]=16.61, 95% confidence interval [CI] 1.49-185.22, p=0.02) and medically assisted reproduction (OR=7.89, 95% CI 2.28-27.28, p=0.01). Conclusion: Antiemetic exposure and medically assisted reproduction are significantly associated with the risk of TS/CTD. These results should be replicated in future prospective and gene-by-environment studies.

노년기 인지기능과 일상생활기능장애 변화에 대한 연구 - 치매발생집단과 정상유지집단 간 차이 - (Changes in cognitive function and functional disability in older adults - Comparison of groups converted and not converted to dementia among cognitively normal older adults -)

  • 이현주
    • 사회복지연구
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    • 제44권2호
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    • pp.327-358
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    • 2013
  • 본 연구는 노년기 인지기능과 일상생활기능장애 변화양상을 분석하고, 이에 대한 인구사회학적 요인의 영향력을 검증하는 것을 목적으로 하였다. 특히 인지손상정도에 따라 변화양상과 인구사회학적 요인의 영향력이 다를 것이라는 가정 하에, 정상인지를 가진 지역사회 거주노인에서 이후 6년여의 추적조사 기간 동안 치매가 발생한 집단(치매발생집단)과 정상인지를 유지하고 있는 집단(정상유지집단)에 따른 차이를 분석하는 것에 초점을 두었다. 분석 자료는 경기도 연천지역에 거주하는 65세 이상 노인 966명을 대상으로 3년여 간격으로 3회 추적 조사된 역학조사 자료를 사용하였다. 자료 분석은 구조방정식모형을 활용한 잠재성장모형(Latent growth model)과 다중집단분석(Multi-group analysis)을 실시하였으며, 통계프로그램은 AMOS 18.0을 사용하였다. 연구 결과, 치매발생집단은 치매로 진단되기 수년 전부터 정상유지집단에 비해 인지기능이 유의하게 낮을 뿐 아니라 이후 인지저하가 약 3.5배가량 빠르게 진행되었다. 일상생활기능장애 궤적의 경우 초기에는 집단 간 유의한 차이가 없다가, 이후 치매발생집단의 일상생활기능장애가 정상유지집단에 비해 약 3배가량 더 급속히 악화되는 것으로 나타났다. 인지기능과 일상생활기능장애에 대한 인구사회학적 요인의 영향력을 살펴본 결과, 인지저하는 여성에서 더 급격한 반면, 일상생활기능저하는 남성에서 더 현저하게 나타났으며, 생애초기에 결정되는 학력이 생애후기의 인지기능에 강력한 영향력을 갖는 것으로 나타났다. 이러한 연구결과에 근거하여 노년기 인지기능과 일상생활기능장애에 대한 개입에서 주목해야 할 고위험군과 그에 대한 실천적 함의를 논의하였다.

한국 성인의 해조류 섭취와 다유전자 위험 점수 간의 상호작용이 염증에 미치는 영향 (Effects of the interaction between seaweed consumption and the polygenic risk score on inflammation in Korean adults)

  • 홍가연;신다연
    • Journal of Nutrition and Health
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    • 제57권2호
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    • pp.211-227
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    • 2024
  • 본 연구에서는 해조류 섭취와 염증과 관련된 유전자의 변이 및 다유전자 위험 점수 간의 상호작용이 염증에 미치는 영향을 확인하였다. 남성과 여성 모두 PRS가 높은 그룹에서 염증 발생 위험은 증가하였다. 본 연구에서는 해조류의 섭취가 염증과 직접적인 관련이 있는 것으로 밝혀지지 않았지만, 해조류 섭취와 다유전자 위험 점수 변이 사이에선 통계적으로 유의한 결과를 보였다. 특히, 낮은 해조류의 섭취는 높은 다유전자 위험 점수를 가진 여성에서 고염증 발생 위험이 높았다. 따라서 본 연구결과는 한국인에게서 작용하는 염증 및 염증질환에 대한 유전자 소인을 파악할 수 있고 면역 체계의 균형 및 건강 유지에 새로운 중재방안을 제시할 수 있음을 기대한다.