• 제목, 요약, 키워드: systematic review

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유용한 온라인 리뷰에서 어느 것이 더 중요한가? 휴리스틱-체계적 모델 관점 (Which is More Important in Useful Online Review? Heuristic-Systematic Model Perspective)

  • 정희정;이현애;정남호;구철모
    • 지식경영연구
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    • v.19 no.4
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    • pp.1-17
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    • 2018
  • Hotel consumers tend to rely on online reviews to reduce the risk to hotel products when they book hotel rooms because hotel products are high-risk products due to their intangibility. However, the development of ICT has caused information load, and it is an important issue to be perceived as useful information to consumer because a large amount of information complicates the decision making process of consumers. Drawn from Heuristic-Systematic Model(HSM), the present study explored the role of heuristic and systematic cues composing an online review influencing consumers' perception of hotel online reviews. More specifically, this study identified reviewers' identity, level of the reviewer, review star ratings, and attached hotel photo as heuristic cue, while review length, cognitive level of review and negativity in review as systematic cues. The binary logistic regression was adopted for analysis. This study found that only systematic cues of online review were found to affect the usefulness of it. Moreover, we preceded further study examining the moderating effect of seasonality in the relationships between systematic cues and usefulness.

침(鍼)의 근거중심적(根據中心的) 연구동향(硏究動向)에 관(關)한 고찰(考察) - Systematic review & Meta-analysis를 중심으로 - (The Review on the Evidence-Based Study of Acupuncture - Systematic review and Meta-analysis -)

  • 백용현;박동석;강성길
    • Journal of Acupuncture Research
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    • v.19 no.3
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    • pp.138-155
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    • 2002
  • Objective : The purpose of this study is to work on the problems and on the direction of the study regarding the evidence-based study of Acupuncture. Methods : We reviewed the PubMed electronic database. Eight articles of systematic review without meta-analysis and six articles without meta-analysis were selected. Results : In the study of eight articles of systematic review without meta-analysis, there were two articles on effectiveness of acupuncture and one on non-effectiveness of acupuncture. Four articles were about the changes according to the quality of randomized controlled trials. Also, one article was about the side-effect of acupuncture. In the study of six articles of systematic review with meta-analysis, there were two articles on Odds Ratio, two on Relative Risk, one on number-needed-to-treat, and two on 18 predefined methodological criteria. Conclusion : As the quality of RCTs was high, positive response decreased and as the quality of RCTs was low, positive response increased. For the study of evidence-based acupuncture, it is necessary that we conduct research on well-planned placebo acupuncture, large sample size, statistical method, method of searching and assessing literature and method of meta-analysis.

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Evidence-based approaches for establishing the 2015 Dietary Reference Intakes for Koreans

  • Shin, Sangah;Kim, Subeen;Joung, Hyojee
    • Nutrition Research and Practice
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    • v.12 no.6
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    • pp.459-468
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    • 2018
  • BACKGROUND/OBJECTIVES: The Dietary Reference Intakes for Koreans (KDRIs), a set of reference intake values, have served as a basis for guiding a balanced diet that promotes health and prevents disease in the general Korean population. In the process of developing DRIs, a systematic review has played an important role in helping the DRI committees make evidence-based and transparent decisions for updating the next DRIs. Thus, the 2015 KDRI steering committee applied the systematic review framework to the revision process of the KDRIs. The purpose of this article is to summarize the revision process for the 2015 KDRIs by focusing on the systematic review framework. MATERIALS/METHODS: The methods used to develop the systematic review framework for 2015 KDRIs followed the Agency for Healthcare Research and Quality and the Tufts Evidence-based Practice Center. The framework for systematic review of the 2015 KDRIs comprised of the 3 following steps: (1) development of an analytic framework and refinement of key questions and search terms; (2) literature search and data extraction; and, (3) appraisal of the literature and summarizing the results. RESULTS: A total of 203,237 studies were retrieved through the above procedure, with 2,324 of these studies included in the analysis. General information, main results, comments of reviewers, and results of quality assessment were extracted and organized by study design. The average points of quality appraisals were 3.0 (range, 0-5) points for intervention, 6.1 (0-9) points for cohort, 6.0 (3-9) points for nested case-control, 5.4 (1-8) points for case-control, 14.6 (0-22) points for cross-sectional studies, and 7.0 (0-11) points for reviews. CONCLUSIONS: Systematic review helped to establish the 2015 KDRIs as a useful tool for evidence-based approach. Collaborative efforts to improve the framework for systematic review should be continued for future KDRIs.

알코올중독 발병 요인에 관한 체계적 문헌고찰 (A Systematic Review of Literature on Psychosocial Factors Influencing Alcoholism)

  • 박규희;김헌경
    • 한국농촌간호학회지
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    • v.10 no.2
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    • pp.43-58
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    • 2015
  • Purpose: The aim of this study was to analyze the cause of alcoholism based on a systematic review of previous studies published from 2009 to 2014. Methods: The study design was a systematic review of the literature in which factors constituting causes of alcoholism were analyzed. Search words used to retrieve foreign studies were "alcoholism" or a combination of "alcohol dependency" and "etiology" or "predictor. Research Information Sharing Service (RISS) of the Korea Education and Research Information Service and Dbpia, a database for domestic academic studies, were used as search engines for retrieving domestic papers. Results: The systematic literature review found that for emotional and psychological factors as etiology of alcoholism, abuse-related factors had the largest proportion with a total of 63%. Conclusions: In this study factors related to alcoholism were examined in terms of emotions, psychology, environments, families and others. As a result, it was found that alcohol consumption at an early age and experience of abuse were major causes for alcoholism.

대한한방소아과학회지에 게재된 체계적 문헌고찰의 보고 질 및 방법론적 질 평가 (Evaluation of the Reporting and Methodological Quality of the Systematic Review from the Journal of Pediatrics of Korean Medicine)

  • 심수보;이주아;이혜림
    • 대한한방소아과학회지
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    • v.34 no.1
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    • pp.26-36
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    • 2020
  • Objectives The purpose of this study is to assess the reporting quality and methodological quality of systematic reviews from the Journal of Pediatrics of Korean Medicine. Methods Systematic reviews were selected from the Journal of Pediatrics of Korean Medicine (JPKM) by utilizing Oriental Medicine Advanced Searching Integrated System (OASIS) and JPKM homepage. Two independent researchers assessed the reporting quality through Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline checklist, and assessed the methodological quality of systematic review through Assessment of Multiple Systematic Reviews (AMSTAR) 2 tool checklist. Results Four systematic reviews were finally selected for the assessment. When assessed by PRISMA, three literatures were little insufficient, and one literature was sufficient. When assessed by AMSTAR 2, three literatures were moderate quality, and one literature was critically low quality. Also, all of the reviews had no information about 'Protocol and registration', 'publication bias', and 'conflicts of interest'. Conclusions Systematic review is important for Journal of Pediatrics of Korean Medicine and Korean Medicine Society. Efforts are needed to improve the reporting and methodological quality of the systematic reviews through PRISMA and AMSTAR 2.

프로토콜 : 이명에 대한 무작위대조임상시험의 체계적 문헌 고찰 - 결과 측정 방법을 중심으로 (Protocol developing : A Systematic Review of Randomized Controlled Trials in Tinnitus - a Focus on Methods of Outcome Measurement)

  • 이동효;이정헌;오용열;김남권
    • 한방안이비인후피부과학회지
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    • v.22 no.2
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    • pp.186-191
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    • 2009
  • 목적 : 체계적 문헌고찰(Systematic Review)은 Protocol 개발과 Review로 구분되며, 본 연구는 국내외 의학논문 검색엔진에 등재된 이명증의 RCT 문헌들을 대상으로 평가지표를 추출하는 Systematic Review를 진행하기 위한 Protocol의 개발을 목적으로 함. 방법 : 문헌고찰을 위한 각 과정들 및 연구에 필요한 사전 결정 인자 들을 연구자 회의와 체계적 문헌고찰 protocol 개발 방식에 근거하여 개발함. 결과 : Outcome measurement의 추출을 위한 Systermatic Review의 진행에 적합한 database의 선정, 각 database에 적합한 검색식, 검색기간, 논문의 선정 및 제외기준, PICO(patient, intervention, comparator, outcome) form의 개발, 질 평가의 근거기준, 각 연구자의 역할, data의 취합 및 분석 방법 등의 결과를 개발하고 결정하였음. 결론 : 이상에서 과정에서 도출된 결과에 근거하여, 향후 Outcome measurement 추출을 위한 Review를 진행하고 차후 Review논문으로 발표할 예정임.

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A Content Analysis of the Trends in Vision Research With Focus on Visual Search, Eye Movement, and Eye Track

  • Rhie, Ye Lim;Lim, Ji Hyoun;Yun, Myung Hwan
    • Journal of the Ergonomics Society of Korea
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    • v.33 no.1
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    • pp.69-76
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    • 2014
  • Objective: This study aims to present literature providing researchers with insights on specific fields of research and highlighting the major issues in the research topics. A systematic review is suggested using content analysis on literatures regarding "visual search", "eye movement", and "eye track". Background: Literature review can be classified as "narrative" or "systematic" depending on its approach in structuring the content of the research. Narrative review is a traditional approach that describes the current state of a study field and discusses relevant topics. However, since literatures on specific area cover a broad range, reviewers inherently give subjective weight on specific issues. On the contrary, systematic review applies explicit structured methodology to observe the study trends quantitatively. Method: We collected meta-data of journal papers using three search keywords: visual search, eye movement, and eye track. The collected information contains an unstructured data set including many natural languages which compose titles and abstracts, while the keyword of the journal paper is the only structured one. Based on the collected terms, seven categories were evaluated by inductive categorization and quantitative analysis from the chronological trend of the research area. Results: Unstructured information contains heavier content on "stimuli" and "condition" categories as compared with structured information. Studies on visual search cover a wide range of cognitive area whereas studies on eye movement and eye track are closely related to the physiological aspect. In addition, experimental studies show an increasing trend as opposed to the theoretical studies. Conclusion: By systematic review, we could quantitatively identify the characteristic of the research keyword which presented specific research topics. We also found out that the structured information was more suitable to observe the aim of the research. Chronological analysis on the structured keyword data showed that studies on "physical eye movement" and "cognitive process" were jointly studied in increasing fashion. Application: While conventional narrative literature reviews were largely dependent on authors' instinct, quantitative approach enabled more objective and macroscopic views. Moreover, the characteristics of information type were specified by comparing unstructured and structured information. Systematic literature review also could be used to support the authors' instinct in narrative literature reviews.

경추성 현훈에 대한 추나요법의 치료 효과 : 체계적 문헌고찰 (Chuna Manual Therapy for Cervicogenic Dizziness : A Systematic Review)

  • 박나리;최수민;양두화;우창훈;안희덕
    • 척추신경추나의학회지
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    • v.13 no.2
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    • pp.11-21
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    • 2018
  • Objectives : To evaluate the evidence for effectiveness of Chuna manual therapy, for cervicogenic dizziness Methods : We conducted a search across 6 electronic databases to find all randomized controlled clinical trials(RCTs) that discuss Chuna manual therapy till September 2018. Results : 7 RCTs were selected for our inclusion criteria. The systematic review showed positive results for using Chuna manual therapy, for treating cervicogenic dizziness. Conclusions : Our systematic review found that effectiveness Chuna manual therapy for cervicogenic dizziness. However, our systematic review had several limited evidence. We recommend an additional research to test the effectiveness of Chuna manual therapy.

모유 수유 개별 방문 프로그램의 효과: 체계적 문헌고찰과 메타분석 (Effect of Breastfeeding Individual Visits Program: A Systematic Review and a Meta-Analysis)

  • 조문주;김혜영;박서아
    • 부모자녀건강학회지
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    • v.22 no.1
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    • pp.30-42
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    • 2019
  • Purpose: This study was a systematic review and meta-analysis designed to evaluate the effects of breastfeeding individual visit program. Methods: Based on the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA), a systematic search was conducted using four core electronic databases from October 28, 2018 to November 14, 2018. The topics of breastfeeding individual visit program were analyzed using descriptive analysis and the effects of intervention were meta-analyzed using the Review Manager 5.3 software. Results: A total of 13 studies were included in the review and 12 were included for meta-analysis. Breastfeeding individual visit programs were found to be more effective in breastfeeding rates, attitude, skill and self-efficacy compared to group education or non-education. Conclusion: Effective breastfeeding education can help mothers to start and sustain breastfeeding. Breastfeeding individual visits programs that are more effective than group education to maintain breastfeeding for pregnant women should be developed and applied.

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