1、實證醫學訓練 第一階段生問題及文獻搜尋產馬偕紀念醫院實證醫學工作小組20102011方靜如劉淑容馬偕紀念醫院 2010 PGY訓練課程2/62第三節 文獻搜尋3/62文獻搜尋(實際操作,20分鐘)請根據 剛才寫出的您 PICO,選擇 最想您解決的問題,在馬偕紀念醫院圖書館提供的資源下,找一篇最 得閱讀的文章。值4/62第四節 認識文獻的等級及資料庫5/62證據等級表濃縮自: Oxford Centre for EBM Levels of Evidence(第1版) http:/ 2010.6上線: http:/ 證據力強設計嚴謹偏差少證據力弱設計薄弱偏差多並非所有臨床問題都可找到最高等級文獻,
2、但應盡可能使用等級高的證據來源Level Therapy/Prevention, Aetiology/Harm1a Systematic review of RCTs + Meta-Analysis1b Randomized controlled trial (RCT)1c All-or-none2a Systematic review of cohort studies2b Cohort study or poor RCT2c Outcomes research3a Systematic review of case-control studies3b Case-control study4
3、 Case series5 Expert opinion without explicit critical appraisal, or based on physiology, bench research or “first principles“ stematic review of RCTs + Meta-Analysis Randomized controlled trial (RCT) Cohort study or poor RCTh ; Ecological studies Case ontrol study Case series6/62Randomized Controll
4、ed Trial (RCT)隨機對照試驗SUNY Downstate EBM Tutorial: http:/library.downstate.edu/EBM2/research.htm ,http:/www.dartmouth.edu/biomed/services.htmld/EBP_docs/types_of_studies_downstate.pdf結核病人鏈黴素安慰劑有病沒病有病沒病有介入有對照有隨機7/62Cohort Study 世代 究研抽菸者非抽菸者SUNY Downstate EBM Tutorial: http:/library.downstate.edu/EBM2/r
5、esearch.htm ,http:/www.dartmouth.edu/biomed/services.htmld/EBP_docs/types_of_studies_downstate.pdf肺癌無肺癌肺癌無肺癌觀察性研究方法。大多是前瞻性,也有少數是回溯性。一群界定清楚的人檢驗有(或無)暴露在某種介入的子群組之間差異8/62Case Control Study病例對照 究研SUNY Downstate EBM Tutorial: http:/library.downstate.edu/EBM2/research.htm ,http:/www.dartmouth.edu/biomed/se
6、rvices.htmld/EBP_docs/types_of_studies_downstate.pdf癌症病人非癌症病人抽菸者非抽菸者抽菸者非抽菸者9/62SUNY Downstate EBM Tutorial: http:/library.downstate.edu/EBM2/research.htm ,http:/www.dartmouth.edu/biomed/services.htmld/EBP_docs/types_of_studies_downstate.pdfCase Series and Case Report病例系列與病例報告10/62Systematic Review +
7、 Meta-Analysis 系統性評論 + 統合分析SUNY Downstate EBM Tutorial: http:/library.downstate.edu/EBM2/research.htm ,http:/www.dartmouth.edu/biomed/services.htmld/EBP_docs/types_of_studies_downstate.pdf(通常是RCT)Systematic Review1. 提出一個特定的臨床問題2. 執行完整文獻搜尋3. 排除不適用的研究4. 評析 適用的研究. 結臨床應用上的可行 於systematic review個 研究數據 行 析結出一個證據 的結 Unsystematic narrative “review”:個人 證據, 證據搜 也常 自reviewer個人的