依資料庫內容性質區分

Report
Sept 2:Search
資料庫的選擇
 關鍵字的設定
 檢索策略的運用
 檢索結果儲存─以PubMed為例

§ 依資料庫內容性質區分:
1.Prefiltered Uptodate
Resources
Clinical Evidence
收錄Topic
Review
Cochrane Library
Dynamed
Best Evidence
收錄
Article
Evidence-based系
Review
列之期刊
Bmjupdate
§ 依資料庫內容性質區分:
2.Unfiltered PubMed
Resources
Ovid Medline
收錄
Primary
Article
Ovid Cinahl
NLM Gateway
其他期刊資料庫等
3.Guideline Ex:NGC, CDC,…etc.
5S Levels
Prefiltered
Systems
Computerized decision support
Summaries
Evidence-based textbooks or EB-CPG
Synopses
Syntheses
Studies
Modified from R Brain Haynes et al.: ACP Journal Club Nov/Dec 2006 | Vol 145 • Number 34;A8-A9.
5S Levels
Systems
Prefiltered
Summaries
Synopses
Computerized decision support
Evidence-based textbooks or EB-CPG
Evidence-based journal abstracts
Syntheses
Studies
Modified from R Brain Haynes et al.: ACP Journal Club Nov/Dec 2006 | Vol 145 • Number 34;A8-A9.
5S Levels
Systems
Prefiltered
Summaries
Synopses
Syntheses
Computerized decision support
Evidence-based textbooks or EB-CPG
Evidence-based journal abstracts
Systematic Reviews
Studies
Modified from R Brain Haynes et al.: ACP Journal Club Nov/Dec 2006 | Vol 145 • Number 34;A8-A9.
5S Levels
Systems
Prefiltered
Summaries
Synopses
Syntheses
Studies
Computerized decision support
Evidence-based textbooks or EB-CPG
Evidence-based journal abstracts
Systematic Reviews
Original journal articles
Modified from R Brain Haynes et al.: ACP Journal Club Nov/Dec 2006 | Vol 145 • Number 34;A8-A9.
檢索策略
找到關鍵字(PICO)
 判斷問題類型─etiology,
diagnosis, therapy,
prognosis
 使用布林邏輯─and, or, not
 快速查詢較高證據文獻
─Clinical Queries

Uncertainty → PICO 問題

In patients with primary
hypertension, are beta blockers
more effective than placebo or
other antihypertensive drugs for
reducing stroke, myocardial
infarction, and all cause mortality?
問題類型: Therapy
Patient /
Problem
primary hypertension
Intervention
beta blockers
Comparison
placebo or other
antihypertensive
drugs
Outcome
reducing stroke,
myocardial infarction,
and mortality
AND與OR的應用
AND(交集):將不同主題概念合併檢
索。
Ex:P and I and C and O
 OR(聯集):將同概念的主題、同義詞
或相似詞合併檢索。
Ex:P1 or P2 or P3… ; I1 or I2 or I3…
C1 or C2 or C3… ;O1 or O2 or O3…

hypertension
beta blockers
mortality
Atenolol
death
布林邏輯 AND
布林邏輯 OR
同時可以查詢到RCT
及Systematic review
的文獻
證據級數高低
Hierarchy of evidence
Syntheses
Studies
From: http://www.hsl.unc.edu/services/tutorials/ebm_searching/pages/intro.htm
篇數太多,看不完
3年內最新文獻
提高文獻相關性
篇數還是有點多
加入新的關鍵字,進一步提高
文獻相關性
檢索結果儲存
下拉Display settings選擇
Abstract
下拉Send to 選擇File
點選Advanced search
※將檢索步驟反白copy
※在檢索結果摘要檔中貼上History
提醒您…
證據資料需要update
 學習各種資料庫的搜尋方法



圖書館定期開課
多練習,熟能生巧
有如學開車,光有駕照不代表能上路,路徑的
熟悉度與路況的不同,影響開車之導向。
 臨床問題的種類、嚴重度、發生率與時間急迫
性,影響搜尋的策略。


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