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Evidence Synthesis in Medicine and Health

Overview of types of literature reviews

 

Types of Questions

 Clinical (Foreground) questions:

  • need focused information that addresses specific diagnostic approach or treatment regimen for clinical decision making

 Exploratory quesitons:

  • to discover what is known about a topic
  • what are gaps in research related to the topic
  • where does the research need to go
Questions might investigate: prevention, cost-effectiveness, quality of life, clinical findings, prognosis, aetiology, or therapy, among others. The question asked determines the types of evidence searched.

PICO

PICO Framework

Patient, Population, Problem

  • Who is the patient or population of interest? What is the problem/issue/condition?
  • What clinical terms describe the patient or population?
  • What clinical terms describe the problem the patient is experiencing?

Intervention

  • What strategy/steps are you considering? (diagnosis, treatment, prevention, etc.)
  • What options do you have?
  • How specific can you be about your plan?

Comparison

  • Are there alternatives to what you are considering?
  • Is there comparative research on treatment options?
  • What would you do if you did not take the steps you plan to?

Outcome

  • What result or outcome is most important to your patient?
  • What result or outcome do you think is realistic?
  • What outcomes are reported in the literature for different treatment options?

PICOs

PICOS

P   Patient Population

I    Intervention OR Exposure

Comparator Group

Outcome OR Endpoint

Study Design

 

PICOT

P   Patient Population

I    Intervention OR Exposure

Comparison

Outcome OR Endpoint

Time

 

Interdisciplinary

WWH

  • W  Who
  • W  What
  • H   How

Policy and Services

ECLIPSE

  • Expectation - what needs to be changed or improved?
  • Client Group - Audience
  • Location
  • Impact
  • Professionals - stakeholders
  • Service

Public Health

PEO

  • P  Population
  • E  Exposure
  • O  Outcome

Social Sciences

SPICE

  • S  Setting
  • P  Perspective
  • I   Intervention or exposure
  • C  Comparison
  • E  Evaluation

SPIDER

  • S  Sample
  • PI Phenomenon of Interest
  • Design
  • E  Evaluation
  • R  Study Type

PICo

  • Population or Problem
  • I   Phenomenon of Interest
  • Co Context

Mixed Methods Research

SPIDER

  • S  Sample
  • PI Phenomenon of Interest
  • Design
  • E  Evaluation
  • R  Study Type