Upload
walter-benson
View
217
Download
0
Embed Size (px)
Citation preview
ASPIRE CLASS 1: Conceiving the Research IdeaSarah J. Billups, PharmD, BCPS, Clinical Pharmacy Specialist Samuel Johnson, PharmD, BCPS (AQ Cardiology), Clinical Pharmacy Specialist
Learning Objectives
Class 1: Conceiving the Research Idea
ASPIRE
Write a research question that meets PICO & FINER criteria Formulate primary and secondary objectives Formulate study hypotheses and select outcome measures
for each objective Use a well-written study question to survey primary literature Identify an efficient process for reviewing articles and
managing references
Where Do Research Questions Come From?
Clinical practice Literature Institutional and clinical problems
Where Do Research Questions Come From?
Example Research Questions
How effective is a clinical pharmacy service in managing patients with diabetes?
Why do HMO patients take their prescriptions to outside (out of plan) pharmacies?
What are the benefits of Medication Management? Why don’t patients pick up their new
bisphosphonate prescriptions?
What Makes a Good Research Question?
PICO
Population
Intervention
Comparison Group
Outcome
What Makes a Good Research Question?
FINER
Feasibility
Interesting
Novel
Ethical
Relevant
Example Question
Does a home blood pressure monitoring program improve hypertension control?
8
Quality/ Completeness Check: PICO
Does a home blood pressure monitoring program improve hypertension control?
Population
Intervention
Comparison
Outcome
Quality/ Completeness Check: PICO
Does a home blood pressure monitoring program improve hypertension control?
Population—adult pts with a HTN diagnosis and uncontrolled HTN
Intervention—Pharmacist-managed HBPM program
Comparison—adult pts meeting inclusion criteria but not enrolled in program
Outcome—achieving target BP
Revised Question
Does a pharmacist-managed home blood pressure monitoring program increase the proportion of
hypertensive patients with uncontrolled BP who achieve their target blood pressure compared to similar patients
receiving usual care?
Example Question #2
Why don’t patients pick up their new bisphosphonate prescriptions?
12
Quality/ Completeness Check: PICO
Why don’t patients pick up their new bisphosphonate prescriptions?
Population
Intervention
Comparison
Outcome
Quality/ Completeness Check: PICO
Why don’t patients pick up their new bisphosphonate prescriptions?
Population—adult women who don’t purchase an oral bisphosphonate Rx within 90 days of its being written
Intervention— N/A
Comparison—patients who DO purchase their Rx…
Outcome—questionnaire responses
Revised Question
How do beliefs about osteoporosis and bisphosphonates differ between adult women with new prescriptions for oral bisphosphonates who do versus do not purchase their medication within 90 days of its being ordered?
Quality Check: FINER
Feasibility
Interesting
Novel
Ethical
Relevant
Knowledge Check
What does the ‘C’ stand for in PICO ?
a. Cohort
b. Context
c. Confounder
d. Comparison Group
Knowledge Check
What does the ‘C’ stand for in PICO ?
a. Cohort
b. Context
c. Confounder
d. Comparison Group
Elements of a Research Protocol
Background
Population
Design
Objectives
ProceduresAnalytical
Plan
Research Question
Objectives, Hypotheses, and Outcomes
Objective: – What you want to learn
Hypothesis– What results do you expect?
Outcome – How you plan to measure it
– Specific
Study Objectives (Study Aims)
What the study will achieve Guides thinking, study design, analysis, and reporting Serves as outline for organizing later sections– Methods section should follow parallel sequence
Can have multiple objectives; designate a primary and remainder as secondary or tertiary
Not too many!
Study Objectives: Example
Compare concerns about medication cost between patients with and without primary nonadherence (defined as those who did versus did not purchase a new bisphosphonate prescription within 90 days of its being written).
22
Study Hypothesis
Definition: prediction of the relationship between one or more factors and the problem under study
More specific than objectives and are amenable to explicit statistical evaluation
Guides how to conduct the statistics as the type of data collected/analyzed should be clear
Study Hypothesis
Most appropriate for intervention/evaluative studies– Difficult for descriptive/exploratory studies
At least 1 hypothesis for each objective – can have more than 1
Simple, specific, and stated in advance Stated as null or alternative– statistical analysis based on null hypothesis
Example
Objective: Compare concerns about prescription cost between
patients with and without primary non-adherence.
25
Example
Hypothesis:
Alternative: Patients with primary non-adherence will have more
concern about prescription costs than adherent patients
Null: Patients with and without primary non-adherence will
have the same level of concern about prescription costs
26
Study Outcome(s)
This is the specific thing you are going to measure
Example
Outcome: The proportion of patients in each group who express
that they are “very” or “somewhat” concerned about prescription cost in response to a telephone survey
28
Objective, Hypothesis, and Outcome
Objective: To identify the incidence of bisphosphonate primary
non-adherence over a 3 month period
Hypothesis:
Outcome: Among patients with a new oral bisphosphonate
prescription written between August 1 and October 31, 2012, the percent who do not purchase it within 90 days
Example 2
Knowledge Check
Knowledge Check
Classify the following statement :
High school students given two samples of cola will express a preference for Pepsi over Coke.
a. Study Objective
b. Null Hypothesis
c. Alternative Hypotheses
d. Study Outcome
Knowledge Check
Classify the following statement :
High school students given two samples of cola will express a preference for Pepsi over Coke.
a. Study Objective
b. Null Hypothesis
c. Alternative Hypotheses
d. Study Outcome
Elements of a Research Protocol
Background
Population
Design
Objectives
ProceduresAnalytical
Plan
Research Question
Researching Background: Goals
Understand what is already known about the subject and where there are holes
Learn how others have approached this problem Reveal limitations or holes in the existing literature
Broad statement of topic Review relevant published
literature Outline gaps in the literature
and why these gaps are important
End with research question/purpose statement
Building the Background
General Search Strategies
Start with your PICO question(s)
Establish preliminary search terms
Establish inclusion and exclusion criteria
Tips to insure a high-quality, systematic search:1) Use at least two databases2) Check references of studies meeting
inclusion criteria3) Check with content experts to make sure
relevant studies are not missed4) Search for ‘gray’ literature5) Avoid limiting searches by date6) Come up with a process for reference
management (manual or software assisted)
7) Record search history
Free Resources for Reference Management
1. PubMed: Register for a free NCBI Account
2. EndNote Web Version: Register for free access (1 year)
3. Manual management: Hey, whatever works!
PubMed Resources
Pros It’s free It’s easy to access Most people are familiar
with it
Cons It doesn’t include gray
literature Access to most full-texts
requires you to use a PC with a KPCO IP address
EndNote Web Resource
Pros It’s free It enables you to
maintain a comprehensive electronic reference list
It’s widely accessible
Cons It’s only free for 1 year The interface is not that
intuitive Not all functionality is
available on KP PCs
Manual Reference Management
Pros It’s free ;) Not vulnerable to IT
issues ;) It’s like retro, man
Cons
Once You Have References…
Determine which should be included (relevant) Devise a scheme for routinely updating reference list
(PubMed resources) Detail references in your protocol, posters, and
manuscript
Assessing Quality of Studies
Appropriate study design Application of appropriate statistical testing Identification of bias and conflicts of interest Meaningful synthesis of results Appropriate conclusions drawn Various published quality assessment tools are
available (email me if you are interested)
Sample Evidence Summary
Study N Design Inclusion criteria Intervention Comparator Outcomes Median
follow-up
Chacon, 2011 675 RCT
>18 yearsKP memberNormal Renal function
Bloodletting Leeches Syncope 30 days
Sample Evidence Table
More detailed than evidence summary May be used to fuel a SR and meta-analysis Screenshot example(s)
In summary…
Start with a good PICO question Record your search history, consult with content experts Devise a systematic way to review and store references (and
stick to it ;) Use free online resources to your advantage Recognize opportunities for ST and meta-analysis
– Evidence synthesis
– Development of guidelines or consensus statements
Class 1 Assignment
Begin background literature review for your study Prepare a 5-10 min presentation for your small group
session including draft versions of the following:– Your research question (use FINER and PICO criteria)
– Primary and secondary objectives
– A hypothesis and study outcome(s) for each objective
Please come prepared with the above items
Kaiser Permanente Central Support Services