SRDR Tools for Data Extraction and Creating Summary Tables
SRDR Quarterly Training Brown Evidence-based Practice Center
Brown University
July 25th, 2013 2:00pm-3:00pm
The Systematic Review Data Repository (SRDR™) was developed by the Brown Evidence-based Practice Center (EPC), Boston, Massachusetts, under contract with the Agency for Healthcare Research and Quality (AHRQ), Rockville, MD
(Contract No. HHSA 290-2007-10055-I & HHSA 290-2012-1200012-I ).
Presentation outline Objectives SRDR overview Part 1 – simple data export tool Part 11 – advanced data export tool Part 111 – managed reports tool Part 1V – study assignment tool Summary
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Objectives Provide a brief overview of the SRDR structure
and current features Discuss and demonstrate simple data
exporting tool Discuss and demonstrate advanced data
exporting tool Discuss and demonstrate managed reports
tool Discuss and demonstrate study assignment to
team members tool
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System Status System has been in development for nearly 3
years Website launched in June 2012 Hosted on the AHRQ server Trademarked as Systematic Review Data
Repository (SRDR™) SRDR is committed to a policy of open access. All
completed systematic review projects deposited in the SRDR archive are publically available under the terms of a Creative Commons license
Current data contributors are EPCs and other participating organizations (e.g., Cochrane, GIN, NICE)
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Data flow in systematic reviews
Screening titles/abstracts
Screening full-text articles
Data abstraction from eligible trials/studies
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Data flow in systematic reviews: Role of SRDR
Responses to screening titles/abstracts
Responses to screening full-text articles
Data abstracted from eligible trials/studies
Data forms using SRDR 7/25/13
Privileges of SRDR UsersPublic• Can view any published information within the database,
but cannot post comments.
Commentator• Privileges of public viewer • Can post comments on studies
Contributors• Contribute systematic review project data to SRDR• Privileges of commentator• Can modify any study they create under the project they
collaborate on
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Current status
# of users/projects: Current data contributors are EPCs and other
participating organizations (e.g., Cochrane, GIN, NICE) There are approximately 70 ongoing projects in the
system and 200 certified users.
Features: Interfaces for creating abstraction forms and abstracting
study data are in place, with improvements being continually implemented
Tools for data retrieval/summarization and sharing have been developed, with new features in the pipeline
Users support: Training materials including user manual, instructional
videos, and an FAQ are available in the Help section linked to the SRDR homepage
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Data forms using SRDR9
Principles in creating an SRDR abstraction form
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While the SRDR is very flexible and does not enforce how users create forms to meet one's (unique) needs. Minimizing variation on choice of words and format will ensure easy access to data by others
Thinking ahead when designing a form in SRDR: how you will use the data? what tables/analyses do you need? Are other members of your team clear on what needs to be
abstracted? how to ensure that other researchers will understand the form
you created and the data that you entered?
Steps for developing useful SRDR data forms Develop outline of evidence tables Identify and list data elements needed to
present in evidence tables Group data elements to facilitate data
collection process For each data element, identify optimal way of
asking the question to ensure correct data is collected
Set-up abstraction form in SRDR Develop plan to manage data after export
from SRDR
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SRDR tabs/sections to set up data forms
• Study characteristics Tab in SRDR Inclusion/exclusion criteria
of participants Study design characteristics
Interventions compared in the study
Outcomes assessed and analyzed in the study
Study quality/risk of bias
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Choosing between question types in SRDR
2. Can you or do you wish to specify all possible response options for the question?
1. Can you or do you wish to group together similar questions?
Yes
Yes
3. Should the abstractors select one option or multiple options in response to the question?
Single option
Multiple options
Matrix question
Question with dropdown, single, or multiple responses
No Non-matrix question
No Question with text box(es)
1. Responses listed in a drop-down menu
2. Only One Response Allowed
1. Select More Than One Answer
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Presentation outline Objectives SRDR overview Part 1 – simple data export tool Part 11 – advanced data export tool Part 111 – managed reports tool Part 1V – study assignment tool Summary
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Simple data export tool Complete data set is exported to Microsoft
Excel Worksheets divide the document into sections
of the associated extraction form One file is exported per extraction form Each study data may be represented by one
or more rows in the spreadsheet The Excel is storable and can be exported into
Access A refreshed copy of each project is cached for
download every 10 minutes Each download will have a timestamp
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Presentation outline Objectives SRDR overview Part 1 – simple data export tool Part 11 – advanced data export tool Part 111 – managed reports tool Part 1V – study assignment tool Summary
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Advanced data export tool Filter export table based on specific study
attributes Choose desired data fields for inclusion Great for summary table creation Example:
Give me all RCTs Containing Outcome A Containing Arms A and B Limit the output table to Mean and Standard Deviation
Matrix Filtering expedites the process of finding interesting combinations of attributes Study counts show prevalence of attributes in real-time
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Advanced data export toolTool live demonstration: Mapping project by different attributes
(arm/outcome; study design/outcome) Studies characteristics by design Patients baseline characteristic Study quality/Risk of bias Study results
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Presentation outline Objectives SRDR overview Part 1 – simple data export tool Part 11 – advanced data export tool Part 111 – managed reports tool Part 1V – study assignment tool Summary
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Managed reports tool Reports/tables can be saved as part of the
project record Upload tables to the SRDR
Share with team members Supplementary tables for the public view Safe-keeping
Re-generate reports using criteria from a previous run
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Presentation outline Objectives SRDR overview Part 1 – simple data export tool Part 11 – advanced data export tool Part 111 – managed report tool Part 1V – study assignment tool Summary
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Study Assignment Tool Reviews can commonly contain 100+ studies
Re-creating the studies in SRDR can be time-consuming
User management becomes difficult Double-extraction Re-shuffling assignments
Upload a tab-delimited file containing: study citations key questions addressed users assignments
Choose to let us do the work Provide a PubMed ID to have us fetch from NCBI Provide your own title and internal ID
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Presentation outline Objectives SRDR overview Part 1 – simple data export tool Part 11 – advanced data export tool Part 111 – managed reports tool Part 1V – study assignment tool Summary
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Summary Working to ease the burden of project
management Upload a spreadsheet providing SRDR with your
studies and let SRDR generate them for you User assignments lets you track which team
members are working on various studies Manage double-extraction and re-shuffle user
assignments when necessary My data is in, now help me get it back out
Export data to quickly gather Excel spreadsheets to your local disk
Use the Report Builder to generate customized tables highlighting the interesting features of your data
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