Building and using your Database

Transcription

1 Building and using your Database

2 Presenters John Clark Susan Fisher Operations Manager Operations Coordinator Stephanie Oppenheimer Amy Wahlquist SUCCESS Consultant Statistician Biostatistics and Epidemiology

3 Agenda Introduction Statistical considerations Importing of data Questions Graphical View and Stats Report Builder Questions REDCap User group

4 Some statistical considerations Things to think about who is answering the questions/doing the data input longitudinal vs. classic (and other options) types of questions you want to ask what information is PHI how to make it easy to enter data and for analysis at the end

5 Who is entering the data Lots of options Participant - directly into REDCap Participant - (from paper) and then someone else entering the data Study coordinator - directly into REDCap from participant visit (e.g., over the phone) Study coordinator - from previously existing sources (charts, labs, old Excel files, etc) Method can impact what type of REDCap database to create survey, classic, longitudinal, combination

6 Longitudinal vs. classic Same instruments/forms being used multiple times per patient Certain types of data only being collected one time Another option Survey followed by longitudinal database (e. g., screening a large number of participants and only enrolling a select number)

7 Types of questions Validation is important! Validate as much data as possible date/number/zip/ minimums and maximums number of decimals drop down boxes/radio buttons How do you handle missing data? leave blank include option for "did not answer" or "no data available"

8 Protected Health Information (PHI) Mark identifiable information MRN, name, dob, all dates Use Check for Identifiers Tool Exporting privileges de-identified all data

9 Make it easier on you and your statistician Variable name considerations scq1-scq40 vs. short description of question Think about outcomes/questions you want to ask Think about how/when questions will be asked Meet with your statistician first!

10 Importing of Data Consideration: Why? Does it already live somewhere? Excel or Access - probably Existing DB system - probably not At or near completion? Does it just need to be analyzed? Give data to your statistician To provide access? ing PHI a no-no Filelocker.musc.edu REDCap Send-It

11 Still want to import data? Options MUSC Enterprise Data Warehouse DTS (Data Transfer Service) automated upload adjudication required fee-for-service - unique to each project cleared through IRB Data Dump (CSV) You already have the data from somewhere Requested dump from warehouse API - Application Programming Interface

12 Importing data from data dump Understand your data structure See source data first! Build data dictionary from variable names online or excel Use data import template rows or columns

13 Importing data from data dump (Simple) Example - VIDEO 1. Download Data Import Template (rows) 2. Open source data file 3. Copy / Paste to Template 4. Upload your CSV file 5. Data Review

14 Questions Limit to 5 minutes Please send to redcap@musc.edu

15 Graphical View and Stats You've collected data - now what? REDCap offers basic graphs and stats Limited options, but gives overview of data Allows for identification of missing data Quick way to identify potentially incorrect data Found under 'Applications'

16 Available Graphical Views View as either Pie or Bar Graph Shows breakdown of predefined choices

17 Available Graphical Views Scatter Plots - Show validated numerical data Quickly see trends or common answers Quickly notice outliers

18 Benefits of Graphical Views Quickly identify outliers Determine potentially wrong data Can click on data point to go to the record Data can be verified and corrected if needed Identify records with missing data points

19 Shortcomings of Graphical Views Graphs display all records in a project Unable to drill down into a particular subset of records Only works for questions with predefined choices or validated numbers Simple graphs Anything more complex, use a stats program

20 Available Stats Data Offers basic statistical analysis Percentages Mean, Median, Mode Standard Deviation Min and max

21 Using Graphs and Data Graphs can be used elsewhere - in Word or Powerpoint There is no 'save' or 'export' option Use screen shots to capture the graph for use elsewhere Mac OS: 'Grab' application or Cmd-Shift-4 Windows 7: Snipping Tool Select text/graph - Print Selection to PDF

22 Report Builder

23 Report Builder Summary Start from the end. Include reporting needs in database design Consider: Creating a field for selecting event name in longitudinal model Creating a field for selecting date categories Sometimes it's best to export to Excel Need assistance? redcap@musc.edu for questions SPARC for consultations (

24 Questions

25 REDCap User Group Proposal Once a month or more frequently User-on-user help Real examples and projects You set the agenda like today We host Suggestions and to join: redcap@musc.edu Survey to follow - please sign in Set up forum ---

26 Thanks to... Aimee McRae-Clark for letting us use her graphical views and stats Mary Mauldin for continuing to ask us to give presentations Biostats and Amy Wahlquist for our first collaborative presentation Bioengineering for allowing us to use this great classroom