2. G.I.S. CMG Buttery MD MPH Copyright 1996-98 © Dale Carnegie & Associates, Inc.

3. What is GIS Graphic expression of distribution of data. in relation to a Geographic Attribute 1.Census Tract or Zip Code 2.CountyCounty 3.Street AddressStreet Address 4.State

4. Who was the first GIS user? Romans –They removed troops from swamps on the summer Military – They planned their battles with maps. John Snow who mapped the distribution of choleraJohn Snow Census Bureau in the Early 60s – John Deshaies CMGB in the Early 70s, with Ruell Waldrop of CDC.

5. Historical development of GIS Dots Maps Hatch Maps Developed with Graphics Basic Developed with Fortran Developed with Geographic Designators 1.Latitude 2.Longitude

6. GIS Tools Software –AtlasAtlas –ArcView-GISArcView-GIS –MapInfoMapInfo –AutoCAD MAPAutoCAD MAP –MapPointMapPoint –Directions Magazine (Internet)Directions Magazine

7. Gathering Information What do you want to map? Incident Data –Rate Data –Comparative Data –Demographic Data –Environmental Data

8. Where is the data? Local health department files Local institutional files State health department National Center for Health Statistics Census Bureau Survey Laboratories

9. Content Providers GIS Videocast from CDCGIS Videocast Claritas ESRI

10. Data Issues Comparability –ICD 9 vs. ICD 10 US vs. Other Countries –Infant death definition Street Labels Data Acquisition purposes.