Table 1.
Smallest Level of Aggregation and Dates for Linked Individual-Level and Geographic Data Sources
| Level of Aggregation |
||||||
|---|---|---|---|---|---|---|
| Nearest | Census | Census | Census | |||
| Category of Data | Address | Intersection | Blockface | Block | Blockgroup | Tract |
| Individual-level Data | ||||||
| Firearm injury case data (2003-2005) | X | |||||
| Police data (2003-2005) | X | |||||
| Medical examiner data (2003-2005) | X | |||||
| Hospital data (2003-2005) | X | |||||
| Population-based control data (2003-2005) | X | |||||
| Geographic Data | ||||||
| Firearm availability and dealer data (2002-2006) | X | X | ||||
| Alcohol and drug data (2003-2005) | X | X | X | X | ||
| Fast food and grocery data (2003-2005) | X | |||||
| Crime and public safety data (2002-2006) | X | X | ||||
| Social capital data (2002, 2004, 2006) | X | |||||
| Land use data (2003-2005) | X | X | ||||
| Demographic data (2004) | X | X | X | |||