Table 2. Possible explanatory variables.
| Variable | Year | Data source |
|---|---|---|
| AOK Nordost insurants aged 45–64 (%) | 2012 | AOK Nordost database |
| AOK Nordost insurants aged 65 and older (%) | 2012 | AOK Nordost database |
| Insurants with migration background (%) | 2012 | AOK Nordost database |
| Area deprivation | 2010 | Helmholtz Zentrum München |
| Married persons (%) | 2011 | Census 2011 for Germany |
| Unmarried persons (%) | 2011 | Census 2011 for Germany |
| Divorced persons (%) | 2011 | Census 2011 for Germany |
| Widowed persons (%) | 2011 | Census 2011 for Germany |
| Average household size | 2011 | Census 2011 for Germany |
| One-person-households (%) | 2011 | Census 2011 for Germany |
| Average distance to GPs | 2012 | AOK Nordost database |
| Inhabitants per GPs | 2012 | AOK Nordost database |
| Fine particulate matter | 2012 | Environment research institute |
| Traffic load | 2012 | federal highway research institute |
| Average distance to highways and main streets | 2012 | OpenStreetMap |