Table 3.
Potential sources of confounding between intervention and control groups that are available within linked databases
| Category | Variable | Definition | Source | Years available |
| Socioeconomic status | Income | Household income | Census | 2006 and 2016 |
| SEFI | Material and social deprivation | MCHP repository | Annual | |
| Demographics | Age | Census | 2006 and 2016 | |
| Sex | Census | 2006 and 2016 | ||
| Ethnicity | Census | 2006 and 2016 | ||
| Immigration status | Census | 2006 and 2016 | ||
| Gentrification | Change in mean age neighbourhood | Taxation valuation of value of property | City of Winnipeg | 2008 to 2018 |
| Property value | ||||
| Built environmental factors that support physical activity | Greenspace | Distance to park (km) | DMTI/CANUE | 2006 and 2016 |
| Walkability | Population density, mixed land use and connectivity | CAN-ALE (CANUE) | 2006 and 2016 | |
| Fitness/recreation centres | Distance to centre | CANUE | 2006 and 2016 |
CANUE, Canadian Urban Environmental Health Research Consortium; DMTI, Digital Mapping company name; MCHP, Manitoba Centre for Health Policy; SEFI, Socioeconomic Factor Index.