First-phase registry data | Second-phase interview and measurement data | ||||
---|---|---|---|---|---|
Type of design | Disease status | Residential area | Exposure | Exposure | Covariates |
1. No first-phase exposure data (method 1) | Individual | Individual | - | Individual | Individual |
2. First- and second-phase exposure data (method 2 and method 4) | Individual | Individual | Area | Individual | Individual |
3. No first-phase exposure data (method 3) | Individual | Individual | - | Individual | Individual |