Previous uptake in 1st round | Previous uptake in 2nd round | Description | |
---|---|---|---|
Subgroups in 2nd round | |||
Previous Responders | Screened | – | 1st invitation to 1st incidence screening |
Previous Non-Responders | Not screened | – | 2nd prevalence screening invitation |
Subgroups in 3rd round | |||
Consistent Screeners | Screened | Screened | 1st invitation to 2nd incidence screening |
Late Entrants | Not screened | Screened | 1st invitation to 1st incidence screening |
Dropouts | Screened | Not screened | 2nd invitation to 1st incidence screening |
Consistent Non-Responders | Not screened | Not screened | 3rd prevalence screening invitation |