Preliminary type | Type 1 | Type 2 | Type 3 | Type 4 | Type 5 |
Preliminary term | Lost to follow-up | Retention in care | Gap in follow-up care | Unsuccessful transfer | Untraceability |
Preliminary conceptual definition | No show or not being seen for a clinic visit within a defined time period and within a defined context | Attending a clinic visit within a defined time period and within a defined context | A defined time interval between clinic visits within a defined context | Not attending a clinic visit within a defined context after transfer | Failure to make contact due to lack of information |
Agreement percentage | 50% | 91% | 42% | 75% | 83% |