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Fewer active visits do not automatically preserve the ability to contact participants in an implant investigation. Site closure, staff turnover or relocation can lead to missing long-term findings. Translate continuity into assigned tasks early in planning.
Define the assessment
Define the follow-up purpose, contact frequency and information needed. Use contact routes permitted by participants; collecting more personal information does not necessarily improve follow-up. Explain the differences between clinical care, research assessments and emergency contact arrangements.
Worked example
For example, a participant moves to another city as the site team changes. A recent call entry appears reassuring, but responsibility was never transferred. The coordinator verifies follow-up status, permitted contact routes and local care connections. Missed assessments remain visibly missing rather than being completed as though they occurred.
Practical checks
- Assign responsibility for updating contact details and controlling authorised access.
- Reconcile individual open follow-ups during site or personnel transitions.
- Distinguish inability to contact from death, withdrawal and other follow-up states.
Decision and limitations
The plan should explain what the team may seek years later and under which permissions. Respect participant preferences and local privacy requirements. Consider possible differences among people lost to follow-up when interpreting findings; call counts alone do not establish follow-up quality.
Frequently asked questions
- Do more calls mean better follow-up?
- No. Valid assessments, participant preferences and explanations of missing follow-up all matter.
- Does site closure end follow-up?
- Not automatically. Assess remaining responsibilities and appropriate transfer arrangements against the investigation plan.