2023
DOI: 10.21203/rs.3.rs-2534709/v1
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How do trial teams plan for retention during the design stage of the trial? A scoping review

Abstract: Background Retention to trials is important to ensure the results of the trial are valid and reliable. The SPIRIT guidelines (18b) require “plans to promote participant retention and complete follow-up, including list of any outcome data to be collected for participants who discontinue or deviate from intervention protocols” be included in trial protocols. The evidence for inclusion of this retention information in protocols is absent. The purpose of our scoping review is to establish if, and how, trial teams … Show more

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“…We recommend that when choosing a retention strategy, the suitability of the strategy to the target population should also be considered. Similar to ndings of our recent scoping review (37), among the PILs most retention strategies were generic retention strategies that did not speci cally target groups more 'at risk' of dropping out. This may need to be considered by trial teams going forward as there may be cultural and generational differences in preferences in terms of what would be deemed suitable strategies to use to promote participant retention.…”
Section: Recommendationssupporting
confidence: 77%
“…We recommend that when choosing a retention strategy, the suitability of the strategy to the target population should also be considered. Similar to ndings of our recent scoping review (37), among the PILs most retention strategies were generic retention strategies that did not speci cally target groups more 'at risk' of dropping out. This may need to be considered by trial teams going forward as there may be cultural and generational differences in preferences in terms of what would be deemed suitable strategies to use to promote participant retention.…”
Section: Recommendationssupporting
confidence: 77%