Attrition in longitudinal randomized controlled trials: home visits make a difference
Open Access
- 23 November 2012
- journal article
- research article
- Published by Springer Science and Business Media LLC in BMC Medical Research Methodology
- Vol. 12 (1), 178
- https://doi.org/10.1186/1471-2288-12-178
Abstract
Participant attrition in longitudinal studies can introduce systematic bias, favoring participants who return for follow-up, and increase the likelihood that those with complications will be underestimated. Our aim was to examine the effectiveness of home follow-up (Home F/U) to complete the final study evaluation on potentially “lost” participants by: 1) evaluating the impact of including and excluding potentially “lost” participants (e.g., those who required Home F/U to complete the final evaluation) on the rates of study complications; 2) examining the relationship between timing and number of complications on the requirement for subsequent Home F/U; and 3) determining predictors of those who required Home F/U.Keywords
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