Comparison group selection in the presence of rolling entry for health services research: Rolling entry matching

ConclusionsIn nonrandomized interventions, valid inference regarding intervention effects relies on the suitability of the comparison group to act as the counterfactual case for the intervention group. When participants enter over time, comparison group selection is complicated. Rolling entry matching is a possible solution for comparison group selection in rolling entry interventions that is particularly useful with small sample sizes and merits further investigation in a variety of contexts.

Source: Health Services Research - November 9, 2018 Category: Health Management Authors: Allison Witman, Christopher Beadles, Yiyan Liu, Ann Larsen, Nilay Kafali, Sabina Gandhi, Peter Amico, Thomas Hoerger Tags: METHODS ARTICLE Source Type: research