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The impact of sampling patients on measuring physician patient-sharing networks using Medicare data.

A James O'MalleyJukka-Pekka OnnelaNancy L KeatingBruce E Landon
Published in: Health services research (2020)
The sampling fraction applied to Medicare patients has a highly heterogeneous effect across different network measures on the extent to which sample-based network measures resemble those evaluated using the full cohort. Even random sampling of patients may yield physician networks that distort descriptive features of the network based on the full cohort, potentially resulting in biased results.
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