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

ABSTRACT: To investigate the impact of sampling patients on descriptive characteristics of physician patient-sharing networks. Medicare claims data from 10 hospital referral regions (HRRs) in the United States in 2010. We form a sampling frame consisting of the full cohort of patients (Medicare enrollees) with claims in the 2010 calendar year from the selected HRRs. For each sampling fraction, we form samples of patients from which a physician ("patient-sharing") network is constructed in which an edge between two physicians depicts that at least one patient in the sample encountered both of those physicians. The network is summarized using 18 network measures. For each network measure and sampling fraction, we compare the values determined from the sample and the full cohort of patients. Finally, w

SUBMITTER: O'Malley AJ 

PROVIDER: S-EPMC7968944 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature