Mapping Physician Networks with Self-Reported and Administrative Data
- 26 April 2011
- journal article
- Published by Wiley in Health Services Research
- Vol. 46 (5), 1592-1609
- https://doi.org/10.1111/j.1475-6773.2011.01262.x
Abstract
Objective. To assess whether connections between physicians based on shared patients in administrative data correspond with professional relationships between physicians. Data Sources/Study Setting. Survey of physicians affiliated with a large academic and community physicians' organization and 2006 Medicare data from a 100 percent sample of patients in the Boston Hospital referral region. Study Design/Data Collection. We administered a web‐based survey to 616 physicians (response rate: 63 percent) about referral and advice relationships with physician colleagues. Relationships measured by this questionnaire were compared with relationships assessed by patient sharing, measured using 2006 Medicare data. Each physician was presented with an individualized roster of physicians' names with whom they did and did not share patients based on the Medicare data. Principal Findings. The probability of two physicians having a recognized professional relationship increased with the number of Medicare patients shared, with up to 82 percent of relationships recognized with nine shared patients, overall representing a diagnostic test with an area under the receiver‐operating characteristic curve of 0.73 (95 percent CI: 0.70–0.75). Primary care physicians were more likely to recognize relationships than medical or surgical specialists (p<.001). Conclusions. Patient sharing identified using administrative data is an informative “diagnostic test” for predicting the existence of relationships between physicians. This finding validates a method that can be used for future research to map networks of physicians.This publication has 15 references indexed in Scilit:
- Commentary—Contagion in Prescribing Behavior Among Networks of DoctorsMarketing Science, 2011
- Opinion Leadership and Social Contagion in New Product DiffusionMarketing Science, 2011
- Factors Affecting Influential Discussions Among Physicians: A Social Network Analysis of a Primary Care PracticeJournal of General Internal Medicine, 2007
- Evidence based guidelines or collectively constructed “mindlines?” Ethnographic study of knowledge management in primary careBMJ, 2004
- Physicians' Experiences and Beliefs Regarding Informal ConsultationJama-Journal Of The American Medical Association, 1998
- Response rates to mail surveys published in medical journalsJournal of Clinical Epidemiology, 1997
- Graph drawing by force‐directed placementSoftware: Practice and Experience, 1991
- Physician Referrals and the Medical Market PlaceMedical Care, 1991
- AN ALGORITHM FOR DRAWING GENERAL UNDIRECTED GRAPHSPublished by World Scientific Pub Co Pte Ltd ,1989
- The meaning and use of the area under a receiver operating characteristic (ROC) curve.Radiology, 1982