Aaron Sorensen

Learn More
In the 2 months immediately after a premium rate increase, the Genesee Valley Group Health Association (Group Health) lost over 600 subscriber contracts. A survey was conducted to determine the reasons for disenrollment and compare the demographic and utilization characteristics of disenrollees with those of all members during the previous calendar year.(More)
To determine the characteristics of physicians who move into and out of rural areas, as well as their reasons for establishing or leaving such practices, we sent questionnaires to 67 physicians who began practice in selected rural counties in upstate New York and 88 physicians who left practices in roughly the same area. From the 52 physicians (77.6 per(More)
Admission screening and certification systems for utilization review are based on acceptance of attending physicians' admitting diagnosis. This study was conducted to: 1) determine the consistency of admission diagnosis as compared to discharge diagnosis: i) identify the characteristics of patients and diagnoses subject to higher rates of diagnostic(More)
The PaTH (University of Pittsburgh/UPMC, Penn State College of Medicine, Temple University Hospital, and Johns Hopkins University) clinical data research network initiative is a collaborative effort among four academic health centers in the Mid-Atlantic region. PaTH will provide robust infrastructure to conduct research, explore clinical outcomes, link with(More)
Huntington's disease (HD), research has grown dramatically over the last 25 years of research to the point where an analysis of productivity is warranted. We have compiled a list of the 100 most-cited researchers in HD together with H-Indices as a means to assess productivity and impact over the last 25 years. We also present a table of the most cited(More)