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Articles by W. A Baumgartner
Total Records ( 2 ) for W. A Baumgartner
  Y Kano , W. A Baumgartner , L McCrohon , S Ananiadou , K. B Cohen , L Hunter and J. Tsujii

Summary: Due to the increasing number of text mining resources (tools and corpora) available to biologists, interoperability issues between these resources are becoming significant obstacles to using them effectively. UIMA, the Unstructured Information Management Architecture, is an open framework designed to aid in the construction of more interoperable tools. U-Compare is built on top of the UIMA framework, and provides both a concrete framework for out-of-the-box text mining and a sophisticated evaluation platform allowing users to run specific tools on any target text, generating both detailed statistics and instance-based visualizations of outputs. U-Compare is a joint project, providing the world's largest, and still growing, collection of UIMA-compatible resources. These resources, originally developed by different groups for a variety of domains, include many famous tools and corpora. U-Compare can be launched straight from the web, without needing to be manually installed. All U-Compare components are provided ready-to-use and can be combined easily via a drag-and-drop interface without any programming. External UIMA components can also simply be mixed with U-Compare components, without distinguishing between locally and remotely deployed resources.

  E. S Weiss , J. G Allen , N. D Patel , S. D Russell , W. A Baumgartner , A. S Shah and J. V. Conte

Introduction— Single-institution series have suggested that men receiving orthotopic heart transplantation from female donors have decreased survival. No multi-institutional series has comprehensively addressed the issue of donor and recipient sex matching for both male and female orthotopic heart transplantation recipients.

Methods and Results— We used data from the multi-institutional prospectively collected United Network for Organ Sharing open transplantation cohort to review 18 240 adult patients who received orthotopic heart transplantation from 1999 to 2007. Four donor recipient strata were identified (male donor/male recipient, N=10 750; female donor/female recipient, N=2201; male donor/female recipient, N=2121; and female donor/male recipient, N=3168). The primary end point of all cause posttransplant mortality was compared among groups using a Cox proportional hazard regression model with additional propensity adjustment. Female recipients, irrespective of donor sex, had 3.6% lower overall survival at 5 years posttransplant (P=0.003). Men who received organs from male donors had the highest cumulative survival at 5 years (74.5%). Men receiving female hearts had a 15% increase in the risk of adjusted cumulative mortality (hazard ratio, 1.15; 95% CI, 1.02 to 1.30; P=0.02). No significant increase in the relative hazard for death occurred for women receiving opposite sex donor organs (1.24; 0.92 to 1.35; P=0.31).

Conclusions— The United Network for Organ Sharing data set has provided a large sample examining donor recipient sex pairing in orthotopic heart transplantation. Men receiving organs for same sex donors have significantly improved short- and long-term survival. No survival advantage was seen for women with same sex donors.

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