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Related Experiment Videos

Six-year trends in laboratory computer availability.

Paul Valenstein1, Molly Walsh

  • 1Department of Pathology, St Joseph Mercy Hospital, Ann Arbor, MI 48106, USA. paul@valenstein.org

Archives of Pathology & Laboratory Medicine
|February 4, 2003
PubMed
Summary

Clinical laboratory computer downtime significantly decreased between 1995 and 2001. This improvement in system availability suggests progress in laboratory information system performance and reliability.

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Area of Science:

  • Clinical Laboratory Informatics
  • Health Information Technology
  • System Reliability Engineering

Background:

  • Clinical laboratory computer system failures disrupt workflow, charge capture, and patient care.
  • A 1995 survey highlighted significant interinstitutional variation in system availability.
  • No follow-up studies addressed laboratory computer system performance since 1995.

Purpose of the Study:

  • To quantify current laboratory computer availability.
  • To compare 2001 performance with 1995 data.

Main Methods:

  • Ninety-seven laboratories prospectively recorded computer downtime over 30 days in 2001.
  • Results were compared with data from a 1995 survey.
  • Analysis included institutions participating in both surveys.

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Main Results:

  • Median downtime episodes decreased from 8 (1995) to 3 (2001) per 30 days (P <.01).
  • Unscheduled downtime events and cumulative downtime also significantly reduced.
  • Improvements were observed across all performance quartiles and in institutions participating in both surveys.

Conclusions:

  • Laboratory computer downtime was less frequent in 2001 compared to 1995.
  • Overall industry performance for laboratory computer systems appears to be improving.
  • Software patch management may be associated with reduced downtime frequency.