Variation in proficiency testing performance by testing site.

  title={Variation in proficiency testing performance by testing site.},
  author={T M Stull and Thomas L. Hearn and John S Hancock and James H Handsfield and Christy L Collins},
  volume={279 6},
CONTEXT Congress enacted the Clinical Laboratory Improvement Amendments of 1988 (CLIA) to promote uniform quality and standards among all testing sites in the United States. The performance indicators specified in the legislation are proficiency testing (PT) performance and periodic inspections. OBJECTIVE To evaluate variation in PT performance by type of testing facility during the first year of compulsory participation under CLIA. DESIGN All 1994 PT score data electronically reported to… CONTINUE READING
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