Volume 8, Number 11—November 2002
THEME ISSUE
Tuberculosis Genotyping
Tuberculosis Genotyping Network, United States
Quality Assessment of Mycobacterium tuberculosis Genotyping in a Large Laboratory Network
Christopher R. Braden*
, Jack T. Crawford*, and Barbara A. Schable*
, Jack T. Crawford*, and Barbara A. Schable*
Table 1
Percent of restriction fragment length polymorphism images matching reference patterna for all isolates in quality assessment panels
| Panel 1 % (16 isolates, 124 images) | Panel 2 % (8 isolates, 53 images) | Panel 3 % (13 isolates, 103 images) | All panels % (37 isolates, 280 images) | |
|---|---|---|---|---|
| Match | 73 | 85 | 66 | 73 |
| Match ±1b | 91 | 98 | 85 | 90 |
| Match ±2b | 98 | 98 | 96 | 97 |
aReference pattern was the pattern that matched exactly in the greatest number of laboratories.
bMatch ±1, exact match with the exception of one band; match ±2, exact match with the exception of two bands.
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