TABLE 2.
Summary of improved reproducibility following procedural changes for the Abbott LCx C. trachomatis and N. gonorrhoeae tests
| Parameter | Results:
|
|
|---|---|---|
| Before changes | After changes | |
| No. of samples | 14,420 | 7,728 |
| No. of repeats | 181 | 514a |
| No. of discrepant results/no. of repeats (%) | 30/181 (17) | 13/514 (2.5) |
| No. of discrepant results detected by the Abbott equivocal range/total no. of discrepant results (%) | 5/30 (17) | 6/13 (46) |
| Mean difference (S/CO ratio [n]) between pairs of results | ||
| Urine | 2.0 (14) | 1.9 (2) |
| Swabs | 0.88 (16) | 0.49 (11)b |
a
Includes 475 urine specimens that were tested in duplicate.
b
Differs significantly (P < 0.05) from values before changes.