TABLE 1.
Sensitivity and specificity of the Determine Rapid Syphilis TP assay by reader type with the TPHA as the reference standarda
| Reader | TPHA positive (n = 250)
|
TPHA negative (n = 300)
|
||
|---|---|---|---|---|
| No. determine positive | % Sensitivity (95% CIb) | No. determine negative | % Specificity (95% CI) | |
| Laboratorian 1c | 244 | 97.6 (94.6-98.8) | 292 | 97.3 (94.6-98.6) |
| Laboratorian 2c | 246 | 98.4 (95.6-99.4) | 287 | 95.7 (92.9-97.7) |
| Nursed | 241 | 95.6 (93.2-96.2) | 289 | 96.3 (93.4-98.3) |
a
Five hundred fifty samples were tested; 17 TPHA-indeterminate results are not included.
b
CI, confidence interval.
c
All TPHA-indeterminate results were read as negative.
d
Fifteen of 17 indeterminate TPHA results were read as negative.