TABLE 2.
Sensitivity and specificity of the Determine Rapid Syphilis TP assay by reader type with the TPHA and the VDRL test as the reference standarda
| Reader | % sensitivity (95% CIb)
|
% Specificity (95% CI), TPHA and VDRL nega- tive (n = 300) | |
|---|---|---|---|
| TPHA and VDRL positive (n = 195) | TPHA positive VDRL negative (n = 53) | ||
| Laboratorian 1 | 97.9 (94.4-99.2) | 96.2 (85.0-99.0) | 97.3 (94.6-98.6) |
| Laboratorian 2 | 98.5 (95.1-99.4) | 98.1 (86.3-99.7) | 95.7 (92.9-97.7) |
| Nurse | 96.9 (93.6-98.9) | 94 (82.5-98.0) | 96.3 (93.4-98.3) |
a
Five hundred fifty samples were tested; 17 TPHA-indeterminate results were not included.
b
CI, confidence interval.