(n=1147) | | TPPA plasma | |
---|
| | Positive | Negative | Total |
---|
DBS TPPA | Positive | 169 | 10 | 179 |
| Negative | 8 | 960 | 968 |
| Total | 177 | 970 | 1147* |
- sensitivity of DBS against plasma 95.5% (95% CI: 91.3–98,0%).
- specificity of DBS against plasma 99.0% (95% CI: 98.1–99.5%).
- * excluding 34 indeterminate results.