Table 4.
Differences in Diagnostic Test Characteristics for US-Born PLWH Estimated Directly From Latent Class Analysis Using Standard US Cutoffs at 4.7% Estimated LTBI Prevalence
| Test Combination | Difference (95% CrI) |
|---|---|
| Sensitivity: | |
| TST vs QFT | −18.0% (−31.8 to −4.1) |
| TST vs TSPOT | 2.2% (−11.5 to 15.2) |
| QFT vs TSPOT | 20.2% (5.2 to 35.3) |
| Specificity: | |
| TST vs QFT | 0.2% (−1.2 to 1.7) |
| TST vs TSPOT | −3.0% (−4.1 to −2.0) |
| QFT vs TSPOT | −3.2% (−4.5 to −2.0) |
| PPV: | |
| TST vs QFT | −5.3% (−18.8 to 7.8) |
| TST vs TSPOT | −44.5% (−58.5 to −29.1) |
| QFT vs TSPOT | −39.3% (−54.5 to −22.4) |
| NPV: | |
| TST vs QFT | −0.9% (−1.7 to −.2) |
| TST vs TSPOT | 0.1% (−.6 to .7) |
| QFT vs TSPOT | 0.9% (.2 to 1.9%) |
Bold font indicates a statistically significant mean difference.
Abbreviations: Crl, credible interval; LTBI, latent tuberculosis infection; NPV, negative predictive value; PLWH, people living with human immunodeficiency virus; PPV, positive predictive value; QFT, QuantiFERON Gold In-Tube; TSPOT, T-SPOT.TB; TST, tuberculin skin test.