The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.
Serial Testing of Health Care Workers for Tuberculosis Using Interferon-γ Assay
Open accessAbstract
RATIONALE: Although interferon-gamma (IFN-gamma) assays are promising alternatives to the tuberculin skin test (TST), their serial testing performance is unknown. OBJECTIVE: To compare TST and IFN-gamma conversions and reversions in healthcare workers. METHODS: We prospectively followed-up 216 medical and nursing students in India who underwent baseline and repeat testing (after 18 mo) with TST and QuantiFERON-TB Gold In-Tube (QFT). TST conversions were defined as reactions greater than or equal to 10 mm, with increments of 6 or 10 mm over baseline. QFT conversions were defined as baseline IFN-gamma less than 0.35 and follow-up IFN-gamma greater than or equal to 0.35 or 0.70 IU/ml. QFT reversions were defined as baseline IFN-gamma greater than or equal to 0.35 and follow-up IFN-gamma less than 0.35 IU/ml. RESULTS: Of the 216 participants, 48 (22%) were TST-positive, and 38 (18%) were QFT-positive at baseline. Among 147 participants with concordant baseline negative results, TST conversions occurred in 14 (9.5%; 95% confidence interval [CI] = 5.3-15.5) using the 6 mm increment definition, and 6 (4.1%; 95% CI = 1.5-8.7) using the 10 mm increment definition. QFT conversions occurred in 17/147 participants (11.6%; 95% CI = 6.9-17.9) using the definition of IFN-gamma greater than or equal to 0.35 IU/ml, and 11/147 participants (7.5%; 95% CI = 3.8-13.0) using IFN-gamma greater than or equal to 0.70 IU/ml. Agreement between TST (10 mm increment) and QFT conversions (>or= 0.70 IU/ml) was 96% (kappa = 0.70). QFT reversions occurred in 2/28 participants (7%) with baseline concordant positive results, as compared with 7/10 participants (70%) with baseline discordant results (p < 0.001). CONCLUSIONS: IFN-gamma assay shows promise for serial testing, but repeat results need to be interpreted carefully. To meaningfully interpret serial results, the optimal thresholds to distinguish new infections from nonspecific variations must be determined.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
The Growing Burden of Tuberculosis: Global Trends and Interactions With the HIV Epidemic
Corbett, E. L., Watt, C. J., Walker, N., Maher, D., Williams, B. G., Raviglione, M. C., & Dye, C. (2003) · Archives of Internal Medicine · doi:10.1001/archinte.163.9.1009 · Cited by 2,553
(2005) · PsycEXTRA Dataset · doi:10.1037/e545842006-001 · Cited by 1,274
(2000) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.161.supplement_3.ats600 · Cited by 1,241
Interferon-γ assays in the immunodiagnosis of tuberculosis: a systematic review
Pai, M., Riley, L. W., & Colford, J. M. (2004) · The Lancet Infectious Diseases · doi:10.1016/s1473-3099(04)01206-x · Cited by 913
Self-citation(2005) · PsycEXTRA Dataset · doi:10.1037/e548692006-002 · Cited by 691
Specific Detection of Tuberculosis Infection: An Interferon-γ–based Assay Using New Antigens
Mori, T., Sakatani, M., Yamagishi, F., Takashima, T., Kawabe, Y., Nagao, K., Shigeto, E., Harada, N., Mitarai, S., Okada, M., et al. (2004) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.200402-179oc · Cited by 657
Interpretation of Repeated Tuberculin Tests: Boosting, Conversion, and Reversion
MENZIES, D. (1999) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.159.1.9801120 · Cited by 488
Self-citationTuberculosis among Health Care Workers
Menzies, D., Fanning, A., Yuan, L., & Fitzgerald, M. (1995) · New England Journal of Medicine · doi:10.1056/nejm199501123320206 · Cited by 378
Self-citationTuberculosis; a comprehensive international approach
(1994) · International Journal of Biochemistry · doi:10.1016/0020-711x(94)90047-7 · Cited by 344
Comparison of Tuberculin Skin Test and New Specific Blood Test in Tuberculosis Contacts
Brock, I., Weldingh, K., Lillebaek, T., Follmann, F., & Andersen, P. (2004) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.200402-232oc · Cited by 333
Cited by
Lewinsohn, D. M., Leonard, M. K., LoBue, P. A., Cohn, D. L., Daley, C. L., Desmond, E., Keane, J., Lewinsohn, D. A., Loeffler, A. M., Mazurek, G. H., et al. (2017) · Clinical Infectious Diseases · doi:10.1093/cid/ciw694 · Cited by 992
Self-citationMenzies, D., Pai, M., & Comstock, G. (2007) · Annals of Internal Medicine · doi:10.7326/0003-4819-146-5-200703060-00006 · Cited by 984
Self-citationGamma Interferon Release Assays for Detection of Mycobacterium tuberculosis Infection
Pai, M., Denkinger, C. M., Kik, S. V., Rangaka, M. X., Zwerling, A., Oxlade, O., Metcalfe, J. Z., Cattamanchi, A., Dowdy, D. W., Dheda, K., et al. (2014) · Clinical Microbiology Reviews · doi:10.1128/cmr.00034-13 · Cited by 886
Self-citationComparison of Two Interferon-γ Assays and Tuberculin Skin Test for Tracing Tuberculosis Contacts
Arend, S. M., Thijsen, S. F. T., Leyten, E. M. S., Bouwman, J. J. M., Franken, W. P. J., Koster, B. F. P. J., Cobelens, F. G. J., van Houte, A.-J., & Bossink, A. W. J. (2007) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.200608-1099oc · Cited by 255
Metadata
- Authors
- Pai, M., Joshi, R., Dogra, S., Mendiratta, D. K., Narang, P., Kalantri, S., Reingold, A. L., Colford, J. M., Riley, L. W., & Menzies, D.
- Venue
- American Journal of Respiratory and Critical Care Medicine
- Publisher
- Oxford University Press (OUP)
- Published
- 2006-08-01
- Volume
- 174
- Issue
- 3
- Pages
- 349-355
- ISSN
- 1073-449X (ISSN-L)
- 1535-4970
- OpenAlex
- W2028144733
- Cited by
- 275
- References
- 21
- FWCI
- 17.01
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Serial Testing of Health Care Workers for Tuberculosis Using Interferon-γ Assay. https://app.cochat.ai/papers/10.1164/rccm.200604-472oc
- The paper
- Pai, M., Joshi, R., Dogra, S., Mendiratta, D. K., Narang, P., Kalantri, S., Reingold, A. L., Colford, J. M., Riley, L. W., & Menzies, D. (2006). Serial Testing of Health Care Workers for Tuberculosis Using Interferon-γ Assay. American Journal of Respiratory and Critical Care Medicine. https://doi.org/10.1164/rccm.200604-472oc
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.