Diagnostic value of the interferon-γ release assay for tuberculosis infection in patients with Behçet's disease
BACKGROUND: To investigate the diagnostic value of the interferon-γ release assay (IGRA) for detecting tuberculosis (TB) infection in patients with Behçet's disease (BD).
METHODS: We retrospective analyzed the data collected from 173 BD patients hospitalized between 2010 and 2015. Ninety-nine healthy volunteers were enrolled as a control group. IGRA was performed using T-SPOT.TB. The diagnosis of active TB (ATB) was based on clinical, radiological, microbiological, histopathological information and the response to anti-TB therapy. Latent TB (LTB) infection was defined as asymptomatic patients with positive T-SPOT.TB.
RESULTS: TB infection was documented in 59 BD patients (34.1%). The sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio and negative likelihood ratio of T-SPOT.TB for the diagnosis of ATB were 88.9%, 74.8%, 29.1%, 98.3%, 3.53 and 0.15, respectively. The receiver-operating-characteristic curve demonstrated that spot-forming cells (SFCs) of 70/106 PBMC was the optimal cutoff for diagnosing ATB, with an area under the curve of 0.891. Furthermore, the median SFCs in ATB group was significantly higher than those in LTB infection (466/106 PBMC vs. 68/106 PBMC, p = 0.007) or previous TB infection (466/106 PBMC vs. 96/106 PBMC, p = 0.018). A significant discrepancy between T-SPOT.TB and tuberculin skin test was noted (kappa coefficient = 0.391, p = 0.002).
CONCLUSIONS: T-SPOT.TB, an IGRA, may assist in the diagnosis of ATB in BD patients, and the higher SFCs suggest ATB in BD patients.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
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| Enthalten in: |
BMC infectious diseases - 19(2019), 1 vom: 15. Apr., Seite 323 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wu, Xiuhua [VerfasserIn] |
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| Links: |
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| Themen: |
Behçet’s disease |
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| Anmerkungen: |
Date Completed 05.07.2019 Date Revised 25.02.2020 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1186/s12879-019-3954-y |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM296084344 |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: To investigate the diagnostic value of the interferon-γ release assay (IGRA) for detecting tuberculosis (TB) infection in patients with Behçet's disease (BD) | ||
| 520 | |a METHODS: We retrospective analyzed the data collected from 173 BD patients hospitalized between 2010 and 2015. Ninety-nine healthy volunteers were enrolled as a control group. IGRA was performed using T-SPOT.TB. The diagnosis of active TB (ATB) was based on clinical, radiological, microbiological, histopathological information and the response to anti-TB therapy. Latent TB (LTB) infection was defined as asymptomatic patients with positive T-SPOT.TB | ||
| 520 | |a RESULTS: TB infection was documented in 59 BD patients (34.1%). The sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio and negative likelihood ratio of T-SPOT.TB for the diagnosis of ATB were 88.9%, 74.8%, 29.1%, 98.3%, 3.53 and 0.15, respectively. The receiver-operating-characteristic curve demonstrated that spot-forming cells (SFCs) of 70/106 PBMC was the optimal cutoff for diagnosing ATB, with an area under the curve of 0.891. Furthermore, the median SFCs in ATB group was significantly higher than those in LTB infection (466/106 PBMC vs. 68/106 PBMC, p = 0.007) or previous TB infection (466/106 PBMC vs. 96/106 PBMC, p = 0.018). A significant discrepancy between T-SPOT.TB and tuberculin skin test was noted (kappa coefficient = 0.391, p = 0.002) | ||
| 520 | |a CONCLUSIONS: T-SPOT.TB, an IGRA, may assist in the diagnosis of ATB in BD patients, and the higher SFCs suggest ATB in BD patients | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Behçet’s disease | |
| 650 | 4 | |a Interferon-γ release assay | |
| 650 | 4 | |a T-SPOT.TB | |
| 650 | 4 | |a Tuberculosis | |
| 700 | 1 | |a Chen, Pang |e verfasserin |4 aut | |
| 700 | 1 | |a Wei, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Mengyu |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Chaoran |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Jinjing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Lidan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Lifan |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Zeng, Xiaofeng |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xiaoqing |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Wenjie |e verfasserin |4 aut | |
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