Volume 13, Number 4—April 2007
Research
Diagnosis of Tuberculosis by an Enzyme-Linked Immunospot Assay for Interferon-γ
Jann-Yuan Wang, Chien-Hong Chou, Li-Na Lee, Hsiao-Leng Hsu, I-Shiow Jan, Po-Ren Hsueh
, Chuan-Liang Kao, and Kwen-Tay Luh
, Chuan-Liang Kao, and Kwen-Tay Luh
Table 2
Correlation between results of enzyme-linked immunospot (ELISPOT) assay and diagnosis of 65 patients suspected of having tuberculosis (TB), Taiwan, 2005
| Results of acid-fast smears (no. samples) | No. samples |
Sensitivity (%) | Specificity (%) | Predictive value (%) |
|||||
|---|---|---|---|---|---|---|---|---|---|
| TB (n = 39) |
No TB (n = 26) |
||||||||
| Positive | Negative | ||||||||
| ELISPOT (+) | ELISPOT (–) | ELISPOT (+) | ELISPOT (–) | ||||||
| Positive (33) | 19 | 3 | 3 | 8 | 86.4 | 72.7 | 86.4 | 72.7 | |
| Negative (32) | 15 | 2 | 0 | 15 | 88.2 | 100 | 100 | 88.2 | |
| Total (65) | 34 | 5 | 3 | 23 | 87.2 | 88.5 | 91.9 | 82.1 | |
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