Research Article
Evaluation of Lateral-Flow Assay for Rapid Detection of Influenza Virus
Table 3
Subgroup analysis results.
| | Subgroup analysis | Number of studies | Sensitivity (95% CI) | | Specificity (95% CI) | |
| | Group A | | | | | | | Nasal swab | 6 | 0.88 (0.85-0.91) | 90.5% | 0.97 (0.95-0.98) | 15.8% | | Nasopharyngeal aspirates | 3 | 0.93 (0.88-0.96) | 90.6% | 0.88 (0.84-0.91) | 91.7% | | Nasopharyngeal swab | 7 | 0.82 (0.78-0.85) | 83.0% | 1.00 (0.99-1.00) | 42.1% | | Oropharyngeal swab | 2 | 0.62 (0.54-0.70) | 0.0% | 1.00 (0.99-1.00) | 61.8% |
| | Group B | | | | | | | Culture | 2 | 0.75 (0.65-0.83) | 10.9% | 0.91 (0.88-0.93) | 97.5% | | PCR | 20 | 0.85 (0.83-0.86) | 92.2% | 0.99 (0.98-0.99) | 83.6% | | Culture+PCR | 2 | 0.88 (0.74-0.96) | 88.2% | 0.98 (0.96-0.99) | 58.7% |
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CI: confidence interval.
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