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Diagnostic parameters of Tube Method and Congo Red Agar method for biofilm detection
| Screening methods | Sensitivity (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | Accuracy (%) |
|---|---|---|---|---|---|
| Tube Method | 47.2 | 100 | 100 | 34.4 | 58.6 |
| CRA | 56.9 | 50 | 80.3 | 24.3 | 55.4 |
CRA: Congo Red Agar
