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Table 3 Statistical evaluation of phenotypic methods compared with genotypic method

From: Evaluation of methods to detect in vitro biofilm formation by staphylococcal clinical isolates

Screening methods Sensitivity Specificity Positive predictive value Negative predictive value Accuracy
CRA 14 88.2 26.1 77.5 71.2
TM 64 74.4 42.6 87.8 72
TCP-dry 33.7 71.3 26 78.3 62.7
TCP-elution 30.2 72 24.3 77.6 62.4