Table 4 Confusion matrices representing the combination of pH measurement and protein electrophoresis, the combination of BIONOTE and Protein electrophoresis and the combination of all three techniques.

From: Integration of voltammetric analysis, protein electrophoresis and pH measurement for diagnosis of pleural effusions: a non-conventional diagnostic approach

 

Neoplastic

Non-neoplastic

Combination of pH measurement and protein electrophoresis

Neoplastic

35

17

Non-neoplastic

17

47

Combination of Bionote and protein electrophoresis

Neoplastic

36

16

Non-neoplastic

10

54

Combination of BIONOTE, protein electrophoresis and pH measurement

Neoplastic

40

12

Non-neoplastic

11

53

  1. pH measurement and protein electrophoresis Percentage of correct classification: 70.6%. Sensitivity: 67.3%. Specificity: 73.4%.
  2. BIONOTE and Protein Electrophoresis Percentage of correct classification: 77.6%. Sensitivity: 69.2%. Specificity: 84.4%.
  3. BIONOTE, pH measurement and Protein Electrophoresis Percentage of correct classification: 80.2%. Sensitivity: 77%. Specificity: 82.9%.
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