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Table 8 Comparison of the 10 different algorithms tested on a sub-panel of 280 strains that are represented by three or more strains in the in-house reference library

From: Decision criteria for MALDI-TOF MS-based identification of filamentous fungi using commercial and in-house reference databases

Threshold

A

B1

B2

C1

C2

C3

D1

D2

D3

D4

LS 1.5

%accepted

93.57

96.07

95.36

97.14

97.14

95.36

98.21

98.21

97.14

95.71

species PPV

0.93

0.94

0.92

0.94

0.94

0.91

0.95

0.93

0.92

0.90

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 1.6

%accepted

90.00

92.50

92.50

93.93

93.93

93.21

95.36

95.36

94.64

93.93

species PPV

0.94

0.94

0.92

0.95

0.95

0.91

0.96

0.95

0.93

0.91

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 1.7

%accepted

86.07

88.57

88.57

91.07

91.07

90.36

92.14

92.14

91.43

90.71

species PPV

0.95

0.95

0.92

0.96

0.95

0.92

0.97

0.95

0.94

0.91

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 1.8

%accepted

81.07

82.86

82.86

83.93

83.93

83.21

86.07

86.07

85.71

85.36

species PPV

0.96

0.96

0.93

0.97

0.97

0.93

0.97

0.96

0.95

0.92

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 1.9

%accepted

69.64

75.36

75.36

76.79

76.79

76.07

79.29

79.29

78.93

78.57

species PPV

0.97

0.96

0.95

0.97

0.97

0.93

0.97

0.96

0.95

0.93

genus PPV

1.00

0.99

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 2.0

%accepted

60.00

65.00

65.00

68.57

68.57

67.86

70.36

70.36

70.00

69.64

species PPV

0.98

0.97

0.95

0.97

0.97

0.94

0.97

0.96

0.95

0.94

genus PPV

1.00

0.99

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 2.1

%accepted

46.79

54.64

54.64

57.14

57.14

56.79

59.64

59.64

59.29

59.29

species PPV

0.98

0.97

0.95

0.98

0.98

0.94

0.98

0.97

0.96

0.94

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 2.2

%accepted

30.36

36.79

36.79

40.00

40.00

39.64

42.50

42.50

42.14

42.14

species PPV

0.99

0.97

0.95

0.97

0.97

0.95

0.98

0.97

0.97

0.96

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

LS 2.3

%accepted

15.71

19.29

19.29

21.43

21.43

21.43

22.50

22.50

22.50

22.50

species PPV

0.97

0.98

0.96

0.97

0.97

0.95

0.97

0.95

0.95

0.95

genus PPV

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

  1. % accepted: percentage of submitted strains that fulfilled the criteria for identification at either the genus or species level depending on the applied threshold; species PPV: positive predictive value at the species level; genus PPV: positive predictive value at the genus level