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Table 2 Results of MS analysis for microorganisms’ identification divided to microorganisms’ groups

From: Cheap and rapid in-house method for direct identification of positive blood cultures by MALDI-TOF MS technology

Microorganism group

N

SepsiTyper kit

In-house method

Sa < 1.7

1.7 ≤ S ≤ 1.999

S ≥ 2.0

No identification

S < 1.7

1.7 ≤ S ≤ 1.999

S ≥ 2.0

No identification

Gram negative bacteria

79

5

33

40

1

34

37

4

4

Gram positive bacteria

88

9

50

29

0

43

33

5

7

Yeasts

7

2

4

0

1

3

0

0

4

Anaerobic bacteria

12

4

7

1

0

7

2

0

3

Total N (%)

186

20 (11)

94 (50)

70 (38)

2 (1)

87 (47)

72 (39)

9 (5)

18 (10)