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Table 2 Evaluation of diagnostic performance of serum BDG (at ≥ 117.7 pg/mL)

From: Negative serum (1,3) -β-D-glucan has a low power to exclude Pneumocystis jirovecii pneumonia (PJP) in HIV-uninfected patients with positive qPCR

Subgroups

Sen (%)

Spe (%)

LR

NPV (%)

PPV (%)

Derivation cohort (n = 121)

89.01

90.00

8.900

72.97

96.43

Validation cohort (n = 92)

76.47

91.67

9.176

57.89

96.30

≤ 60 years (n = 108)

89.53

95.45

19.70

70.00

78.57

> 60 years (n = 105)

78.08

87.50

6.247

63.63

93.44

Hematologic malignancies (n = 22) *

83.33

100.0

3.333

57.14

100.0

Solid cancer (n = 31)

80.00

100.0

9.350

73.33

100.0

Autoimmune or inflammatory disorders (n = 100)

83.12

82.61

4.779

61.29

94.20

Interstitial pneumonia (n = 15) *

66.67

100.0

2.000

42.86

100.0

Nephrotic syndrome (n = 24) *

100.0

50.00

2.000

100.0

95.65

Infectious diseases (n = 14)

100.0

100.0

7.000

100.0

100.0

Lung cancer (n = 12) *

55.56

100.0

2.000

42.86

100.0

  1. Sen: sensitivity; Spe: specificity; LR: likelihood ratio; NPV: negative predictive value; PPV: positive predictive value. The * indicates that the number of P. jirovecii-colonized cases was < 5