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Table 4 Diagnostic performance of different combinations of markers

From: Diagnostic value of platelet indices in infected nonunion: a retrospective study

Variable

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

PC/MPV or Plasma fibrinogen

78.13

80.10

65.22

88.46

PC/MPV + Plasma fibrinogen

41.67

98.01

90.91

77.87

PC/MPV or ESR

82.29

77.61

63.71

90.17

PC/MPV + ESR

48.95

98.51

94.00

80.16

Plasma fibrinogen or ESR

84.38

73.63

60.45

90.80

Plasma fibrinogen + ESR

52.08

93.53

79.37

80.34

PC/MPV or plasma fibrinogen or ESR

87.50

69.15

57.53

92.05

PC/MPV + plasma fibrinogen + ESR

39.58

99.00

95.00

77.43

  1. PC, platelet count; MPV, mean platelet volume; ESR, erythrocyte sedimentation rate; PPV, positive predictive value; NPV, negative predictive value