Table 2 Summary statistics of sensitivity and specificity according to quantile group

WBC

1.3–5.9

5.9–7.3

7.3–8.92

8.92–11.7

11.7–222.7

Sensitivity

74.1 [71.64‒76.1]

71.73 [69.39‒74.06]

91.95 [89.9‒93.64]

59.01 [55.04‒62.5]

33.33 [26.09‒40]

Specificity

92.29 [91.63‒92.93]

93.32 [92.73‒93.9]

95.88 [95.46‒96.34]

97.9 [97.56‒98.21]

98.76 [98.46‒98.97]

CRP

0.1–0.48

0.48–1.81

1.81–5.13

5.13–11.89

11.89–60.61

Sensitivity

55.97 [51.94‒60.29]

87.91 [85.39‒90.14]

83 [80.95‒85.06]

71.34 [68.82‒73.68]

45.41 [41.74‒48.89]

Specificity

95.7 [95.22‒96.15]

93.79 [93.25‒94.34]

97.1 [96.66‒97.5]

95.06 [94.56‒95.56]

98.79 [98.56‒99.01]

LD

62–174

174–206

206–244

244–309

309–5591

Sensitivity

83.2 [81.05‒85.04]

65.49 [62.5‒68.13]

81.1 [79.07‒83.15]

67.01 [63.28‒70.51]

60 [55.56‒64.52]

Specificity

96.66 [96.23‒97.05]

95.13 [94.63‒95.62]

95.73 [95.27‒96.19]

98.14 [97.84‒98.45]

92.26 [91.69‒92.83]

Age

18–55

55–64

64–71

71–77

77–98

Sensitivity

71.96 [69.64‒74.14]

74.14 [70.18‒77.97]

60.27 [56.05‒64.41]

64.95 [61.61‒68.22]

77.32 [74.49‒80.24]

Specificity

94.52 [94‒95.02]

96.25 [95.8‒96.68]

96.89 [96.47‒97.25]

96.49 [96.08‒96.89]

95.6 [95.13‒96.06]