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Table 3 Cutoff values of available information and related statistical measures according to the examinations

From: Diagnostic accuracy of pattern differentiation algorithm based on Chinese medicine theory: a stochastic simulation study

 

Cutoff for criterion: N%

Methods

Ip

Ip+AO

Ip+AO+Iq

Ip+AO+Iq+P

(Four Examinations)

N simulated

13800

13800

13800

13800

N missing*

200

200

0

0

Cutoff

52.0%

51.5%

33.5%

28.5%

Accuracy

64.0%

(62.9; 65.2)

64.9%

(63.8; 66.1)

74.7%

(73.7; 75.7)

80.1%

(79.2; 81.1)

Area under the curve

63.4%

(62.0; 64.7)

64.6%

(63.3; 65.9)

81.6%

(80.1; 83.1)

85.3%

(83.8; 86.8)

Sensitivity

61.3%

(59.6; 63.2)

61.9%

(60.3; 63.6)

74.5%

(73.4; 75.7)

80.2%

(79.2; 81.2)

Specificity

65.9%

(64.5; 67.4)

67.7%

(66.2; 69.3)

75.5%

(73.2; 78.1)

79.5%

(77.3; 82.2)

  1. Ip: inspection, AO: auscultation-olfaction, Iq: inquiry, P: palpation
  2. Note:Missing cases are due to absence of manifestations describing the inspection method.