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Table 8 Experiment results through the three detection methods

From: Traditional Chinese medicine pharmacovigilance in signal detection: decision tree-based data classification

Detection method

 

The subsample +

The subsample -

PRR

The total sample +

a = 1888 (a1 = 561, a0 = 1327)

b = 330 (b1 = 40,b0 = 290)

The total sample -

c = 321 (c1 = 34, c0 = 287)

d = 2158 (d1 = 195, d0 = 1963)

MHRA

The total sample +

a = 1488 (a1 = 456, a0 = 1032)

b = 348 (b1 = 56, b0 = 292)

The total sample -

c = 332 (c1 = 48, c0 = 284)

d = 2529 (d1 = 270, d0 = 2259)

IC

The total sample +

a = 579 (a1 = 274, a0 = 305)

b = 173 (b1 = 43, b0 = 130)

The total sample -

c = 81 (c1 = 31, c0 = 50)

d = 3864 (d1 = 482, d0 = 3382)