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Table 4 Signal detection results related to Potassium Magnesium Aspartate, Levofloxacin Hydrochloride and Cefazolin

From: A stratification method based on clustering for the minimization of data masking effect in signal detection

Drug (frequency)

ADR

DECs’ frequency

IC025 of non-stratification

IC025 of stratification

Potassium Magnesium Aspartate (2043)

pruritus

65

−2.42

1

anaphylactoid reaction

63

−0.67

0.94

headache

54

−1.17

0.64

dyspnoea

40

−0.25

0.48

cyanosis

11

−0.59

0.06

Levofloxacin Hydrochloride (111,335)

larynx oedema

69

−0.32

4.04

Infusion reaction

66

−0.93

3.76

skin discolouration

41

−3.46

3.7

vesicular rash

54

−1.46

3.02

tachycardia

66

−2.37

2.53

agitation

75

−0.52

2.37

asthma

29

−2.2

2.3

application site pain

114

−0.39

2.04

arrhythmia

26

−3.04

1.61

ecphysesis

121

−1.18

1.38

Cefazolin (15,105)

injection site rash

67

−0.12

2.27

larynx oedema

18

−0.21

1.47

ecphysesis

44

−0.17

1.41

injection site pruritus

30

−1.95

1.39

haematuria

22

−0.99

1.07

oedema periorbital

31

−0.61

1.06

anaesthesia local

57

−1.21

1.05

cutireaction

43

−1.18

1.04

diarrhoea

72

−3.34

0.9

sweating increased

79

−0.48

0.9