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. 2014 Feb 20;25(7):1564–1573. doi: 10.1681/ASN.2013090921

Table 3.

Association analysis of study participants who had two or more class I or II adverse safety events (n=102) from the at-risk sample of participants with at least one event (n=185)

Event (a) Count (a) Event (b) Count (b) Co-occurrence (n) Support (%) Confidence (a→b) (%) Confidence (b→a) (%) Lift Ratio P Value
Patients Patients with GFR<45 ml/min per 1.73 m2 Patients with GFR≥45 ml/min per 1.73 m2
Class I only
 Falling or severe dizziness 61 Confusion 12 9 3 6 4.9 14.8 75.0 2.3 0.001
 Muscle weakness or cramps 25 Edema 19 7 6 1 3.8 28.0 36.8 2.7 0.002
 Muscle weakness or cramps 25 Nausea, vomiting, and/or diarrhea 17 6 4 2 3.2 24.0 35.3 2.6 0.01
 Muscle weakness or cramps 25 Confusion 12 4 0 4 2.2 16.0 33.3 2.5 0.04
 Nausea, vomiting and/or diarrhea 17 Rash 8 3 3 0 1.6 17.7 37.5 4.1 0.01
 Bleeding 15 Angioedema 6 2 1 1 1.1 13.3 33.3 4.1 0.02
 Rash 8 Confusion 12 2 1 1 1.1 25.0 16.7 3.9 0.03
Class II only
 None
Class I and class II
 Hypoglycemia (class I) 87 Hypoglycemia (class II) 9 8 2 6 4.3 9.2 88.9 1.9 0.01
 Hypoglycemia (class I) 87 Hyperglycemia (class II) 7 6 1 5 3.2 6.9 85.7 1.8 0.04
 Muscle weakness or cramps (class I) 25 Hypokalemia (class II) 7 4 2 2 2.2 16.0 57.1 4.2 <0.001
 Edema (class I) 19 Low hemoglobin (class II) 14 4 3 1 2.2 21.1 28.6 2.8 0.02
 Confusion (class I) 12 Hypokalemia (class II) 7 2 0 2 1.1 16.7 28.6 4.4 0.02

Support: participants with a co-occurrence of the named events divided by the at-risk sample with at least one event (n=185). Confidence: frequency of participants with co-occurrence of events (a and b) divided by the frequency of participants with the designated antecedent event. Expected confidence: frequency of participants with the consequent event divided by the at-risk sample (not shown). Lift ratio: confidence divided by the expected confidence for the at-risk sample (note: lift ratio is identical regardless of the choice of antecedent and consequent designation in a pair).