Table 4

Contingency table and Fisher exact test for categorical variables*

VariableAKI
(n=4)
No AKI
(n=80)
p Value
Sex
 Female2 (50)38 (47.5)1.0000
 Male2 (50)42 (52.5)
Contrast type
 Omnipaque2 (50)43 (53.75)1.0000
 Visipaque2 (50)37 (46.25)
Interventional DSA
 Diagnostic1 (25)36 (45)0.6269
 Non-diagnostic3 (75)44 (55)
  • *Frequency and percentages (counts in the cell divided by counts in that column).

  • p Values from Fisher exact test are listed (the Fisher exact test is used when the χ2 test is needed but one or more of the cells has an expected frequency of <5).AKI, acute kidney injury; DSA, digital subtraction angiography.