Table 2 Clinical outcomes

Carbon dioxide

50/50 (100%)

0/100 (0.0%)

n/a

Contrast (mls)

15.1 ± 14.0

115.6 ± 58.1

< 0.001

CIN all cases

7/50 (14%)

29/100 (29%)

0.045

CIN in CKD 3

5/38 (13%)

22/79 (28%)

0.10

CIN in CKD 4–5

2/12 (17%)

7/21 (33%)

0.43

∆ creatinine value (μmol/Lt) < 7 days

+ 6.7 ± 31.3

+ 28.2 ± 71.9

0.04

∆ creatinine value (μmol/Lt) at 30 days

-23.5 ± 38.5

−21.7 ± 26.0

0.94

Cut-off value of CM volume (as per ROC)